./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 510f6399de30aae42aa795fff1cb0eb2c142b650 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:16:24,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:16:24,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:16:24,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:16:24,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:16:24,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:16:24,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:16:24,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:16:24,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:16:24,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:16:24,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:16:24,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:16:24,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:16:24,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:16:24,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:16:24,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:16:24,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:16:24,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:16:24,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:16:24,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:16:24,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:16:24,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:16:24,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:16:24,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:16:24,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:16:24,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:16:24,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:16:24,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:16:24,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:16:24,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:16:24,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:16:24,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:16:24,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:16:24,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:16:24,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:16:24,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:16:24,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:16:24,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:16:24,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:16:24,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:16:24,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:16:24,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:16:24,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:16:24,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:16:24,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:16:24,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:16:24,311 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:16:24,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:16:24,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:16:24,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:16:24,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:16:24,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:16:24,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:16:24,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:16:24,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:16:24,313 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:16:24,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:16:24,314 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:16:24,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:16:24,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:16:24,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:16:24,315 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:16:24,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:16:24,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:16:24,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:16:24,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:16:24,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:16:24,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:16:24,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:16:24,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:16:24,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:16:24,318 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_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 510f6399de30aae42aa795fff1cb0eb2c142b650 [2020-12-01 15:16:24,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:16:24,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:16:24,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:16:24,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:16:24,645 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:16:24,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2020-12-01 15:16:24,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/data/e7f6245a6/1f8ca29c0da2454dad59acf3d93371cd/FLAG00ae1c20b [2020-12-01 15:16:25,467 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:16:25,467 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2020-12-01 15:16:25,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/data/e7f6245a6/1f8ca29c0da2454dad59acf3d93371cd/FLAG00ae1c20b [2020-12-01 15:16:25,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/data/e7f6245a6/1f8ca29c0da2454dad59acf3d93371cd [2020-12-01 15:16:25,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:16:25,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:16:25,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:16:25,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:16:25,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:16:25,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:16:25" (1/1) ... [2020-12-01 15:16:25,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3157ee34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:25, skipping insertion in model container [2020-12-01 15:16:25,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:16:25" (1/1) ... [2020-12-01 15:16:25,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:16:25,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:16:26,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:16:26,325 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:16:26,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:16:26,616 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:16:26,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26 WrapperNode [2020-12-01 15:16:26,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:16:26,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:16:26,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:16:26,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:16:26,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:16:26,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:16:26,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:16:26,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:16:26,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... [2020-12-01 15:16:26,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:16:26,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:16:26,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:16:26,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:16:26,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 [2020-12-01 15:16:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:16:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:16:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:16:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:16:29,255 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:16:29,256 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:16:29,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:16:29 BoogieIcfgContainer [2020-12-01 15:16:29,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:16:29,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:16:29,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:16:29,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:16:29,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:16:25" (1/3) ... [2020-12-01 15:16:29,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:16:29, skipping insertion in model container [2020-12-01 15:16:29,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:16:26" (2/3) ... [2020-12-01 