./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label59.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label59.c -s /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/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 5a28fdd86bff741a69b5107a4cdb7e4556ea4db4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:30:56,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:30:56,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:30:56,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:30:56,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:30:56,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:30:56,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:30:56,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:30:56,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:30:56,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:30:56,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:30:56,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:30:56,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:30:56,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:30:56,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:30:56,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:30:56,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:30:56,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:30:56,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:30:56,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:30:56,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:30:56,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:30:56,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:30:56,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:30:56,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:30:56,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:30:56,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:30:56,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:30:56,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:30:56,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:30:56,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:30:56,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:30:56,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:30:56,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:30:56,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:30:56,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:30:56,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:30:56,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:30:56,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:30:56,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:30:56,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:30:56,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 18:30:56,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:30:56,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:30:56,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:30:56,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:30:56,305 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:30:56,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:30:56,306 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:30:56,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:30:56,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:30:56,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:30:56,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 18:30:56,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 18:30:56,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 18:30:56,309 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:30:56,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:30:56,310 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:30:56,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 18:30:56,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:30:56,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:30:56,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 18:30:56,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 18:30:56,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:30:56,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:30:56,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 18:30:56,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 18:30:56,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:30:56,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 18:30:56,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 18:30:56,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:30:56,314 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_29d32799-6def-4f2f-a333-5b37ebd0ba39/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a28fdd86bff741a69b5107a4cdb7e4556ea4db4 [2020-11-29 18:30:56,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:30:56,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:30:56,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:30:56,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:30:56,596 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:30:56,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2020-11-29 18:30:56,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/data/555b990cb/8914e23075aa4fe59d6a2a04dca32234/FLAGdec1558e1 [2020-11-29 18:30:57,493 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:30:57,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/sv-benchmarks/c/eca-rers2012/Problem14_label59.c [2020-11-29 18:30:57,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/data/555b990cb/8914e23075aa4fe59d6a2a04dca32234/FLAGdec1558e1 [2020-11-29 18:30:57,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/data/555b990cb/8914e23075aa4fe59d6a2a04dca32234 [2020-11-29 18:30:57,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:30:57,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:30:57,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:57,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:30:57,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:30:57,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:57" (1/1) ... [2020-11-29 18:30:57,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e8d6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:57, skipping insertion in model container [2020-11-29 18:30:57,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:30:57" (1/1) ... [2020-11-29 18:30:57,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:30:57,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:30:58,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:58,244 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:30:58,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:30:58,555 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:30:58,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58 WrapperNode [2020-11-29 18:30:58,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:30:58,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:58,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:30:58,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:30:58,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:30:58,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:30:58,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:30:58,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:30:58,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... [2020-11-29 18:30:58,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:30:58,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:30:58,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:30:58,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:30:58,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 18:30:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:30:58,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:30:58,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:30:58,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:31:01,032 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:31:01,033 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 18:31:01,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:01 BoogieIcfgContainer [2020-11-29 18:31:01,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:31:01,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 18:31:01,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 18:31:01,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 18:31:01,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:30:57" (1/3) ... [2020-11-29 