./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label52.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/Problem11_label52.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 0cd300956fc9ca382989432de803db532495814b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:14:06,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:14:06,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:14:06,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:14:06,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:14:06,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:14:06,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:14:06,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:14:06,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:14:06,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:14:06,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:14:06,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:14:06,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:14:06,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:14:06,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:14:06,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:14:06,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:14:06,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:14:06,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:14:06,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:14:06,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:14:06,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:14:06,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:14:06,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:14:06,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:14:06,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:14:06,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:14:06,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:14:06,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:14:06,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:14:06,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:14:06,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:14:06,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:14:06,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:14:06,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:14:06,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:14:06,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:14:06,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:14:06,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:14:06,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:14:06,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:14:06,176 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:14:06,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:14:06,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:14:06,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:14:06,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:14:06,227 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:14:06,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:14:06,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:14:06,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:14:06,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:14:06,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:14:06,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:14:06,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:14:06,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:14:06,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:14:06,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:14:06,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:14:06,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:14:06,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:14:06,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:14:06,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:14:06,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:14:06,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:14:06,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:14:06,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:14:06,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:14:06,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:14:06,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:14:06,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:14:06,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:14:06,233 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 -> 0cd300956fc9ca382989432de803db532495814b [2020-10-19 23:14:06,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:14:06,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:14:06,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:14:06,460 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:14:06,463 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:14:06,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label52.c [2020-10-19 23:14:06,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd7cb9a22/9769ae2aa3824f999be32f5e0fef796a/FLAG4afec0f00 [2020-10-19 23:14:07,184 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:14:07,186 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label52.c [2020-10-19 23:14:07,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd7cb9a22/9769ae2aa3824f999be32f5e0fef796a/FLAG4afec0f00 [2020-10-19 23:14:07,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd7cb9a22/9769ae2aa3824f999be32f5e0fef796a [2020-10-19 23:14:07,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:14:07,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:14:07,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:14:07,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:14:07,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:14:07,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:14:07" (1/1) ... [2020-10-19 23:14:07,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ebfafa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:07, skipping insertion in model container [2020-10-19 23:14:07,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:14:07" (1/1) ... [2020-10-19 23:14:07,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:14:07,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:14:08,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:14:08,205 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:14:08,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:14:08,491 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:14:08,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08 WrapperNode [2020-10-19 23:14:08,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:14:08,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:14:08,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:14:08,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:14:08,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:14:08,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:14:08,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:14:08,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:14:08,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (1/1) ... [2020-10-19 23:14:08,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:14:08,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:14:08,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:14:08,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:14:08,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (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 23:14:09,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:14:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:14:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:14:09,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:14:11,169 