15:16:29,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d93ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:16:29, skipping insertion in model container [2020-12-01 15:16:29,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:16:29" (3/3) ... [2020-12-01 15:16:29,279 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2020-12-01 15:16:29,302 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:16:29,307 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:16:29,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:16:29,377 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:16:29,377 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:16:29,378 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:16:29,378 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:16:29,378 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:16:29,378 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:16:29,379 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:16:29,379 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:16:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-12-01 15:16:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 15:16:29,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:29,423 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] [2020-12-01 15:16:29,423 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:29,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2113343065, now seen corresponding path program 1 times [2020-12-01 15:16:29,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:29,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084302318] [2020-12-01 15:16:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:16:29,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084302318] [2020-12-01 15:16:29,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:29,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:16:29,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468729421] [2020-12-01 15:16:29,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:29,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:29,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:29,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:16:29,766 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-12-01 15:16:31,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:31,375 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-12-01 15:16:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:31,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-01 15:16:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:31,421 INFO L225 Difference]: With dead ends: 670 [2020-12-01 15:16:31,421 INFO L226 Difference]: Without dead ends: 360 [2020-12-01 15:16:31,431 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 [2020-12-01 15:16:31,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-01 15:16:31,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-01 15:16:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-01 15:16:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 546 transitions. [2020-12-01 15:16:31,562 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 546 transitions. Word has length 33 [2020-12-01 15:16:31,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:31,564 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 546 transitions. [2020-12-01 15:16:31,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 546 transitions. [2020-12-01 15:16:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-01 15:16:31,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:31,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:31,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:16:31,577 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:31,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:31,582 INFO L82 PathProgramCache]: Analyzing trace with hash 72927101, now seen corresponding path program 1 times [2020-12-01 15:16:31,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:31,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412099323] [2020-12-01 15:16:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:31,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:16:31,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412099323] [2020-12-01 15:16:31,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:31,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:16:31,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133483742] [2020-12-01 15:16:31,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:31,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:31,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:31,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:16:31,927 INFO L87 Difference]: Start difference. First operand 360 states and 546 transitions. Second operand 3 states. [2020-12-01 15:16:33,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:33,232 INFO L93 Difference]: Finished difference Result 1074 states and 1633 transitions. [2020-12-01 15:16:33,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:33,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-12-01 15:16:33,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:33,239 INFO L225 Difference]: With dead ends: 1074 [2020-12-01 15:16:33,239 INFO L226 Difference]: Without dead ends: 716 [2020-12-01 15:16:33,241 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 [2020-12-01 15:16:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-01 15:16:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-01 15:16:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-01 15:16:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2020-12-01 15:16:33,315 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 108 [2020-12-01 15:16:33,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:33,316 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2020-12-01 15:16:33,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:33,317 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2020-12-01 15:16:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-01 15:16:33,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:33,321 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:33,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:16:33,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:33,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1929899079, now seen corresponding path program 1 times [2020-12-01 15:16:33,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:33,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966601981] [2020-12-01 15:16:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:16:33,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966601981] [2020-12-01 15:16:33,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:33,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:16:33,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033426739] [2020-12-01 15:16:33,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:16:33,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:33,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:16:33,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:16:33,597 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand 4 states. [2020-12-01 15:16:35,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:35,423 INFO L93 Difference]: Finished difference Result 1964 states and 2570 transitions. [2020-12-01 15:16:35,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:16:35,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2020-12-01 15:16:35,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:35,435 INFO L225 Difference]: With dead ends: 1964 [2020-12-01 15:16:35,436 INFO L226 Difference]: Without dead ends: 1250 [2020-12-01 15:16:35,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:16:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-01 15:16:35,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-01 15:16:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-01 15:16:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1544 transitions. [2020-12-01 15:16:35,480 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1544 transitions. Word has length 112 [2020-12-01 15:16:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:35,481 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1544 transitions. [2020-12-01 