./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label31.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label31.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 c1c6940c34ec92791c1eb8c94ce954a417f79fe0 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:30:09,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:30:09,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:30:09,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:30:09,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:30:09,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:30:09,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:30:09,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:30:09,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:30:09,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:30:09,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:30:09,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:30:09,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:30:09,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:30:09,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:30:09,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:30:09,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:30:09,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:30:09,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:30:09,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:30:09,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:30:09,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:30:09,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:30:09,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:30:09,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:30:09,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:30:09,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:30:09,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:30:09,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:30:09,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:30:09,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:30:09,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:30:09,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:30:09,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:30:09,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:30:09,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:30:09,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:30:09,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:30:09,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:30:09,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:30:09,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:30:09,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:30:09,223 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:30:09,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:30:09,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:30:09,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:30:09,225 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:30:09,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:30:09,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:30:09,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:30:09,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:30:09,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:30:09,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:30:09,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:30:09,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:30:09,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:30:09,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:30:09,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:30:09,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:30:09,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:30:09,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:30:09,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:30:09,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:30:09,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:30:09,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:30:09,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:30:09,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:30:09,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:30:09,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:30:09,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:30:09,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:30:09,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> c1c6940c34ec92791c1eb8c94ce954a417f79fe0 [2020-10-19 22:30:09,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:30:09,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:30:09,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:30:09,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:30:09,463 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:30:09,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2020-10-19 22:30:09,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dcf26c6/42f6be12777a4255b5e52dc5ebdb90f2/FLAG4060e4236 [2020-10-19 22:30:10,136 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:30:10,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label31.c [2020-10-19 22:30:10,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dcf26c6/42f6be12777a4255b5e52dc5ebdb90f2/FLAG4060e4236 [2020-10-19 22:30:10,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42dcf26c6/42f6be12777a4255b5e52dc5ebdb90f2 [2020-10-19 22:30:10,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:30:10,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:30:10,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:30:10,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:30:10,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:30:10,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e78ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:10, skipping insertion in model container [2020-10-19 22:30:10,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:30:10" (1/1) ... [2020-10-19 22:30:10,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:30:10,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:30:11,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:11,091 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:30:11,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:30:11,266 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:30:11,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11 WrapperNode [2020-10-19 22:30:11,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:30:11,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:11,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:30:11,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:30:11,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:30:11,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:30:11,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:30:11,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:30:11,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... [2020-10-19 22:30:11,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:30:11,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:30:11,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:30:11,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:30:11,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:30:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:30:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:30:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:30:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:30:12,831 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:30:12,831 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:30:12,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:12 BoogieIcfgContainer [2020-10-19 22:30:12,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:30:12,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:30:12,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:30:12,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:30:12,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:30:10" (1/3) ... [2020-10-19 