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:14:11,169 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:14:11,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:11 BoogieIcfgContainer [2020-10-19 23:14:11,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:14:11,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:14:11,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:14:11,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:14:11,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:14:07" (1/3) ... [2020-10-19 23:14:11,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d717bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:14:11, skipping insertion in model container [2020-10-19 23:14:11,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:14:08" (2/3) ... [2020-10-19 23:14:11,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d717bfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:14:11, skipping insertion in model container [2020-10-19 23:14:11,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:11" (3/3) ... [2020-10-19 23:14:11,188 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label52.c [2020-10-19 23:14:11,204 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:14:11,216 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:14:11,235 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:14:11,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:14:11,283 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:14:11,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:14:11,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:14:11,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:14:11,284 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:14:11,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:14:11,285 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:14:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-19 23:14:11,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-19 23:14:11,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:11,334 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] [2020-10-19 23:14:11,334 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:11,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2020-10-19 23:14:11,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:11,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747519383] [2020-10-19 23:14:11,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:11,770 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 23:14:11,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747519383] [2020-10-19 23:14:11,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:11,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:11,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218146169] [2020-10-19 23:14:11,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:11,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:11,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:11,800 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-19 23:14:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:13,367 INFO L93 Difference]: Finished difference Result 762 states and 1346 transitions. [2020-10-19 23:14:13,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:13,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-19 23:14:13,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:13,388 INFO L225 Difference]: With dead ends: 762 [2020-10-19 23:14:13,388 INFO L226 Difference]: Without dead ends: 413 [2020-10-19 23:14:13,393 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 23:14:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-19 23:14:13,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2020-10-19 23:14:13,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-10-19 23:14:13,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2020-10-19 23:14:13,473 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 52 [2020-10-19 23:14:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:13,473 INFO L481 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2020-10-19 23:14:13,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:13,474 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2020-10-19 23:14:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-19 23:14:13,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:13,483 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:14:13,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:14:13,484 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:13,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1273625574, now seen corresponding path program 1 times [2020-10-19 23:14:13,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:13,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080791650] [2020-10-19 23:14:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:13,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080791650] [2020-10-19 23:14:13,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:13,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:13,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962185905] [2020-10-19 23:14:13,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:13,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:13,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:13,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:13,627 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand 3 states. [2020-10-19 23:14:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:14,820 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2020-10-19 23:14:14,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:14,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-10-19 23:14:14,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:14,828 INFO L225 Difference]: With dead ends: 1211 [2020-10-19 23:14:14,828 INFO L226 Difference]: Without dead ends: 800 [2020-10-19 23:14:14,831 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 23:14:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2020-10-19 23:14:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2020-10-19 23:14:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-10-19 23:14:14,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-10-19 23:14:14,881 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 120 [2020-10-19 23:14:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:14,881 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-10-19 23:14:14,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-10-19 23:14:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-19 23:14:14,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:14,885 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 23:14:14,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:14:14,886 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:14,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1123801205, now seen corresponding path program 1 times [2020-10-19 23:14:14,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:14,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112594372] [2020-10-19 23:14:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:15,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112594372] [2020-10-19 23:14:15,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:15,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:15,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480396068] [2020-10-19 23:14:15,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:15,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:15,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:15,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:15,049 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-10-19 23:14:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:16,288 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-10-19 