15:16:35,481 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:16:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1544 transitions. [2020-12-01 15:16:35,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-01 15:16:35,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:35,489 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-01 15:16:35,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:16:35,489 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash 475221302, now seen corresponding path program 1 times [2020-12-01 15:16:35,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:35,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532777842] [2020-12-01 15:16:35,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:35,766 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 15:16:35,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532777842] [2020-12-01 15:16:35,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:35,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:16:35,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152363139] [2020-12-01 15:16:35,768 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:16:35,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:35,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:16:35,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:16:35,769 INFO L87 Difference]: Start difference. First operand 1250 states and 1544 transitions. Second operand 4 states. [2020-12-01 15:16:36,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:36,996 INFO L93 Difference]: Finished difference Result 2705 states and 3353 transitions. [2020-12-01 15:16:36,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:16:36,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-12-01 15:16:36,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:37,008 INFO L225 Difference]: With dead ends: 2705 [2020-12-01 15:16:37,009 INFO L226 Difference]: Without dead ends: 1606 [2020-12-01 15:16:37,011 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 [2020-12-01 15:16:37,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-01 15:16:37,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-01 15:16:37,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-01 15:16:37,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1801 transitions. [2020-12-01 15:16:37,056 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1801 transitions. Word has length 192 [2020-12-01 15:16:37,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:37,057 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1801 transitions. [2020-12-01 15:16:37,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:16:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1801 transitions. [2020-12-01 15:16:37,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-12-01 15:16:37,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:37,064 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:37,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:16:37,064 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:37,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:37,065 INFO L82 PathProgramCache]: Analyzing trace with hash 71380608, now seen corresponding path program 1 times [2020-12-01 15:16:37,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:37,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79875301] [2020-12-01 15:16:37,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:37,806 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 140 proven. 130 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-12-01 15:16:37,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79875301] [2020-12-01 15:16:37,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320971259] [2020-12-01 15:16:37,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 [2020-12-01 15:16:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:38,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:38,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-12-01 15:16:38,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:38,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-01 15:16:38,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447730635] [2020-12-01 15:16:38,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:38,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:38,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:38,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:16:38,722 INFO L87 Difference]: Start difference. First operand 1606 states and 1801 transitions. Second operand 3 states. [2020-12-01 15:16:39,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:39,689 INFO L93 Difference]: Finished difference Result 3388 states and 3901 transitions. [2020-12-01 15:16:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:39,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 319 [2020-12-01 15:16:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:39,702 INFO L225 Difference]: With dead ends: 3388 [2020-12-01 15:16:39,703 INFO L226 Difference]: Without dead ends: 1962 [2020-12-01 15:16:39,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:16:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-12-01 15:16:39,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-12-01 15:16:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-12-01 15:16:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2018 transitions. [2020-12-01 15:16:39,756 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2018 transitions. Word has length 319 [2020-12-01 15:16:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:39,757 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2018 transitions. [2020-12-01 15:16:39,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2018 transitions. [2020-12-01 15:16:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-12-01 15:16:39,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:39,763 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:39,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:39,992 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:39,992 INFO L82 PathProgramCache]: Analyzing trace with hash -359720502, now seen corresponding path program 1 times [2020-12-01 15:16:39,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:39,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358569960] [2020-12-01 15:16:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 223 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:16:40,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358569960] [2020-12-01 15:16:40,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663696794] [2020-12-01 15:16:40,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 [2020-12-01 15:16:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:40,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:40,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-01 15:16:41,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:41,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:16:41,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224108680] [2020-12-01 15:16:41,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:41,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:41,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:41,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:41,465 INFO L87 Difference]: Start difference. First operand 1784 states and 2018 transitions. Second operand 3 states. [2020-12-01 15:16:42,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:42,406 INFO L93 Difference]: Finished difference Result 3744 states and 4250 transitions. [2020-12-01 15:16:42,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:42,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 323 [2020-12-01 15:16:42,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:42,421 INFO L225 Difference]: With dead ends: 3744 [2020-12-01 15:16:42,421 INFO L226 Difference]: Without dead ends: 1962 [2020-12-01 15:16:42,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:42,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-12-01 15:16:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1606. [2020-12-01 15:16:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-01 15:16:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1799 transitions. [2020-12-01 15:16:42,484 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1799 