18:31:01,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723db11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:31:01, skipping insertion in model container [2020-11-29 18:31:01,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:30:58" (2/3) ... [2020-11-29 18:31:01,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723db11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:31:01, skipping insertion in model container [2020-11-29 18:31:01,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:01" (3/3) ... [2020-11-29 18:31:01,050 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label59.c [2020-11-29 18:31:01,063 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 18:31:01,068 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 18:31:01,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 18:31:01,122 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 18:31:01,123 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 18:31:01,123 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 18:31:01,123 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:31:01,123 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:31:01,123 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 18:31:01,124 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:31:01,124 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 18:31:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-11-29 18:31:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-29 18:31:01,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:01,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:01,161 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:01,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:01,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2020-11-29 18:31:01,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:01,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427626390] [2020-11-29 18:31:01,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:01,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427626390] [2020-11-29 18:31:01,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:01,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:31:01,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885619098] [2020-11-29 18:31:01,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:01,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:01,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:01,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:01,620 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-11-29 18:31:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:03,266 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-11-29 18:31:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:03,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-11-29 18:31:03,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:03,295 INFO L225 Difference]: With dead ends: 670 [2020-11-29 18:31:03,295 INFO L226 Difference]: Without dead ends: 360 [2020-11-29 18:31:03,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:03,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-11-29 18:31:03,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-11-29 18:31:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-11-29 18:31:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-11-29 18:31:03,423 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 40 [2020-11-29 18:31:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:03,424 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-11-29 18:31:03,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-11-29 18:31:03,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-11-29 18:31:03,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:03,437 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:03,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 18:31:03,437 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:03,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1050796950, now seen corresponding path program 1 times [2020-11-29 18:31:03,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:03,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764391657] [2020-11-29 18:31:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:03,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764391657] [2020-11-29 18:31:03,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:03,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:31:03,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833797107] [2020-11-29 18:31:03,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:03,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:03,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:03,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:03,683 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-11-29 18:31:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:04,963 INFO L93 Difference]: Finished difference Result 1076 states and 1760 transitions. [2020-11-29 18:31:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:04,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-11-29 18:31:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:04,973 INFO L225 Difference]: With dead ends: 1076 [2020-11-29 18:31:04,974 INFO L226 Difference]: Without dead ends: 718 [2020-11-29 18:31:04,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-11-29 18:31:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 716. [2020-11-29 18:31:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-11-29 18:31:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1017 transitions. [2020-11-29 18:31:05,039 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1017 transitions. Word has length 105 [2020-11-29 18:31:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:05,040 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 1017 transitions. [2020-11-29 18:31:05,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1017 transitions. [2020-11-29 18:31:05,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-11-29 18:31:05,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:05,044 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:05,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 18:31:05,044 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:05,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:05,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1337653759, now seen corresponding path program 1 times [2020-11-29 18:31:05,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:05,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408582590] [2020-11-29 18:31:05,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:05,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408582590] [2020-11-29 18:31:05,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:05,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 18:31:05,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391572457] [2020-11-29 18:31:05,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:05,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:05,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:05,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:05,213 INFO L87 Difference]: Start difference. First operand 716 states and 1017 transitions. Second operand 3 states. [2020-11-29 18:31:06,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:06,455 INFO L93 Difference]: Finished difference Result 1786 states and 2617 transitions. [2020-11-29 18:31:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:06,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-11-29 18:31:06,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:06,466 INFO L225 Difference]: With dead ends: 1786 [2020-11-29 18:31:06,466 INFO L226 Difference]: Without dead ends: 1072 [2020-11-29 18:31:06,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-11-29 18:31:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-11-29 18:31:06,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-11-29 18:31:06,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1482 transitions. [2020-11-29 18:31:06,538 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1482 transitions. Word has length 106 [2020-11-29 18:31:06,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:06,539 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1482 transitions. [2020-11-29 18:31:06,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1482 transitions. [2020-11-29 18:31:06,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-11-29 18:31:06,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:06,546 