23:14:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:16,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-10-19 23:14:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:16,298 INFO L225 Difference]: With dead ends: 2314 [2020-10-19 23:14:16,298 INFO L226 Difference]: Without dead ends: 1527 [2020-10-19 23:14:16,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-10-19 23:14:16,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-10-19 23:14:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-10-19 23:14:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-10-19 23:14:16,342 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 122 [2020-10-19 23:14:16,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:16,342 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-10-19 23:14:16,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-10-19 23:14:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-19 23:14:16,347 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:16,348 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:16,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:14:16,349 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:16,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:16,349 INFO L82 PathProgramCache]: Analyzing trace with hash 290402297, now seen corresponding path program 1 times [2020-10-19 23:14:16,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:16,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261313974] [2020-10-19 23:14:16,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:16,570 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:16,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261313974] [2020-10-19 23:14:16,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:16,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:16,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368953762] [2020-10-19 23:14:16,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:16,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:16,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:16,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:16,574 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 3 states. [2020-10-19 23:14:17,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:17,625 INFO L93 Difference]: Finished difference Result 3257 states and 4123 transitions. [2020-10-19 23:14:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:17,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-10-19 23:14:17,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:17,637 INFO L225 Difference]: With dead ends: 3257 [2020-10-19 23:14:17,637 INFO L226 Difference]: Without dead ends: 1917 [2020-10-19 23:14:17,640 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 23:14:17,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2020-10-19 23:14:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1914. [2020-10-19 23:14:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2020-10-19 23:14:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2384 transitions. [2020-10-19 23:14:17,694 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2384 transitions. Word has length 179 [2020-10-19 23:14:17,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:17,695 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2384 transitions. [2020-10-19 23:14:17,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2384 transitions. [2020-10-19 23:14:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 23:14:17,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:17,702 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:17,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:14:17,703 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:17,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:17,703 INFO L82 PathProgramCache]: Analyzing trace with hash 193360945, now seen corresponding path program 1 times [2020-10-19 23:14:17,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:17,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184640939] [2020-10-19 23:14:17,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-19 23:14:17,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184640939] [2020-10-19 23:14:17,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:17,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:17,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436015519] [2020-10-19 23:14:17,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:17,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:17,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:17,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:17,963 INFO L87 Difference]: Start difference. First operand 1914 states and 2384 transitions. Second operand 3 states. [2020-10-19 23:14:19,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:19,182 INFO L93 Difference]: Finished difference Result 4389 states and 5590 transitions. [2020-10-19 23:14:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:19,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 23:14:19,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:19,197 INFO L225 Difference]: With dead ends: 4389 [2020-10-19 23:14:19,197 INFO L226 Difference]: Without dead ends: 2661 [2020-10-19 23:14:19,200 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 23:14:19,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2020-10-19 23:14:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2467. [2020-10-19 23:14:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2020-10-19 23:14:19,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3045 transitions. [2020-10-19 23:14:19,272 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3045 transitions. Word has length 234 [2020-10-19 23:14:19,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:19,273 INFO L481 AbstractCegarLoop]: Abstraction has 2467 states and 3045 transitions. [2020-10-19 23:14:19,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:19,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3045 transitions. [2020-10-19 23:14:19,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-19 23:14:19,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:19,279 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:19,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:14:19,279 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:19,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:19,280 INFO L82 PathProgramCache]: Analyzing trace with hash 663682114, now seen corresponding path program 1 times [2020-10-19 23:14:19,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:19,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065977403] [2020-10-19 23:14:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 95 proven. 