transitions. Word has length 323 [2020-12-01 15:16:42,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:42,490 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1799 transitions. [2020-12-01 15:16:42,490 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:42,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1799 transitions. [2020-12-01 15:16:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-12-01 15:16:42,498 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:42,498 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-12-01 15:16:42,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:42,712 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1097122152, now seen corresponding path program 1 times [2020-12-01 15:16:42,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:42,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542394254] [2020-12-01 15:16:42,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-01 15:16:43,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542394254] [2020-12-01 15:16:43,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:43,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:16:43,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564264095] [2020-12-01 15:16:43,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:43,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:43,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:43,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:16:43,040 INFO L87 Difference]: Start difference. First operand 1606 states and 1799 transitions. Second operand 3 states. [2020-12-01 15:16:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:44,038 INFO L93 Difference]: Finished difference Result 3566 states and 4068 transitions. [2020-12-01 15:16:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:44,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 350 [2020-12-01 15:16:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:44,055 INFO L225 Difference]: With dead ends: 3566 [2020-12-01 15:16:44,055 INFO L226 Difference]: Without dead ends: 2140 [2020-12-01 15:16:44,058 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 [2020-12-01 15:16:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-01 15:16:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-12-01 15:16:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-01 15:16:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2206 transitions. [2020-12-01 15:16:44,116 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2206 transitions. Word has length 350 [2020-12-01 15:16:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:44,117 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2206 transitions. [2020-12-01 15:16:44,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2206 transitions. [2020-12-01 15:16:44,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-12-01 15:16:44,125 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:44,125 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:44,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-01 15:16:44,126 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:44,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1250141587, now seen corresponding path program 1 times [2020-12-01 15:16:44,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:44,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110705503] [2020-12-01 15:16:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 276 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:16:44,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110705503] [2020-12-01 15:16:44,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110085528] [2020-12-01 15:16:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 [2020-12-01 15:16:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:44,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:44,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:45,390 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-12-01 15:16:45,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:45,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:16:45,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793451787] [2020-12-01 15:16:45,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:45,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:45,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:45,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:45,393 INFO L87 Difference]: Start difference. First operand 1962 states and 2206 transitions. Second operand 3 states. [2020-12-01 15:16:46,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:46,307 INFO L93 Difference]: Finished difference Result 3566 states and 4052 transitions. [2020-12-01 15:16:46,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:46,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 352 [2020-12-01 15:16:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:46,321 INFO L225 Difference]: With dead ends: 3566 [2020-12-01 15:16:46,322 INFO L226 Difference]: Without dead ends: 1962 [2020-12-01 15:16:46,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-12-01 15:16:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1962. [2020-12-01 15:16:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-12-01 15:16:46,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2160 transitions. [2020-12-01 15:16:46,380 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2160 transitions. Word has length 352 [2020-12-01 15:16:46,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:46,381 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2160 transitions. [2020-12-01 15:16:46,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2160 transitions. [2020-12-01 15:16:46,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-12-01 15:16:46,390 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:46,390 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:46,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:46,604 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:46,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:46,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1806668865, now seen corresponding path program 1 times [2020-12-01 15:16:46,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:46,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259951665] [2020-12-01 15:16:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2020-12-01 15:16:47,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259951665] [2020-12-01 15:16:47,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200786503] [2020-12-01 15:16:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/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 [2020-12-01 15:16:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:47,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:47,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2020-12-01 15:16:47,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:47,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-12-01 15:16:47,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265315971] [2020-12-01 15:16:47,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:47,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:47,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:47,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:16:47,870 INFO L87 Difference]: Start difference. First operand 1962 states and 2160 transitions. Second operand 3 states. [2020-12-01 15:16:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:48,595 INFO L93 Difference]: Finished difference Result 2498 states and 2774 transitions. [2020-12-01 15:16:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:48,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2020-12-01 15:16:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:48,613 INFO L225 Difference]: With dead ends: 2498 [2020-12-01 15:16:48,613 INFO L226 Difference]: Without dead ends: 2496 [2020-12-01 15:16:48,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:16:48,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-01 15:16:48,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2140. [2020-12-01 15:16:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-01 15:16:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2374 transitions. [2020-12-01 15:16:48,675 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2374 transitions. Word has length 357 [2020-12-01 15:16:48,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:48,676 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2374 transitions. [2020-12-01 15:16:48,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:48,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2374 transitions. [2020-12-01 15:16:48,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2020-12-01 15:16:48,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:48,683 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:48,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:48,908 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:48,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:48,908 INFO L82 PathProgramCache]: Analyzing trace with hash -738891510, now seen corresponding path program 1 times [2020-12-01 15:16:48,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:48,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272309832] [2020-12-01 15:16:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 578 proven. 