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:06,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 18:31:06,546 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:06,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:06,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1989418720, now seen corresponding path program 1 times [2020-11-29 18:31:06,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:06,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749468105] [2020-11-29 18:31:06,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:06,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749468105] [2020-11-29 18:31:06,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:06,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:06,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042958536] [2020-11-29 18:31:06,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:31:06,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:06,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:31:06,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:31:06,784 INFO L87 Difference]: Start difference. First operand 1072 states and 1482 transitions. Second operand 4 states. [2020-11-29 18:31:08,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:08,556 INFO L93 Difference]: Finished difference Result 2498 states and 3366 transitions. [2020-11-29 18:31:08,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:31:08,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2020-11-29 18:31:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:08,567 INFO L225 Difference]: With dead ends: 2498 [2020-11-29 18:31:08,567 INFO L226 Difference]: Without dead ends: 1428 [2020-11-29 18:31:08,569 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 [2020-11-29 18:31:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-11-29 18:31:08,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1250. [2020-11-29 18:31:08,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-11-29 18:31:08,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1672 transitions. [2020-11-29 18:31:08,612 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1672 transitions. Word has length 109 [2020-11-29 18:31:08,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:08,613 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1672 transitions. [2020-11-29 18:31:08,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:31:08,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1672 transitions. [2020-11-29 18:31:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-11-29 18:31:08,618 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:08,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:08,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 18:31:08,619 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:08,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:08,620 INFO L82 PathProgramCache]: Analyzing trace with hash 545660926, now seen corresponding path program 1 times [2020-11-29 18:31:08,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:08,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869833249] [2020-11-29 18:31:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:08,848 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:08,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869833249] [2020-11-29 18:31:08,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:08,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:08,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434586152] [2020-11-29 18:31:08,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:31:08,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:08,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:31:08,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:31:08,853 INFO L87 Difference]: Start difference. First operand 1250 states and 1672 transitions. Second operand 4 states. [2020-11-29 18:31:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:09,970 INFO L93 Difference]: Finished difference Result 2885 states and 3777 transitions. [2020-11-29 18:31:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:31:09,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-11-29 18:31:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:09,981 INFO L225 Difference]: With dead ends: 2885 [2020-11-29 18:31:09,981 INFO L226 Difference]: Without dead ends: 1608 [2020-11-29 18:31:09,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:31:09,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2020-11-29 18:31:10,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1606. [2020-11-29 18:31:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-11-29 18:31:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1889 transitions. [2020-11-29 18:31:10,033 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1889 transitions. Word has length 120 [2020-11-29 18:31:10,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:10,034 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1889 transitions. [2020-11-29 18:31:10,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:31:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1889 transitions. [2020-11-29 18:31:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-11-29 18:31:10,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:10,038 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:10,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 18:31:10,054 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:10,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:10,055 INFO L82 PathProgramCache]: Analyzing trace with hash -840710516, now seen corresponding path program 1 times [2020-11-29 18:31:10,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:10,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039852737] [2020-11-29 18:31:10,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:31:10,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039852737] [2020-11-29 18:31:10,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:10,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:10,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911048882] [2020-11-29 18:31:10,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:10,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:10,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:10,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:10,294 INFO L87 Difference]: Start difference. First operand 1606 states and 1889 transitions. Second operand 3 states. [2020-11-29 18:31:11,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:11,253 INFO L93 Difference]: Finished difference Result 3744 states and 4424 transitions. [2020-11-29 18:31:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:11,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-11-29 18:31:11,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:11,269 INFO L225 Difference]: With dead ends: 3744 [2020-11-29 18:31:11,269 INFO L226 Difference]: Without dead ends: 2140 [2020-11-29 18:31:11,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:11,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-11-29 18:31:11,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-11-29 18:31:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-11-29 18:31:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2463 transitions. [2020-11-29 18:31:11,325 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2463 transitions. Word has length 214 [2020-11-29 18:31:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:11,326 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2463 transitions. [2020-11-29 18:31:11,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2463 transitions. [2020-11-29 18:31:11,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-11-29 18:31:11,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:11,333 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, 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, 2, 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] [2020-11-29 18:31:11,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 18:31:11,333 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:11,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:11,334 INFO L82 PathProgramCache]: Analyzing trace with hash -898947001, now seen corresponding path program 1 times [2020-11-29 18:31:11,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:11,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854185550] [2020-11-29 