4 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-19 23:14:19,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065977403] [2020-10-19 23:14:19,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027946897] [2020-10-19 23:14:19,821 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 23:14:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:19,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:14:19,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:14:20,226 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-19 23:14:20,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:14:20,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-10-19 23:14:20,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187397310] [2020-10-19 23:14:20,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:20,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:20,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:20,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:14:20,236 INFO L87 Difference]: Start difference. First operand 2467 states and 3045 transitions. Second operand 3 states. [2020-10-19 23:14:21,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:21,889 INFO L93 Difference]: Finished difference Result 6589 states and 8262 transitions. [2020-10-19 23:14:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:21,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-10-19 23:14:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:21,915 INFO L225 Difference]: With dead ends: 6589 [2020-10-19 23:14:21,916 INFO L226 Difference]: Without dead ends: 4124 [2020-10-19 23:14:21,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-19 23:14:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states. [2020-10-19 23:14:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 4124. [2020-10-19 23:14:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4124 states. [2020-10-19 23:14:22,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4124 states to 4124 states and 5062 transitions. [2020-10-19 23:14:22,059 INFO L78 Accepts]: Start accepts. Automaton has 4124 states and 5062 transitions. Word has length 240 [2020-10-19 23:14:22,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:22,060 INFO L481 AbstractCegarLoop]: Abstraction has 4124 states and 5062 transitions. [2020-10-19 23:14:22,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4124 states and 5062 transitions. [2020-10-19 23:14:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-19 23:14:22,073 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:22,074 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 23:14:22,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-19 23:14:22,293 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:22,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:22,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1640958507, now seen corresponding path program 1 times [2020-10-19 23:14:22,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:22,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435190384] [2020-10-19 23:14:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-19 23:14:22,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435190384] [2020-10-19 23:14:22,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:22,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:22,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296577238] [2020-10-19 23:14:22,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:22,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:22,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:22,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:22,596 INFO L87 Difference]: Start difference. First operand 4124 states and 5062 transitions. Second operand 3 states. [2020-10-19 23:14:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:24,123 INFO L93 Difference]: Finished difference Result 9544 states and 11819 transitions. [2020-10-19 23:14:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:24,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2020-10-19 23:14:24,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:24,150 INFO L225 Difference]: With dead ends: 9544 [2020-10-19 23:14:24,151 INFO L226 Difference]: Without dead ends: 5422 [2020-10-19 23:14:24,156 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 23:14:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5422 states. [2020-10-19 23:14:24,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5422 to 5413. [2020-10-19 23:14:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5413 states. [2020-10-19 23:14:24,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 6530 transitions. [2020-10-19 23:14:24,286 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 6530 transitions. Word has length 271 [2020-10-19 23:14:24,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:24,287 INFO L481 AbstractCegarLoop]: Abstraction has 5413 states and 6530 transitions. [2020-10-19 23:14:24,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:24,288 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 6530 transitions. [2020-10-19 23:14:24,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2020-10-19 23:14:24,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:24,302 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:14:24,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:14:24,303 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:24,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:24,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1671786188, now seen corresponding path program 1 times [2020-10-19 23:14:24,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:24,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003997351] [2020-10-19 23:14:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2020-10-19 23:14:24,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003997351] [2020-10-19 23:14:24,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:24,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:24,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912112641] [2020-10-19 23:14:24,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:24,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:24,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:24,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:24,630 INFO L87 Difference]: Start difference. First operand 5413 states and 6530 transitions. Second operand 3 states. [2020-10-19 23:14:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:25,855 INFO L93 Difference]: Finished difference Result 12295 states and 15022 transitions. [2020-10-19 23:14:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:25,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 317 [2020-10-19 23:14:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:25,892 INFO L225 Difference]: With dead ends: 12295 [2020-10-19 23:14:25,892 INFO L226 Difference]: Without dead ends: 6884 [2020-10-19 23:14:25,902 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 23:14:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6884 states. [2020-10-19 23:14:26,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6884 to 4854. [2020-10-19 23:14:26,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4854 states. [2020-10-19 23:14:26,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4854 states to 4854 states and 5944 transitions. [2020-10-19 23:14:26,049 INFO L78 Accepts]: Start accepts. Automaton has 4854 states and 5944 transitions. Word has length 317 [2020-10-19 23:14:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:26,050 INFO L481 AbstractCegarLoop]: Abstraction has 4854 states and 5944 transitions. [2020-10-19 23:14:26,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 4854 states and 5944 transitions. [2020-10-19 23:14:26,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-19 23:14:26,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:26,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:26,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:14:26,072 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:26,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:26,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2126425706, now seen corresponding path program 1 times [2020-10-19 23:14:26,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:26,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83789972] [2020-10-19 23:14:26,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:27,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83789972] [2020-10-19 23:14:27,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530070599] [2020-10-19 23:14:27,249 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 23:14:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:27,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-19 