130 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-01 15:16:49,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272309832] [2020-12-01 15:16:49,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631376587] [2020-12-01 15:16:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:49,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:49,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2020-12-01 15:16:50,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:50,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2020-12-01 15:16:50,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168425248] [2020-12-01 15:16:50,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:50,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:50,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:50,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:50,431 INFO L87 Difference]: Start difference. First operand 2140 states and 2374 transitions. Second operand 3 states. [2020-12-01 15:16:51,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:51,208 INFO L93 Difference]: Finished difference Result 4634 states and 5227 transitions. [2020-12-01 15:16:51,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:51,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 453 [2020-12-01 15:16:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:51,229 INFO L225 Difference]: With dead ends: 4634 [2020-12-01 15:16:51,229 INFO L226 Difference]: Without dead ends: 2852 [2020-12-01 15:16:51,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:51,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-12-01 15:16:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2496. [2020-12-01 15:16:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-12-01 15:16:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2800 transitions. [2020-12-01 15:16:51,302 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2800 transitions. Word has length 453 [2020-12-01 15:16:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:51,303 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2800 transitions. [2020-12-01 15:16:51,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2800 transitions. [2020-12-01 15:16:51,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2020-12-01 15:16:51,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:51,310 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:51,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-01 15:16:51,536 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:51,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:51,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1506656967, now seen corresponding path program 1 times [2020-12-01 15:16:51,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:51,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959642866] [2020-12-01 15:16:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 593 proven. 130 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-01 15:16:52,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959642866] [2020-12-01 15:16:52,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843752239] [2020-12-01 15:16:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:52,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:16:52,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:16:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-12-01 15:16:53,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:16:53,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-01 15:16:53,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746008646] [2020-12-01 15:16:53,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:53,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:53,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:53,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:53,443 INFO L87 Difference]: Start difference. First operand 2496 states and 2800 transitions. Second operand 3 states. [2020-12-01 15:16:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:54,004 INFO L93 Difference]: Finished difference Result 4812 states and 5423 transitions. [2020-12-01 15:16:54,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:54,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 459 [2020-12-01 15:16:54,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:54,017 INFO L225 Difference]: With dead ends: 4812 [2020-12-01 15:16:54,018 INFO L226 Difference]: Without dead ends: 2496 [2020-12-01 15:16:54,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:16:54,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-12-01 15:16:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-12-01 15:16:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-12-01 15:16:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2617 transitions. [2020-12-01 15:16:54,081 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2617 transitions. Word has length 459 [2020-12-01 15:16:54,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:54,082 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2617 transitions. [2020-12-01 15:16:54,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2617 transitions. [2020-12-01 15:16:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-12-01 15:16:54,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:54,092 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:54,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:54,308 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:54,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1995146421, now seen corresponding path program 1 times [2020-12-01 15:16:54,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:54,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083945997] [2020-12-01 15:16:54,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 940 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-12-01 15:16:55,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083945997] [2020-12-01 15:16:55,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:55,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:16:55,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149556444] [2020-12-01 15:16:55,017 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:55,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:55,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:55,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:16:55,018 INFO L87 Difference]: Start difference. First operand 2496 states and 2617 transitions. Second operand 3 states. [2020-12-01 15:16:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:55,640 INFO L93 Difference]: Finished difference Result 5524 states and 5814 transitions. [2020-12-01 15:16:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:55,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 703 [2020-12-01 15:16:55,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:55,660 INFO L225 Difference]: With dead ends: 5524 [2020-12-01 15:16:55,660 INFO L226 Difference]: Without dead ends: 3386 [2020-12-01 15:16:55,664 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 [2020-12-01 15:16:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-12-01 15:16:55,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-12-01 15:16:55,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-12-01 