18:31:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-11-29 18:31:11,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854185550] [2020-11-29 18:31:11,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:11,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:11,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675035757] [2020-11-29 18:31:11,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 18:31:11,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:11,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:31:11,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:31:11,793 INFO L87 Difference]: Start difference. First operand 2140 states and 2463 transitions. Second operand 4 states. [2020-11-29 18:31:12,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:12,974 INFO L93 Difference]: Finished difference Result 4336 states and 5006 transitions. [2020-11-29 18:31:12,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:31:12,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2020-11-29 18:31:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:12,989 INFO L225 Difference]: With dead ends: 4336 [2020-11-29 18:31:12,990 INFO L226 Difference]: Without dead ends: 2318 [2020-11-29 18:31:12,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:31:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2020-11-29 18:31:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2020-11-29 18:31:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-11-29 18:31:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2360 transitions. [2020-11-29 18:31:13,041 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2360 transitions. Word has length 331 [2020-11-29 18:31:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:13,042 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2360 transitions. [2020-11-29 18:31:13,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 18:31:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2360 transitions. [2020-11-29 18:31:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-11-29 18:31:13,050 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:13,051 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:13,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 18:31:13,051 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:13,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:13,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1633624003, now seen corresponding path program 1 times [2020-11-29 18:31:13,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:13,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194729509] [2020-11-29 18:31:13,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 18:31:13,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194729509] [2020-11-29 18:31:13,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:13,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:13,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203923735] [2020-11-29 18:31:13,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:13,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:13,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:13,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:13,463 INFO L87 Difference]: Start difference. First operand 2140 states and 2360 transitions. Second operand 3 states. [2020-11-29 18:31:14,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:14,271 INFO L93 Difference]: Finished difference Result 4456 states and 4944 transitions. [2020-11-29 18:31:14,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:14,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 420 [2020-11-29 18:31:14,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:14,285 INFO L225 Difference]: With dead ends: 4456 [2020-11-29 18:31:14,286 INFO L226 Difference]: Without dead ends: 2496 [2020-11-29 18:31:14,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-11-29 18:31:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2318. [2020-11-29 18:31:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-29 18:31:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2554 transitions. [2020-11-29 18:31:14,344 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2554 transitions. Word has length 420 [2020-11-29 18:31:14,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:14,346 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2554 transitions. [2020-11-29 18:31:14,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:14,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2554 transitions. [2020-11-29 18:31:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2020-11-29 18:31:14,355 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:14,355 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-29 18:31:14,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 18:31:14,356 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:14,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:14,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1926639252, now seen corresponding path program 1 times [2020-11-29 18:31:14,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:14,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183387867] [2020-11-29 18:31:14,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 18:31:14,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183387867] [2020-11-29 18:31:14,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:14,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:14,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724440620] [2020-11-29 18:31:14,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:14,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:14,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:14,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:14,823 INFO L87 Difference]: Start difference. First operand 2318 states and 2554 transitions. Second operand 3 states. [2020-11-29 18:31:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:15,638 INFO L93 Difference]: Finished difference Result 4990 states and 5544 transitions. [2020-11-29 18:31:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:15,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 426 [2020-11-29 18:31:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:15,657 INFO L225 Difference]: With dead ends: 4990 [2020-11-29 18:31:15,658 INFO L226 Difference]: Without dead ends: 2852 [2020-11-29 18:31:15,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:15,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-11-29 18:31:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2318. [2020-11-29 18:31:15,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2020-11-29 18:31:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2542 transitions. [2020-11-29 18:31:15,733 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2542 transitions. Word has length 426 [2020-11-29 18:31:15,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:15,734 INFO L481 AbstractCegarLoop]: Abstraction has 2318 states and 2542 transitions. [2020-11-29 18:31:15,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2542 transitions. [2020-11-29 18:31:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-11-29 18:31:15,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:15,747 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:15,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 18:31:15,748 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:15,748 INFO L82 PathProgramCache]: Analyzing trace with hash 862258857, now seen corresponding path program 1 times [2020-11-29 18:31:15,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:15,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954442914] [2020-11-29 18:31:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 18:31:16,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954442914] [2020-11-29 18:31:16,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:16,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:16,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55959795] [2020-11-29 18:31:16,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:16,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:16,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:16,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:16,162 INFO L87 Difference]: Start difference. First operand 2318 states and 2542 transitions. Second operand 3 states. [2020-11-29 18:31:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:17,106 INFO L93 Difference]: Finished difference