23:14:27,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:14:27,604 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-19 23:14:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:28,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 23:14:28,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 23:14:28,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509152900] [2020-10-19 23:14:28,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:14:28,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:28,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:14:28,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:14:28,221 INFO L87 Difference]: Start difference. First operand 4854 states and 5944 transitions. Second operand 7 states. [2020-10-19 23:14:31,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:31,929 INFO L93 Difference]: Finished difference Result 14066 states and 17031 transitions. [2020-10-19 23:14:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-19 23:14:31,930 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 336 [2020-10-19 23:14:31,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:32,002 INFO L225 Difference]: With dead ends: 14066 [2020-10-19 23:14:32,003 INFO L226 Difference]: Without dead ends: 9214 [2020-10-19 23:14:32,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-19 23:14:32,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9214 states. [2020-10-19 23:14:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 5035. [2020-10-19 23:14:32,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5035 states. [2020-10-19 23:14:32,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 6130 transitions. [2020-10-19 23:14:32,229 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 6130 transitions. Word has length 336 [2020-10-19 23:14:32,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:32,230 INFO L481 AbstractCegarLoop]: Abstraction has 5035 states and 6130 transitions. [2020-10-19 23:14:32,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:14:32,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 6130 transitions. [2020-10-19 23:14:32,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-19 23:14:32,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:32,244 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:32,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:14:32,458 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1209575348, now seen corresponding path program 1 times [2020-10-19 23:14:32,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:32,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830387245] [2020-10-19 23:14:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:14:32,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830387245] [2020-10-19 23:14:32,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:32,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:32,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132117565] [2020-10-19 23:14:32,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:32,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:32,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:32,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:32,801 INFO L87 Difference]: Start difference. First operand 5035 states and 6130 transitions. Second operand 4 states. [2020-10-19 23:14:35,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:35,009 INFO L93 Difference]: Finished difference Result 13948 states and 17018 transitions. [2020-10-19 23:14:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:35,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 357 [2020-10-19 23:14:35,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:35,027 INFO L225 Difference]: With dead ends: 13948 [2020-10-19 23:14:35,027 INFO L226 Difference]: Without dead ends: 8915 [2020-10-19 23:14:35,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 23:14:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2020-10-19 23:14:35,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 7625. [2020-10-19 23:14:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7625 states. [2020-10-19 23:14:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7625 states to 7625 states and 9067 transitions. [2020-10-19 23:14:35,146 INFO L78 Accepts]: Start accepts. Automaton has 7625 states and 9067 transitions. Word has length 357 [2020-10-19 23:14:35,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:35,147 INFO L481 AbstractCegarLoop]: Abstraction has 7625 states and 9067 transitions. [2020-10-19 23:14:35,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 7625 states and 9067 transitions. [2020-10-19 23:14:35,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-19 23:14:35,170 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:35,171 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:14:35,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:14:35,171 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:35,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:35,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1172571865, now seen corresponding path program 1 times [2020-10-19 23:14:35,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:35,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132211238] [2020-10-19 23:14:35,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-19 23:14:35,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132211238] [2020-10-19 23:14:35,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:35,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 23:14:35,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043841927] [2020-10-19 23:14:35,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:35,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:35,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:35,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:35,635 INFO L87 Difference]: Start difference. First operand 7625 states and 9067 transitions. Second operand 4 states. [2020-10-19 23:14:37,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:37,668 INFO L93 Difference]: Finished difference Result 16538 states and 19586 transitions. [2020-10-19 23:14:37,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:37,670 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 431 [2020-10-19 23:14:37,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:37,693 INFO L225 Difference]: With dead ends: 16538 [2020-10-19 23:14:37,693 INFO L226 Difference]: Without dead ends: 8915 [2020-10-19 23:14:37,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 23:14:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2020-10-19 23:14:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 7625. [2020-10-19 23:14:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7625 states. [2020-10-19 23:14:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7625 states to 7625 states and 9067 transitions. [2020-10-19 23:14:37,818 INFO L78 Accepts]: Start accepts. Automaton has 7625 states and 9067 transitions. Word has length 431 [2020-10-19 23:14:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:37,822 INFO L481 AbstractCegarLoop]: Abstraction has 7625 states and 9067 transitions. [2020-10-19 23:14:37,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7625 states and 9067 transitions. [2020-10-19 23:14:37,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-19 23:14:37,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:37,844 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2020-10-19 23:14:37,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:14:37,844 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:37,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:37,845 INFO L82 PathProgramCache]: Analyzing trace with hash 610449068, now seen corresponding path program 1 times [2020-10-19 