22:30:12,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493a7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:12, skipping insertion in model container [2020-10-19 22:30:12,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:30:11" (2/3) ... [2020-10-19 22:30:12,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493a7c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:30:12, skipping insertion in model container [2020-10-19 22:30:12,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:12" (3/3) ... [2020-10-19 22:30:12,857 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label31.c [2020-10-19 22:30:12,869 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:30:12,877 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:30:12,891 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:30:12,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:30:12,918 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:30:12,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:30:12,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:30:12,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:30:12,919 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:30:12,919 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:30:12,919 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:30:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-10-19 22:30:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-19 22:30:12,951 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:12,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:12,953 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash 779606815, now seen corresponding path program 1 times [2020-10-19 22:30:12,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:12,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043084620] [2020-10-19 22:30:12,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:13,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043084620] [2020-10-19 22:30:13,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:13,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:13,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673329087] [2020-10-19 22:30:13,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:13,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:13,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:13,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:13,549 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 3 states. [2020-10-19 22:30:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:14,434 INFO L93 Difference]: Finished difference Result 529 states and 916 transitions. [2020-10-19 22:30:14,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:14,436 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-10-19 22:30:14,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:14,452 INFO L225 Difference]: With dead ends: 529 [2020-10-19 22:30:14,452 INFO L226 Difference]: Without dead ends: 266 [2020-10-19 22:30:14,456 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 [2020-10-19 22:30:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-19 22:30:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-19 22:30:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-19 22:30:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2020-10-19 22:30:14,515 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 92 [2020-10-19 22:30:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:14,516 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2020-10-19 22:30:14,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:14,517 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2020-10-19 22:30:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-19 22:30:14,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:14,521 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:14,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:30:14,522 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:14,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:14,523 INFO L82 PathProgramCache]: Analyzing trace with hash -101775751, now seen corresponding path program 1 times [2020-10-19 22:30:14,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:14,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365045715] [2020-10-19 22:30:14,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:14,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365045715] [2020-10-19 22:30:14,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:14,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:14,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585487486] [2020-10-19 22:30:14,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:14,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:14,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:14,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:14,609 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand 3 states. [2020-10-19 22:30:15,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:15,177 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2020-10-19 22:30:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:15,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-10-19 22:30:15,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:15,183 INFO L225 Difference]: With dead ends: 792 [2020-10-19 22:30:15,183 INFO L226 Difference]: Without dead ends: 528 [2020-10-19 22:30:15,185 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 [2020-10-19 22:30:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-19 22:30:15,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2020-10-19 22:30:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2020-10-19 22:30:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2020-10-19 22:30:15,221 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 97 [2020-10-19 22:30:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:15,222 INFO L481 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2020-10-19 22:30:15,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2020-10-19 22:30:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:30:15,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:15,229 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:15,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:30:15,229 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:15,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:15,230 INFO L82 PathProgramCache]: Analyzing trace with hash -492072032, now seen corresponding path program 1 times [2020-10-19 22:30:15,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:15,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635907253] [2020-10-19 22:30:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:30:15,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635907253] [2020-10-19 22:30:15,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:15,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:15,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823317346] [2020-10-19 22:30:15,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:15,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:15,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:15,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:15,392 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand 3 states. [2020-10-19 22:30:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:15,971 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2020-10-19 22:30:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:15,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:30:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:15,978 INFO L225 Difference]: With dead ends: 1447 [2020-10-19 22:30:15,979 INFO L226 Difference]: Without dead ends: 921 [2020-10-19 22:30:15,982 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 [2020-10-19 22:30:15,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-10-19 22:30:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2020-10-19 22:30:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-10-19 22:30:16,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1043 transitions. [2020-10-19 22:30:16,038 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1043 transitions. Word has length 107 [2020-10-19 22:30:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:16,039 INFO L481 AbstractCegarLoop]: Abstraction has 790 states and 1043 transitions. [2020-10-19 22:30:16,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1043 transitions. [2020-10-19 22:30:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-19 22:30:16,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:16,048 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:16,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:30:16,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:16,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1125093710, now seen corresponding path program 1 times [2020-10-19 22:30:16,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:16,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108580730] [2020-10-19 22:30:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 22:30:16,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108580730] [2020-10-19 22:30:16,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:16,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:16,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288139181] [2020-10-19 22:30:16,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:16,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:16,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:16,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:16,157 INFO L87 Difference]: Start difference. First operand 790 states and 1043 transitions. Second operand 3 states. [2020-10-19 22:30:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:16,760 INFO L93 Difference]: Finished difference Result 1840 states and 2437 transitions. [2020-10-19 22:30:16,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:16,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-10-19 22:30:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:16,770 INFO L225 Difference]: With dead ends: 1840 [2020-10-19 22:30:16,770 INFO L226 Difference]: Without dead ends: 1052 [2020-10-19 22:30:16,772 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 [2020-10-19 22:30:16,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-19 22:30:16,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 921. [2020-10-19 22:30:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-10-19 22:30:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1186 transitions. [2020-10-19 22:30:16,804 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1186 transitions. Word has length 108 [2020-10-19 22:30:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:16,804 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1186 transitions. [2020-10-19 22:30:16,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1186 transitions. [2020-10-19 22:30:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-19 22:30:16,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:16,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:16,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:30:16,808 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:16,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:16,808 INFO L82 PathProgramCache]: Analyzing trace with hash 947749128, now seen corresponding path program 1 times [2020-10-19 22:30:16,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:16,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890169847] [2020-10-19 22:30:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:30:16,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890169847] [2020-10-19 22:30:16,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:16,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:30:16,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512917580] [2020-10-19 22:30:16,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:16,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:16,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:16,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:16,879 INFO L87 Difference]: Start difference. First operand 921 states and 1186 transitions. Second operand 3 states. [2020-10-19 22:30:17,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:17,421 INFO L93 Difference]: Finished difference Result 2102 states and 2723 transitions. [2020-10-19 22:30:17,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:17,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-10-19 22:30:17,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:17,428 INFO L225 Difference]: With dead ends: 2102 [2020-10-19 22:30:17,429 INFO L226 Difference]: Without dead ends: 1183 [2020-10-19 22:30:17,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:17,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-10-19 22:30:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2020-10-19 22:30:17,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-10-19 22:30:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1491 transitions. [2020-10-19 22:30:17,466 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1491 transitions. Word has length 112 [2020-10-19 22:30:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:17,466 INFO L481 AbstractCegarLoop]: Abstraction has 1183 states and 1491 transitions. [2020-10-19 22:30:17,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1491 transitions. [2020-10-19 22:30:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-19 22:30:17,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:17,470 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:17,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:30:17,471 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:17,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:17,471 INFO L82 PathProgramCache]: Analyzing trace with hash 728399346, now seen corresponding path program 1 times [2020-10-19 22:30:17,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:17,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641926006] [2020-10-19 22:30:17,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-19 22:30:17,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641926006] [2020-10-19 22:30:17,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:17,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:17,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111988683] [2020-10-19 22:30:17,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:17,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:17,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:17,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:17,657 INFO L87 Difference]: Start difference. First operand 1183 states and 1491 transitions. Second operand 4 states. [2020-10-19 22:30:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:18,512 INFO L93 Difference]: Finished difference Result 2888 states and 3612 transitions. [2020-10-19 22:30:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:18,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2020-10-19 22:30:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:18,521 INFO L225 Difference]: With dead ends: 2888 [2020-10-19 22:30:18,521 INFO L226 Difference]: Without dead ends: 1707 [2020-10-19 22:30:18,523 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 [2020-10-19 22:30:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2020-10-19 22:30:18,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2020-10-19 22:30:18,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2020-10-19 22:30:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1950 transitions. [2020-10-19 22:30:18,562 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1950 