Result 5168 states and 5725 transitions. [2020-11-29 18:31:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:17,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2020-11-29 18:31:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:17,124 INFO L225 Difference]: With dead ends: 5168 [2020-11-29 18:31:17,124 INFO L226 Difference]: Without dead ends: 3030 [2020-11-29 18:31:17,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-11-29 18:31:17,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2852. [2020-11-29 18:31:17,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-11-29 18:31:17,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3093 transitions. [2020-11-29 18:31:17,211 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3093 transitions. Word has length 433 [2020-11-29 18:31:17,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:17,212 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3093 transitions. [2020-11-29 18:31:17,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:17,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3093 transitions. [2020-11-29 18:31:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2020-11-29 18:31:17,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:17,218 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, 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, 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, 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] [2020-11-29 18:31:17,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 18:31:17,219 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:17,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash -895099328, now seen corresponding path program 1 times [2020-11-29 18:31:17,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:17,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786418600] [2020-11-29 18:31:17,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-11-29 18:31:17,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786418600] [2020-11-29 18:31:17,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:17,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:17,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137670858] [2020-11-29 18:31:17,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:17,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:17,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:17,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:17,793 INFO L87 Difference]: Start difference. First operand 2852 states and 3093 transitions. Second operand 3 states. [2020-11-29 18:31:18,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:18,761 INFO L93 Difference]: Finished difference Result 6058 states and 6632 transitions. [2020-11-29 18:31:18,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:18,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 588 [2020-11-29 18:31:18,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:18,784 INFO L225 Difference]: With dead ends: 6058 [2020-11-29 18:31:18,784 INFO L226 Difference]: Without dead ends: 3386 [2020-11-29 18:31:18,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2020-11-29 18:31:18,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2020-11-29 18:31:18,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-11-29 18:31:18,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3659 transitions. [2020-11-29 18:31:18,864 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3659 transitions. Word has length 588 [2020-11-29 18:31:18,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:18,866 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3659 transitions. [2020-11-29 18:31:18,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:18,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3659 transitions. [2020-11-29 18:31:18,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2020-11-29 18:31:18,872 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:18,873 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, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:18,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 18:31:18,873 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:18,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:18,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1321704781, now seen corresponding path program 1 times [2020-11-29 18:31:18,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:18,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589028547] [2020-11-29 18:31:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1101 backedges. 749 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2020-11-29 18:31:19,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589028547] [2020-11-29 18:31:19,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:31:19,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:31:19,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700111178] [2020-11-29 18:31:19,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:19,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:19,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:19,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:19,497 INFO L87 Difference]: Start difference. First operand 3386 states and 3659 transitions. Second operand 3 states. [2020-11-29 18:31:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:20,309 INFO L93 Difference]: Finished difference Result 7304 states and 7950 transitions. [2020-11-29 18:31:20,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:20,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 606 [2020-11-29 18:31:20,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:20,333 INFO L225 Difference]: With dead ends: 7304 [2020-11-29 18:31:20,333 INFO L226 Difference]: Without dead ends: 4098 [2020-11-29 18:31:20,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:31:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-11-29 18:31:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-11-29 18:31:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-11-29 18:31:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4235 transitions. [2020-11-29 18:31:20,416 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4235 transitions. Word has length 606 [2020-11-29 18:31:20,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:20,417 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4235 transitions. [2020-11-29 18:31:20,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4235 transitions. [2020-11-29 18:31:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-11-29 18:31:20,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:20,425 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, 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, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:20,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 18:31:20,425 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:20,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:20,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1577866893, now seen corresponding path program 1 times [2020-11-29 18:31:20,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:20,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357447668] [2020-11-29 18:31:20,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 832 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-11-29 18:31:21,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357447668] [2020-11-29 18:31:21,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720361828] [2020-11-29 18:31:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:31:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:21,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:31:21,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:31:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1256 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-11-29 18:31:21,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:31:21,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 18:31:21,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367355438] [2020-11-29 18:31:21,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:21,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:21,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:21,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:21,859 INFO L87 Difference]: Start difference. First operand 3920 states and 4235 transitions. Second operand 3 states. [2020-11-29 18:31:22,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:22,979 