23:14:37,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:37,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627271881] [2020-10-19 23:14:37,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:38,238 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-19 23:14:38,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627271881] [2020-10-19 23:14:38,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:38,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:38,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588498437] [2020-10-19 23:14:38,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:14:38,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:38,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:14:38,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:14:38,242 INFO L87 Difference]: Start difference. First operand 7625 states and 9067 transitions. Second operand 4 states. [2020-10-19 23:14:40,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:40,242 INFO L93 Difference]: Finished difference Result 20971 states and 24863 transitions. [2020-10-19 23:14:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:14:40,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 431 [2020-10-19 23:14:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:40,270 INFO L225 Difference]: With dead ends: 20971 [2020-10-19 23:14:40,270 INFO L226 Difference]: Without dead ends: 13348 [2020-10-19 23:14:40,281 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 23:14:40,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13348 states. [2020-10-19 23:14:40,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13348 to 13161. [2020-10-19 23:14:40,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13161 states. [2020-10-19 23:14:40,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13161 states to 13161 states and 15429 transitions. [2020-10-19 23:14:40,461 INFO L78 Accepts]: Start accepts. Automaton has 13161 states and 15429 transitions. Word has length 431 [2020-10-19 23:14:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:40,462 INFO L481 AbstractCegarLoop]: Abstraction has 13161 states and 15429 transitions. [2020-10-19 23:14:40,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:14:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 13161 states and 15429 transitions. [2020-10-19 23:14:40,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-10-19 23:14:40,490 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:40,491 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:40,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 23:14:40,491 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:40,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:40,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1602583699, now seen corresponding path program 1 times [2020-10-19 23:14:40,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:40,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150258802] [2020-10-19 23:14:40,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:40,927 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-19 23:14:40,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150258802] [2020-10-19 23:14:40,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:40,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:40,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612959645] [2020-10-19 23:14:40,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:40,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:40,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:40,936 INFO L87 Difference]: Start difference. First operand 13161 states and 15429 transitions. Second operand 3 states. [2020-10-19 23:14:42,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:42,175 INFO L93 Difference]: Finished difference Result 26523 states and 31079 transitions. [2020-10-19 23:14:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:42,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 476 [2020-10-19 23:14:42,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:42,193 INFO L225 Difference]: With dead ends: 26523 [2020-10-19 23:14:42,193 INFO L226 Difference]: Without dead ends: 13364 [2020-10-19 23:14:42,208 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 23:14:42,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13364 states. [2020-10-19 23:14:42,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13364 to 12609. [2020-10-19 23:14:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12609 states. [2020-10-19 23:14:42,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12609 states to 12609 states and 14439 transitions. [2020-10-19 23:14:42,461 INFO L78 Accepts]: Start accepts. Automaton has 12609 states and 14439 transitions. Word has length 476 [2020-10-19 23:14:42,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:42,462 INFO L481 AbstractCegarLoop]: Abstraction has 12609 states and 14439 transitions. [2020-10-19 23:14:42,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 12609 states and 14439 transitions. [2020-10-19 23:14:42,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2020-10-19 23:14:42,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:42,492 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:14:42,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 23:14:42,492 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:42,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:42,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1547843442, now seen corresponding path program 1 times [2020-10-19 23:14:42,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:42,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845078127] [2020-10-19 23:14:42,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:42,922 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-10-19 23:14:42,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845078127] [2020-10-19 23:14:42,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:42,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:14:42,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469135827] [2020-10-19 23:14:42,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:42,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:42,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:42,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:42,925 INFO L87 Difference]: Start difference. First operand 12609 states and 14439 transitions. Second operand 3 states. [2020-10-19 23:14:43,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:43,645 INFO L93 Difference]: Finished difference Result 24646 states and 28183 transitions. [2020-10-19 23:14:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:43,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 488 [2020-10-19 23:14:43,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:43,661 INFO L225 Difference]: With dead ends: 24646 [2020-10-19 23:14:43,662 INFO L226 Difference]: Without dead ends: 12039 [2020-10-19 23:14:43,673 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 23:14:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12039 states. [2020-10-19 23:14:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12039 to 12035. [2020-10-19 23:14:43,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12035 states. [2020-10-19 23:14:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12035 states to 12035 states and 13732 transitions. [2020-10-19 23:14:43,835 INFO L78 Accepts]: Start accepts. Automaton has 12035 states and 13732 transitions. Word has length 488 [2020-10-19 23:14:43,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:43,836 INFO L481 AbstractCegarLoop]: Abstraction has 12035 states and 13732 transitions. [2020-10-19 23:14:43,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:43,836 INFO L276 IsEmpty]: Start isEmpty. Operand 