transitions. Word has length 141 [2020-10-19 22:30:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:18,562 INFO L481 AbstractCegarLoop]: Abstraction has 1576 states and 1950 transitions. [2020-10-19 22:30:18,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:18,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1950 transitions. [2020-10-19 22:30:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-19 22:30:18,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:18,566 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:18,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:30:18,567 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:18,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:18,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1160222521, now seen corresponding path program 1 times [2020-10-19 22:30:18,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:18,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998147648] [2020-10-19 22:30:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 22:30:18,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998147648] [2020-10-19 22:30:18,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221848999] [2020-10-19 22:30:18,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:30:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:18,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:18,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:30:19,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:19,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:30:19,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242159444] [2020-10-19 22:30:19,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:19,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:19,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:19,053 INFO L87 Difference]: Start difference. First operand 1576 states and 1950 transitions. Second operand 3 states. [2020-10-19 22:30:19,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:19,820 INFO L93 Difference]: Finished difference Result 2495 states and 3032 transitions. [2020-10-19 22:30:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:19,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-10-19 22:30:19,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:19,833 INFO L225 Difference]: With dead ends: 2495 [2020-10-19 22:30:19,834 INFO L226 Difference]: Without dead ends: 2493 [2020-10-19 22:30:19,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-19 22:30:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 2493. [2020-10-19 22:30:19,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2493 states. [2020-10-19 22:30:19,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3029 transitions. [2020-10-19 22:30:19,910 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3029 transitions. Word has length 158 [2020-10-19 22:30:19,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:19,911 INFO L481 AbstractCegarLoop]: Abstraction has 2493 states and 3029 transitions. [2020-10-19 22:30:19,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:19,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3029 transitions. [2020-10-19 22:30:19,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-19 22:30:19,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:19,922 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:20,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-19 22:30:20,137 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:20,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:20,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1677620763, now seen corresponding path program 1 times [2020-10-19 22:30:20,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:20,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6278862] [2020-10-19 22:30:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:30:20,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6278862] [2020-10-19 22:30:20,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:20,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:20,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193434141] [2020-10-19 22:30:20,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:20,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:20,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:20,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:20,260 INFO L87 Difference]: Start difference. First operand 2493 states and 3029 transitions. Second operand 3 states. [2020-10-19 22:30:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:20,850 INFO L93 Difference]: Finished difference Result 5639 states and 6837 transitions. [2020-10-19 22:30:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:20,851 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-10-19 22:30:20,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:20,866 INFO L225 Difference]: With dead ends: 5639 [2020-10-19 22:30:20,867 INFO L226 Difference]: Without dead ends: 2886 [2020-10-19 22:30:20,871 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 [2020-10-19 22:30:20,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-10-19 22:30:20,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-10-19 22:30:20,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-19 22:30:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3202 transitions. [2020-10-19 22:30:20,966 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3202 transitions. Word has length 183 [2020-10-19 22:30:20,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:20,967 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3202 transitions. [2020-10-19 22:30:20,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:20,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3202 transitions. [2020-10-19 22:30:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-19 22:30:20,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:20,975 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:20,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:30:20,975 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:20,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:20,976 INFO L82 PathProgramCache]: Analyzing trace with hash 603538606, now seen corresponding path program 1 times [2020-10-19 22:30:20,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:20,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263482694] [2020-10-19 22:30:20,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 143 proven. 6 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-19 22:30:21,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263482694] [2020-10-19 22:30:21,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273407531] [2020-10-19 22:30:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:30:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:21,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:21,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:30:21,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:21,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:30:21,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281850290] [2020-10-19 22:30:21,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:21,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:21,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:21,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:21,324 INFO L87 Difference]: Start difference. First operand 2886 states and 3202 transitions. Second operand 3 states. [2020-10-19 22:30:21,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:21,991 INFO L93 Difference]: Finished difference Result 5770 states and 6402 transitions. [2020-10-19 22:30:21,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:21,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-10-19 22:30:21,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:22,006 INFO L225 Difference]: With dead ends: 5770 [2020-10-19 22:30:22,006 INFO L226 