INFO L93 Difference]: Finished difference Result 9084 states and 9804 transitions. [2020-11-29 18:31:22,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:22,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2020-11-29 18:31:22,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:23,020 INFO L225 Difference]: With dead ends: 9084 [2020-11-29 18:31:23,027 INFO L226 Difference]: Without dead ends: 4454 [2020-11-29 18:31:23,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:23,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2020-11-29 18:31:23,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2020-11-29 18:31:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-11-29 18:31:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4207 transitions. [2020-11-29 18:31:23,121 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4207 transitions. Word has length 629 [2020-11-29 18:31:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:23,122 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4207 transitions. [2020-11-29 18:31:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4207 transitions. [2020-11-29 18:31:23,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2020-11-29 18:31:23,133 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:23,134 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:23,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-29 18:31:23,349 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:23,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1651836789, now seen corresponding path program 1 times [2020-11-29 18:31:23,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:23,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124130331] [2020-11-29 18:31:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:24,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 1319 proven. 155 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2020-11-29 18:31:24,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124130331] [2020-11-29 18:31:24,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064088184] [2020-11-29 18:31:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:31:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:24,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 998 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:31:24,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:31:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1826 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 1599 trivial. 0 not checked. [2020-11-29 18:31:25,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:31:25,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 18:31:25,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575095825] [2020-11-29 18:31:25,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:25,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:25,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:25,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:25,070 INFO L87 Difference]: Start difference. First operand 3920 states and 4207 transitions. Second operand 3 states. [2020-11-29 18:31:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:25,704 INFO L93 Difference]: Finished difference Result 8550 states and 9169 transitions. [2020-11-29 18:31:25,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:25,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 791 [2020-11-29 18:31:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:25,722 INFO L225 Difference]: With dead ends: 8550 [2020-11-29 18:31:25,723 INFO L226 Difference]: Without dead ends: 3564 [2020-11-29 18:31:25,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 791 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:25,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-11-29 18:31:25,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3208. [2020-11-29 18:31:25,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-11-29 18:31:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3412 transitions. [2020-11-29 18:31:25,830 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3412 transitions. Word has length 791 [2020-11-29 18:31:25,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:25,831 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3412 transitions. [2020-11-29 18:31:25,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3412 transitions. [2020-11-29 18:31:25,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-11-29 18:31:25,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 18:31:25,842 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, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:31:26,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-11-29 18:31:26,057 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 18:31:26,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:31:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1656295860, now seen corresponding path program 1 times [2020-11-29 18:31:26,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:31:26,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949107747] [2020-11-29 18:31:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:31:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 1404 proven. 155 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2020-11-29 18:31:27,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949107747] [2020-11-29 18:31:27,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380691507] [2020-11-29 18:31:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:31:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:31:27,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1022 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:31:27,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:31:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1911 backedges. 758 proven. 0 refuted. 0 times theorem prover too weak. 1153 trivial. 0 not checked. [2020-11-29 18:31:27,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:31:27,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-11-29 18:31:27,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388137540] [2020-11-29 18:31:27,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 18:31:27,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:31:27,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:31:27,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:27,771 INFO L87 Difference]: Start difference. First operand 3208 states and 3412 transitions. Second operand 3 states. [2020-11-29 18:31:28,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:31:28,467 INFO L93 Difference]: Finished difference Result 6234 states and 6642 transitions. [2020-11-29 18:31:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:31:28,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 817 [2020-11-29 18:31:28,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 18:31:28,469 INFO L225 Difference]: With dead ends: 6234 [2020-11-29 18:31:28,469 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 18:31:28,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:31:28,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 18:31:28,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 18:31:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 18:31:28,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 18:31:28,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 817 [2020-11-29 18:31:28,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 18:31:28,478 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:31:28,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 18:31:28,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:31:28,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 18:31:28,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-11-29 18:31:28,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 18:31:28,900 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-29 18:31:29,019 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,029 INFO L274 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,030 INFO L274 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,031 INFO L274 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,032 INFO L274 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,033 INFO L274 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,034 INFO L274 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,035 INFO L274 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-11-29 18:31:29,036 INFO L274 