12035 states and 13732 transitions. [2020-10-19 23:14:43,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-10-19 23:14:43,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:43,859 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 23:14:43,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 23:14:43,860 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:43,861 INFO L82 PathProgramCache]: Analyzing trace with hash -264628616, now seen corresponding path program 1 times [2020-10-19 23:14:43,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:43,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17870262] [2020-10-19 23:14:43,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-10-19 23:14:44,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17870262] [2020-10-19 23:14:44,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:44,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:44,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154039558] [2020-10-19 23:14:44,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:44,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:44,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:44,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:44,330 INFO L87 Difference]: Start difference. First operand 12035 states and 13732 transitions. Second operand 3 states. [2020-10-19 23:14:45,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:45,614 INFO L93 Difference]: Finished difference Result 22389 states and 25413 transitions. [2020-10-19 23:14:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:45,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 504 [2020-10-19 23:14:45,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:45,632 INFO L225 Difference]: With dead ends: 22389 [2020-10-19 23:14:45,632 INFO L226 Difference]: Without dead ends: 10356 [2020-10-19 23:14:45,641 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 23:14:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10356 states. [2020-10-19 23:14:45,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10356 to 9620. [2020-10-19 23:14:45,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9620 states. [2020-10-19 23:14:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9620 states to 9620 states and 10719 transitions. [2020-10-19 23:14:45,763 INFO L78 Accepts]: Start accepts. Automaton has 9620 states and 10719 transitions. Word has length 504 [2020-10-19 23:14:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:45,764 INFO L481 AbstractCegarLoop]: Abstraction has 9620 states and 10719 transitions. [2020-10-19 23:14:45,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9620 states and 10719 transitions. [2020-10-19 23:14:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2020-10-19 23:14:45,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:45,782 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:14:45,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 23:14:45,783 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:45,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:45,784 INFO L82 PathProgramCache]: Analyzing trace with hash -619731925, now seen corresponding path program 1 times [2020-10-19 23:14:45,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:45,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137975055] [2020-10-19 23:14:45,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 1023 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2020-10-19 23:14:46,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137975055] [2020-10-19 23:14:46,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:46,307 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:46,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907987690] [2020-10-19 23:14:46,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:46,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:46,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:46,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:46,309 INFO L87 Difference]: Start difference. First operand 9620 states and 10719 transitions. Second operand 3 states. [2020-10-19 23:14:47,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:47,553 INFO L93 Difference]: Finished difference Result 20893 states and 23289 transitions. [2020-10-19 23:14:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:47,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 760 [2020-10-19 23:14:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:47,563 INFO L225 Difference]: With dead ends: 20893 [2020-10-19 23:14:47,563 INFO L226 Difference]: Without dead ends: 10170 [2020-10-19 23:14:47,569 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 23:14:47,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10170 states. [2020-10-19 23:14:47,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10170 to 10170. [2020-10-19 23:14:47,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10170 states. [2020-10-19 23:14:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10170 states to 10170 states and 11132 transitions. [2020-10-19 23:14:47,693 INFO L78 Accepts]: Start accepts. Automaton has 10170 states and 11132 transitions. Word has length 760 [2020-10-19 23:14:47,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:47,693 INFO L481 AbstractCegarLoop]: Abstraction has 10170 states and 11132 transitions. [2020-10-19 23:14:47,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 10170 states and 11132 transitions. [2020-10-19 23:14:47,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2020-10-19 23:14:47,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:14:47,710 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-19 23:14:47,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 23:14:47,710 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:14:47,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:14:47,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1445539619, now seen corresponding path program 1 times [2020-10-19 23:14:47,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:14:47,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329574183] [2020-10-19 23:14:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:14:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:14:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 1501 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2020-10-19 23:14:48,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329574183] [2020-10-19 23:14:48,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:14:48,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:14:48,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031426937] [2020-10-19 23:14:48,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:14:48,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:14:48,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:14:48,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:14:48,680 INFO L87 Difference]: Start difference. First operand 10170 states and 11132 transitions. Second operand 3 states. [2020-10-19 23:14:49,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:14:49,825 INFO L93 Difference]: Finished difference Result 21439 states and 23424 transitions. [2020-10-19 23:14:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:14:49,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 850 [2020-10-19 23:14:49,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:14:49,826 INFO L225 Difference]: With dead ends: 21439 [2020-10-19 23:14:49,826 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:14:49,834 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 23:14:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:14:49,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:14:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:14:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:14:49,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 