15:16:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3537 transitions. [2020-12-01 15:16:55,756 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3537 transitions. Word has length 703 [2020-12-01 15:16:55,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:55,757 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3537 transitions. [2020-12-01 15:16:55,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:55,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3537 transitions. [2020-12-01 15:16:55,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2020-12-01 15:16:55,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:55,770 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:55,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-01 15:16:55,771 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:55,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1862166155, now seen corresponding path program 1 times [2020-12-01 15:16:55,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:55,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295755639] [2020-12-01 15:16:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 1066 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2020-12-01 15:16:56,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295755639] [2020-12-01 15:16:56,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:16:56,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:16:56,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36841762] [2020-12-01 15:16:56,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:16:56,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:16:56,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:16:56,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:16:56,842 INFO L87 Difference]: Start difference. First operand 3386 states and 3537 transitions. Second operand 3 states. [2020-12-01 15:16:57,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:16:57,646 INFO L93 Difference]: Finished difference Result 6948 states and 7275 transitions. [2020-12-01 15:16:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:16:57,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 763 [2020-12-01 15:16:57,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:16:57,670 INFO L225 Difference]: With dead ends: 6948 [2020-12-01 15:16:57,670 INFO L226 Difference]: Without dead ends: 3920 [2020-12-01 15:16:57,675 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 [2020-12-01 15:16:57,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-01 15:16:57,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2020-12-01 15:16:57,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-12-01 15:16:57,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4086 transitions. [2020-12-01 15:16:57,775 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4086 transitions. Word has length 763 [2020-12-01 15:16:57,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:16:57,777 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4086 transitions. [2020-12-01 15:16:57,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:16:57,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4086 transitions. [2020-12-01 15:16:57,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2020-12-01 15:16:57,790 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:16:57,791 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:16:57,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-01 15:16:57,792 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:16:57,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:16:57,795 INFO L82 PathProgramCache]: Analyzing trace with hash 379747093, now seen corresponding path program 1 times [2020-12-01 15:16:57,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:16:57,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432146727] [2020-12-01 15:16:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:16:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1449 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-12-01 15:16:58,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432146727] [2020-12-01 15:16:58,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17020104] [2020-12-01 15:16:58,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:16:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:16:59,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:16:59,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:17:00,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2020-12-01 15:17:00,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:17:00,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-12-01 15:17:00,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086622256] [2020-12-01 15:17:00,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-01 15:17:00,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:17:00,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:17:00,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:17:00,814 INFO L87 Difference]: Start difference. First operand 3920 states and 4086 transitions. Second operand 3 states. [2020-12-01 15:17:01,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:17:01,519 INFO L93 Difference]: Finished difference Result 8014 states and 8375 transitions. [2020-12-01 15:17:01,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:17:01,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 858 [2020-12-01 15:17:01,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:17:01,522 INFO L225 Difference]: With dead ends: 8014 [2020-12-01 15:17:01,522 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:17:01,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:17:01,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:17:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:17:01,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:17:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:17:01,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 858 [2020-12-01 15:17:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:17:01,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:17:01,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-01 15:17:01,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:17:01,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:17:01,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-01 15:17:01,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:17:02,011 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2020-12-01 15:17:02,189 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2020-12-01 15:17:02,193 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-01 15:17:02,194 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-01 15:17:02,194 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-01 15:17:02,194 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-01 15:17:02,194 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-01 15:17:02,194 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-01 15:17:02,195 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,196 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-01 15:17:02,197 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,198 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-01 15:17:02,199 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-01 15:17:02,200 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-01 15:17:02,201 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-01 15:17:02,202 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,203 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-01 15:17:02,204 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,205 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-01 15:17:02,206 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-01 15:17:02,207 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-01 15:17:02,208 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-01 15:17:02,209 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,210 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:17:02,211 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-01 15:17:02,212 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:17:02,212 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-01 15:17:02,212 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-01 15:17:02,212 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-01 15:17:02,213 