Difference]: Without dead ends: 2886 [2020-10-19 22:30:22,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-10-19 22:30:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2755. [2020-10-19 22:30:22,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-10-19 22:30:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3016 transitions. [2020-10-19 22:30:22,116 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3016 transitions. Word has length 197 [2020-10-19 22:30:22,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:22,117 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 3016 transitions. [2020-10-19 22:30:22,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:22,117 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3016 transitions. [2020-10-19 22:30:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-19 22:30:22,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:22,125 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-19 22:30:22,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:30:22,339 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:22,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:22,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1530705844, now seen corresponding path program 1 times [2020-10-19 22:30:22,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:22,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013391113] [2020-10-19 22:30:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 161 proven. 6 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-19 22:30:22,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013391113] [2020-10-19 22:30:22,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75110253] [2020-10-19 22:30:22,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 22:30:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:22,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:22,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:22,771 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 213 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-19 22:30:22,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:22,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:30:22,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294065192] [2020-10-19 22:30:22,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:22,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:22,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:22,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:22,774 INFO L87 Difference]: Start difference. First operand 2755 states and 3016 transitions. Second operand 3 states. [2020-10-19 22:30:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:23,300 INFO L93 Difference]: Finished difference Result 5508 states and 6030 transitions. [2020-10-19 22:30:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:23,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 216 [2020-10-19 22:30:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:23,314 INFO L225 Difference]: With dead ends: 5508 [2020-10-19 22:30:23,314 INFO L226 Difference]: Without dead ends: 2755 [2020-10-19 22:30:23,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:23,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2020-10-19 22:30:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2755. [2020-10-19 22:30:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2755 states. [2020-10-19 22:30:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 2994 transitions. [2020-10-19 22:30:23,374 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 2994 transitions. Word has length 216 [2020-10-19 22:30:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:23,374 INFO L481 AbstractCegarLoop]: Abstraction has 2755 states and 2994 transitions. [2020-10-19 22:30:23,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 2994 transitions. [2020-10-19 22:30:23,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-19 22:30:23,381 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:23,382 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:30:23,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 22:30:23,595 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:23,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:23,596 INFO L82 PathProgramCache]: Analyzing trace with hash 248237854, now seen corresponding path program 1 times [2020-10-19 22:30:23,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:23,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890490673] [2020-10-19 22:30:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:23,745 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 166 proven. 6 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-19 22:30:23,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890490673] [2020-10-19 22:30:23,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068033058] [2020-10-19 22:30:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:30:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:23,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:30:23,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:30:23,919 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-19 22:30:23,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:30:23,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:30:23,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812055594] [2020-10-19 22:30:23,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:23,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:23,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:23,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:23,922 INFO L87 Difference]: Start difference. First operand 2755 states and 2994 transitions. Second operand 3 states. [2020-10-19 22:30:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:24,518 INFO L93 Difference]: Finished difference Result 5639 states and 6133 transitions. [2020-10-19 22:30:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:24,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-10-19 22:30:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:24,530 INFO L225 Difference]: With dead ends: 5639 [2020-10-19 22:30:24,530 INFO L226 Difference]: Without dead ends: 2886 [2020-10-19 22:30:24,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:30:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-10-19 22:30:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-10-19 22:30:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-19 22:30:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3110 transitions. [2020-10-19 22:30:24,587 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3110 transitions. Word has length 221 [2020-10-19 22:30:24,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:24,588 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3110 transitions. [2020-10-19 22:30:24,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3110 transitions. [2020-10-19 22:30:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-19 22:30:24,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:24,597 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:24,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:30:24,811 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:24,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:24,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1809591839, now seen corresponding path program 1 times [2020-10-19 22:30:24,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:24,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437700608] [2020-10-19 22:30:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:24,982 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-19 22:30:24,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437700608] [2020-10-19 22:30:24,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:24,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:24,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081797096] [2020-10-19 