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-11-29 18:31:29,041 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-11-29 18:31:29,042 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-11-29 18:31:29,043 INFO L274 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-11-29 18:31:29,044 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,045 INFO L274 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-11-29 18:31:29,046 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,047 INFO L274 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-11-29 18:31:29,048 INFO L274 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-11-29 18:31:29,049 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-11-29 18:31:29,050 INFO L274 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-11-29 18:31:29,051 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,052 INFO L274 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-11-29 18:31:29,053 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-11-29 18:31:29,054 INFO L274 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-11-29 18:31:29,055 INFO L274 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-11-29 18:31:29,056 INFO L274 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-11-29 18:31:29,057 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,058 INFO L274 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,060 INFO L270 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a15~0 5) (<= (+ ~a12~0 49) 0)) (and (<= ~a15~0 7) .cse0) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse0) (and .cse0 (<= 9 ~a15~0)) (and (<= 518246 ~a12~0) .cse0) (and (<= 7 ~a21~0) .cse0))) [2020-11-29 18:31:29,060 INFO L274 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-11-29 18:31:29,061 INFO L274 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L277 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-11-29 18:31:29,062 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,063 INFO L274 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-11-29 18:31:29,064 INFO L274 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-11-29 18:31:29,065 INFO L274 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,065 INFO L274 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,065 INFO L274 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-11-29 18:31:29,065 INFO L274 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,065 INFO L274 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-11-29 18:31:29,066 INFO L270 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= ~a24~0 1))) (or (and (<= ~a15~0 5) (<= (+ ~a12~0 49) 0)) (and (<= ~a15~0 7) .cse0) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse0) (and .cse0 (<= 9 ~a15~0)) (and (<= 518246 ~a12~0) .cse0) (and (<= 7 ~a21~0) .cse0))) [2020-11-29 18:31:29,066 INFO L274 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-11-29 18:31:29,066 INFO L274 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-11-29 18:31:29,066 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-11-29 18:31:29,066 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-11-29 18:31:29,066 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,067 INFO L274 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-11-29 18:31:29,068 INFO L274 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-11-29 18:31:29,068 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-11-29 18:31:29,068 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-11-29 18:31:29,069 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-11-29 18:31:29,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:31:29 BoogieIcfgContainer [2020-11-29 18:31:29,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 18:31:29,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:31:29,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:31:29,103 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:31:29,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:01" (3/4) ... [2020-11-29 18:31:29,108 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 18:31:29,143 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 18:31:29,145 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 18:31:29,146 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:31:29,148 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 18:31:29,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_29d32799-6def-4f2f-a333-5b37ebd0ba39/bin/uautomizer/witness.graphml [2020-11-29 18:31:29,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:31:29,401 INFO L168 Benchmark]: Toolchain (without parser) took 31763.97 ms. Allocated memory was 94.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 61.7 MB in the beginning and 887.2 MB in the end (delta: -825.5 MB). Peak memory consumption was 230.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,402 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:31:29,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 915.63 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 50.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.30 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 40.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,403 INFO L168 Benchmark]: Boogie Preprocessor took 151.42 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 40.8 MB in the beginning and 85.2 MB in the end (delta: -44.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,403 INFO L168 Benchmark]: RCFGBuilder took 2183.67 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 49.0 MB in the end (delta: 35.5 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,404 INFO L168 Benchmark]: TraceAbstraction took 28060.71 ms. Allocated memory was 113.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 48.3 MB in the beginning and 906.1 MB in the end (delta: -857.8 MB). Peak memory consumption was 179.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,405 INFO L168 Benchmark]: Witness Printer took 297.88 ms. Allocated memory is still 1.2 GB. Free memory was 906.1 MB in the beginning and 887.2 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:31:29,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 94.4 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 915.63 ms. Allocated memory is still 94.4 MB. Free memory was 61.5 MB in the beginning and 50.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 143.30 ms. Allocated memory is still 94.4 MB. Free memory was 50.3 MB in the beginning and 40.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.42 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 40.8 MB in the beginning and 85.2 MB in the end (delta: -44.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2183.67 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 49.0 MB in the end (delta: 35.5 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28060.71 ms. Allocated memory was 113.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 48.3 MB in the beginning and 906.1 MB in the end (delta: -857.8 MB). Peak memory consumption was 179.7 MB. Max. memory is 16.1 GB. * Witness Printer took 297.88 ms. Allocated memory is still 1.2 GB. Free memory was 906.1 MB in the beginning and 887.2 MB 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: (((((a15 <= 5 && a12 + 49 <= 0) || (a15 <= 7 && a24 == 1)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || (a24 == 1 && 9 <= a15)) || (518246 <= a12 && a24 == 1)) || (7 <= a21 && a24 == 1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((a15 <= 5 && a12 + 49 <= 0) || (a15 <= 7 && a24 == 1)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || (a24 == 1 && 9 <= a15)) || (518246 <= a12 && a24 == 1)) || (7 <= a21 && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 27.5s, OverallIterations: 15, TraceHistogramMax: 7, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2314 SDtfs, 2089 SDslu, 85 SDs, 0 SdLazy, 7552 SolverSat, 1017 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2280 GetRequests, 2255 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3920occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 15 MinimizatonAttempts, 2318 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 71 NumberOfFragments, 101 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1962 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 7972 NumberOfCodeBlocks, 7972 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7954 ConstructedInterpolants, 0 QuantifiedInterpolants, 8622612 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 14204/14624 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...