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-01 15:17:02,213 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,213 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,213 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,213 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-01 15:17:02,214 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-01 15:17:02,215 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,216 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-01 15:17:02,217 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,218 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-01 15:17:02,219 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-01 15:17:02,220 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-01 15:17:02,221 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-01 15:17:02,222 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,223 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-01 15:17:02,224 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,225 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,227 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse3 (<= ~a21~0 8)) (.cse0 (< 11 ~a12~0)) (.cse2 (<= ~a24~0 1)) (.cse1 (<= 9 ~a15~0)) (.cse4 (<= 10 ~a21~0))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse1 .cse3) (and .cse2 .cse0) (and (<= ~a12~0 11) (<= ~a15~0 6)) (and .cse2 .cse4) (and (<= 8 ~a15~0) .cse2 (<= ~a15~0 8)) (and .cse1 .cse4))) [2020-12-01 15:17:02,227 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-01 15:17:02,227 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-01 15:17:02,228 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-01 15:17:02,229 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,229 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,229 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-01 15:17:02,229 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-01 15:17:02,229 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-01 15:17:02,229 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,230 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-01 15:17:02,231 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-01 15:17:02,232 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,232 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,232 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-01 15:17:02,232 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,232 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse3 (<= ~a21~0 8)) (.cse0 (< 11 ~a12~0)) (.cse2 (<= ~a24~0 1)) (.cse1 (<= 9 ~a15~0)) (.cse4 (<= 10 ~a21~0))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse1 .cse3) (and .cse2 .cse0) (and (<= ~a12~0 11) (<= ~a15~0 6)) (and .cse2 .cse4) (and (<= 8 ~a15~0) .cse2 (<= ~a15~0 8)) (and .cse1 .cse4))) [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-01 15:17:02,233 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,234 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-01 15:17:02,235 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-01 15:17:02,235 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-01 15:17:02,235 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-01 15:17:02,236 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-01 15:17:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:17:02 BoogieIcfgContainer [2020-12-01 15:17:02,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:17:02,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:17:02,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:17:02,283 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:17:02,290 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:16:29" (3/4) ... [2020-12-01 15:17:02,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:17:02,340 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:17:02,342 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:17:02,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:17:02,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:17:02,567 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1c7e2ecb-8077-4e37-bf0e-e16c5a2fdecc/bin/uautomizer/witness.graphml [2020-12-01 15:17:02,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:17:02,569 INFO L168 Benchmark]: Toolchain (without parser) took 36895.86 ms. Allocated memory was 83.9 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 53.0 MB in the beginning and 1.0 GB in the end (delta: -947.6 MB). Peak memory consumption was 160.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,569 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 83.9 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:17:02,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 943.96 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.8 MB in the beginning and 55.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.99 ms. Allocated memory is still 100.7 MB. Free memory was 55.7 MB in the beginning and 46.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,572 INFO L168 Benchmark]: Boogie Preprocessor took 138.51 ms. Allocated memory is still 100.7 MB. Free memory was 46.0 MB in the beginning and 40.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,572 INFO L168 Benchmark]: RCFGBuilder took 2359.88 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 39.5 MB in the beginning and 59.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,573 INFO L168 Benchmark]: TraceAbstraction took 33015.91 ms. Allocated memory was 132.1 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 58.5 MB in the beginning and 1.0 GB in the end (delta: -961.0 MB). Peak memory consumption was 99.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,574 INFO L168 Benchmark]: Witness Printer took 285.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:17:02,576 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 83.9 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 943.96 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.8 MB in the beginning and 55.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.99 ms. Allocated memory is still 100.7 MB. Free memory was 55.7 MB in the beginning and 46.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 138.51 ms. Allocated memory is still 100.7 MB. Free memory was 46.0 MB in the beginning and 40.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2359.88 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 39.5 MB in the beginning and 59.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 33015.91 ms. Allocated memory was 132.1 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 58.5 MB in the beginning and 1.0 GB in the end (delta: -961.0 MB). Peak memory consumption was 99.9 MB. Max. memory is 16.1 GB. * Witness Printer took 285.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 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: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((11 < a12 && 9 <= a15) || (a24 <= 1 && a21 <= 8)) || (9 <= a15 && a21 <= 8)) || (a24 <= 1 && 11 < a12)) || (a12 <= 11 && a15 <= 6)) || (a24 <= 1 && 10 <= a21)) || ((8 <= a15 && a24 <= 1) && a15 <= 8)) || (9 <= a15 && 10 <= a21) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((11 < a12 && 9 <= a15) || (a24 <= 1 && a21 <= 8)) || (9 <= a15 && a21 <= 8)) || (a24 <= 1 && 11 < a12)) || (a12 <= 11 && a15 <= 6)) || (a24 <= 1 && 10 <= a21)) || ((8 <= a15 && a24 <= 1) && a15 <= 8)) || (9 <= a15 && 10 <= a21) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 32.3s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1577 SDtfs, 1851 SDslu, 70 SDs, 0 SdLazy, 6867 SolverSat, 1008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3165 GetRequests, 3125 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3920occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 1424 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 121 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1494 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 196 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 8503 NumberOfCodeBlocks, 8503 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 8482 ConstructedInterpolants, 0 QuantifiedInterpolants, 12060090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4170 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 21 InterpolantComputations, 14 PerfectInterpolantSequences, 12344/13197 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...