22:30:24,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:30:24,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:24,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:30:24,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:30:24,996 INFO L87 Difference]: Start difference. First operand 2886 states and 3110 transitions. Second operand 4 states. [2020-10-19 22:30:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:25,773 INFO L93 Difference]: Finished difference Result 6163 states and 6628 transitions. [2020-10-19 22:30:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:30:25,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2020-10-19 22:30:25,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:25,787 INFO L225 Difference]: With dead ends: 6163 [2020-10-19 22:30:25,787 INFO L226 Difference]: Without dead ends: 3279 [2020-10-19 22:30:25,792 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 [2020-10-19 22:30:25,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2020-10-19 22:30:25,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2886. [2020-10-19 22:30:25,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-19 22:30:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3090 transitions. [2020-10-19 22:30:25,857 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3090 transitions. Word has length 278 [2020-10-19 22:30:25,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:25,858 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3090 transitions. [2020-10-19 22:30:25,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:30:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3090 transitions. [2020-10-19 22:30:25,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2020-10-19 22:30:25,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:25,869 INFO L422 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:25,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:30:25,869 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:25,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:25,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1184758200, now seen corresponding path program 1 times [2020-10-19 22:30:25,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:25,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153226770] [2020-10-19 22:30:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 526 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2020-10-19 22:30:26,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153226770] [2020-10-19 22:30:26,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:26,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:26,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403776083] [2020-10-19 22:30:26,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:26,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:26,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:26,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:26,147 INFO L87 Difference]: Start difference. First operand 2886 states and 3090 transitions. Second operand 3 states. [2020-10-19 22:30:26,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:26,645 INFO L93 Difference]: Finished difference Result 6687 states and 7152 transitions. [2020-10-19 22:30:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:26,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 343 [2020-10-19 22:30:26,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:26,658 INFO L225 Difference]: With dead ends: 6687 [2020-10-19 22:30:26,658 INFO L226 Difference]: Without dead ends: 2886 [2020-10-19 22:30:26,663 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 [2020-10-19 22:30:26,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-10-19 22:30:26,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2886. [2020-10-19 22:30:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2020-10-19 22:30:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3053 transitions. [2020-10-19 22:30:26,708 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3053 transitions. Word has length 343 [2020-10-19 22:30:26,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:26,708 INFO L481 AbstractCegarLoop]: Abstraction has 2886 states and 3053 transitions. [2020-10-19 22:30:26,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:26,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3053 transitions. [2020-10-19 22:30:26,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2020-10-19 22:30:26,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:30:26,718 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:30:26,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:30:26,719 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:30:26,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:30:26,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1239829015, now seen corresponding path program 1 times [2020-10-19 22:30:26,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:30:26,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855451394] [2020-10-19 22:30:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:30:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:30:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-10-19 22:30:26,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855451394] [2020-10-19 22:30:26,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:30:26,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:30:26,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994716189] [2020-10-19 22:30:26,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:30:26,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:30:26,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:30:26,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:30:26,928 INFO L87 Difference]: Start difference. First operand 2886 states and 3053 transitions. Second operand 3 states. [2020-10-19 22:30:27,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:30:27,421 INFO L93 Difference]: Finished difference Result 4851 states and 5142 transitions. [2020-10-19 22:30:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:30:27,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2020-10-19 22:30:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:30:27,422 INFO L225 Difference]: With dead ends: 4851 [2020-10-19 22:30:27,422 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:30:27,426 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 [2020-10-19 22:30:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:30:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:30:27,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:30:27,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:30:27,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 355 [2020-10-19 22:30:27,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:30:27,427 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:30:27,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:30:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:30:27,428 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:30:27,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:30:27,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:30:27,628 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-10-19 22:30:27,779 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-10-19 22:30:27,783 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,783 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,783 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-19 22:30:27,784 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,785 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,786 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,786 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,786 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,786 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,786 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-19 22:30:27,787 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-19 22:30:27,788 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-19 22:30:27,789 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-19 22:30:27,790 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-19 22:30:27,791 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L270 CegarLoopResult]: At program point L576(lines 32 577) the Hoare annotation is: (let ((.cse3 (= ~a20~0 1)) (.cse4 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 14)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse6 (<= ~a16~0 5)) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 (<= ~a21~0 0)) (and .cse2 .cse0 .cse3 (<= 5 ~a16~0)) (and .cse2 (<= ~a16~0 4) .cse3 (= ~a17~0 1)) (and .cse2 .cse4 .cse3) (and .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse6 .cse5) (and .cse2 .cse1 .cse6 .cse5))) [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-19 22:30:27,792 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-19 22:30:27,793 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L277 CegarLoopResult]: At program point L579(lines 579 596) the Hoare annotation is: true [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-19 22:30:27,794 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,795 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-19 22:30:27,796 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,797 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse3 (= ~a20~0 1)) (.cse4 (<= ~a7~0 0)) (.cse0 (<= ~a8~0 14)) (.cse2 (= ~a21~0 1)) (.cse1 (= ~a7~0 1)) (.cse6 (<= ~a16~0 5)) (.cse5 (<= ~a20~0 0))) (or (and .cse0 .cse1 (<= ~a21~0 0)) (and .cse2 .cse0 .cse3 (<= 5 ~a16~0)) (and .cse2 (<= ~a16~0 4) .cse3 (= ~a17~0 1)) (and .cse2 .cse4 .cse3) (and .cse2 .cse4 .cse5) (and .cse0 .cse2 .cse6 .cse5) (and .cse2 .cse1 .cse6 .cse5))) [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-19 22:30:27,798 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-19 22:30:27,799 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-19 22:30:27,800 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-19 22:30:27,801 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-19 22:30:27,802 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-19 22:30:27,803 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-19 22:30:27,804 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-19 22:30:27,805 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-19 22:30:27,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:30:27 BoogieIcfgContainer [2020-10-19 22:30:27,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:30:27,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:30:27,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:30:27,828 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:30:27,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:30:12" (3/4) ... [2020-10-19 22:30:27,833 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:30:27,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:30:27,858 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:30:27,859 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:27,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:30:28,029 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:30:28,030 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:30:28,031 INFO L168 Benchmark]: Toolchain (without parser) took 17523.92 ms. Allocated memory was 39.8 MB in the beginning and 215.0 MB in the end (delta: 175.1 MB). Free memory was 15.4 MB in the beginning and 63.6 MB in the end (delta: -48.2 MB). Peak memory consumption was 126.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,032 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 27.1 kB). Peak memory consumption was 27.1 kB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.76 ms. Allocated memory was 39.8 MB in the beginning and 42.5 MB in the end (delta: 2.6 MB). Free memory was 14.5 MB in the beginning and 23.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.65 ms. Allocated memory is still 42.5 MB. Free memory was 23.3 MB in the beginning and 17.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,033 INFO L168 Benchmark]: Boogie Preprocessor took 69.88 ms. Allocated memory is still 42.5 MB. Free memory was 17.4 MB in the beginning and 12.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,034 INFO L168 Benchmark]: RCFGBuilder took 1395.91 ms. Allocated memory was 42.5 MB in the beginning and 51.9 MB in the end (delta: 9.4 MB). Free memory was 12.6 MB in the beginning and 10.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,034 INFO L168 Benchmark]: TraceAbstraction took 14978.15 ms. Allocated memory was 54.5 MB in the beginning and 215.0 MB in the end (delta: 160.4 MB). Free memory was 32.0 MB in the beginning and 82.4 MB in the end (delta: -50.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,035 INFO L168 Benchmark]: Witness Printer took 201.55 ms. Allocated memory is still 215.0 MB. Free memory was 82.4 MB in the beginning and 63.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:30:28,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.1 MB in the end (delta: 27.1 kB). Peak memory consumption was 27.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 752.76 ms. Allocated memory was 39.8 MB in the beginning and 42.5 MB in the end (delta: 2.6 MB). Free memory was 14.5 MB in the beginning and 23.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 99.65 ms. Allocated memory is still 42.5 MB. Free memory was 23.3 MB in the beginning and 17.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 69.88 ms. Allocated memory is still 42.5 MB. Free memory was 17.4 MB in the beginning and 12.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1395.91 ms. Allocated memory was 42.5 MB in the beginning and 51.9 MB in the end (delta: 9.4 MB). Free memory was 12.6 MB in the beginning and 10.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 14978.15 ms. Allocated memory was 54.5 MB in the beginning and 215.0 MB in the end (delta: 160.4 MB). Free memory was 32.0 MB in the beginning and 82.4 MB in the end (delta: -50.4 MB). Peak memory consumption was 110.1 MB. Max. memory is 14.3 GB. * Witness Printer took 201.55 ms. Allocated memory is still 215.0 MB. Free memory was 82.4 MB in the beginning and 63.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((a8 <= 14 && a7 == 1) && a21 <= 0) || (((a21 == 1 && a8 <= 14) && a20 == 1) && 5 <= a16)) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a7 <= 0) && a20 == 1)) || ((a21 == 1 && a7 <= 0) && a20 <= 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 5) && a20 <= 0)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && a20 <= 0) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((a8 <= 14 && a7 == 1) && a21 <= 0) || (((a21 == 1 && a8 <= 14) && a20 == 1) && 5 <= a16)) || (((a21 == 1 && a16 <= 4) && a20 == 1) && a17 == 1)) || ((a21 == 1 && a7 <= 0) && a20 == 1)) || ((a21 == 1 && a7 <= 0) && a20 <= 0)) || (((a8 <= 14 && a21 == 1) && a16 <= 5) && a20 <= 0)) || (((a21 == 1 && a7 == 1) && a16 <= 5) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 199 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.5s, OverallIterations: 14, TraceHistogramMax: 9, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1207 SDtfs, 2010 SDslu, 80 SDs, 0 SdLazy, 4806 SolverSat, 793 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 829 GetRequests, 801 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 917 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 55 NumberOfFragments, 167 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1644 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 190 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 3400 NumberOfCodeBlocks, 3400 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3382 ConstructedInterpolants, 0 QuantifiedInterpolants, 1281362 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1701 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 3835/3859 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...