850 [2020-10-19 23:14:49,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:14:49,836 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:14:49,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:14:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:14:49,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:14:49,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 23:14:49,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:14:50,197 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 176 [2020-10-19 23:14:50,525 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 176 [2020-10-19 23:14:52,105 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2020-10-19 23:14:53,600 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2020-10-19 23:14:53,604 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,605 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,605 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,606 INFO L270 CegarLoopResult]: At program point L1027(lines 24 1028) the Hoare annotation is: (let ((.cse16 (+ ~a23~0 43))) (let ((.cse1 (<= ~a23~0 312)) (.cse6 (= ~a25~0 12)) (.cse15 (<= ~a29~0 599999)) (.cse0 (= ~a25~0 11)) (.cse9 (<= ~a25~0 10)) (.cse12 (<= ~a29~0 245)) (.cse11 (<= ~a23~0 138)) (.cse10 (= ~a4~0 0)) (.cse8 (<= (+ ~a29~0 22) 0)) (.cse14 (< 0 .cse16)) (.cse7 (= ~a3~0 1)) (.cse5 (< 306 ~a23~0)) (.cse13 (= ~a25~0 13)) (.cse2 (= ~a8~0 15)) (.cse3 (<= ~a29~0 599998)) (.cse4 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (or (<= ~a29~0 277) (not (= 6 ULTIMATE.start_calculate_output_~input))) .cse2 .cse6 .cse3 .cse4 .cse7) (and .cse8 .cse1 .cse2 .cse6 .cse4) (and .cse9 .cse2 .cse3 .cse4) (and .cse10 .cse2 .cse6 .cse3) (and .cse11 .cse9 .cse10 .cse2 .cse12) (and .cse0 (<= ~a29~0 130) .cse2 .cse4) (and .cse0 .cse10 .cse1 .cse2 .cse3) (and .cse10 .cse8 .cse13 (<= (+ ~a23~0 599772) 0) .cse2) (and .cse9 .cse10 .cse8 .cse2) (and .cse11 .cse9 .cse2 .cse4 .cse7 .cse14) (and (<= (+ ~a29~0 21) 0) .cse2 .cse6 .cse4 .cse7) (and .cse15 .cse9 .cse2 .cse4 .cse7) (and .cse15 .cse0 .cse2 .cse7 .cse4) (and .cse9 .cse10 .cse2 .cse3 (<= .cse16 0)) (and .cse13 .cse2 .cse12 .cse4) (and .cse11 .cse10 .cse8 .cse13 .cse2 .cse14) (and (or (and .cse13 .cse7) (and .cse5 .cse13)) .cse2 .cse3 .cse4)))) [2020-10-19 23:14:53,606 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,606 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:14:53,607 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-19 23:14:53,607 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,607 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,607 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,607 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,608 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,608 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,608 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-19 23:14:53,608 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-19 23:14:53,608 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-19 23:14:53,609 INFO L277 CegarLoopResult]: At program point L1030(lines 1030 1046) the Hoare annotation is: true [2020-10-19 23:14:53,609 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,609 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,609 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,609 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-19 23:14:53,610 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-19 23:14:53,611 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,611 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,611 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,611 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,611 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-19 23:14:53,612 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-19 23:14:53,613 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-19 23:14:53,613 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,613 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse16 (+ ~a23~0 43))) (let ((.cse1 (<= ~a23~0 312)) (.cse6 (= ~a25~0 12)) (.cse15 (<= ~a29~0 599999)) (.cse0 (= ~a25~0 11)) (.cse9 (<= ~a25~0 10)) (.cse12 (<= ~a29~0 245)) (.cse11 (<= ~a23~0 138)) (.cse10 (= ~a4~0 0)) (.cse8 (<= (+ ~a29~0 22) 0)) (.cse14 (< 0 .cse16)) (.cse7 (= ~a3~0 1)) (.cse5 (< 306 ~a23~0)) (.cse13 (= ~a25~0 13)) (.cse2 (= ~a8~0 15)) (.cse3 (<= ~a29~0 599998)) (.cse4 (= ~a4~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (or (<= ~a29~0 277) (not (= 6 ULTIMATE.start_calculate_output_~input))) .cse2 .cse6 .cse3 .cse4 .cse7) (and .cse8 .cse1 .cse2 .cse6 .cse4) (and .cse9 .cse2 .cse3 .cse4) (and .cse10 .cse2 .cse6 .cse3) (and .cse11 .cse9 .cse10 .cse2 .cse12) (and .cse0 .cse10 .cse1 .cse2 .cse3) (and .cse0 (<= ~a29~0 130) .cse2 .cse4) (and .cse10 .cse8 .cse13 (<= (+ ~a23~0 599772) 0) .cse2) (and .cse9 .cse10 .cse8 .cse2) (and .cse11 .cse9 .cse2 .cse4 .cse7 .cse14) (and (<= (+ ~a29~0 21) 0) .cse2 .cse6 .cse4 .cse7) (and .cse15 .cse9 .cse2 .cse4 .cse7) (and .cse15 .cse0 .cse2 .cse7 .cse4) (and .cse9 .cse10 .cse2 .cse3 (<= .cse16 0)) (and .cse13 .cse2 .cse12 .cse4) (and .cse11 .cse10 .cse8 .cse13 .cse2 .cse14) (and (or (and .cse13 .cse7) (and .cse5 .cse13)) .cse2 .cse3 .cse4)))) [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,614 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,615 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-19 23:14:53,616 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-19 23:14:53,617 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,618 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-19 23:14:53,619 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,620 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,621 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-19 23:14:53,622 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-19 23:14:53,623 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,624 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,625 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-19 23:14:53,626 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,627 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,628 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-19 23:14:53,629 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-19 23:14:53,630 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-19 23:14:53,631 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,632 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,633 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,634 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:14:53,635 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,636 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,637 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,638 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-19 23:14:53,639 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-19 23:14:53,640 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-19 23:14:53,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:14:53 BoogieIcfgContainer [2020-10-19 23:14:53,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:14:53,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:14:53,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:14:53,673 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:14:53,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:14:11" (3/4) ... [2020-10-19 23:14:53,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:14:53,704 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:14:53,706 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:14:53,708 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:14:53,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:14:53,901 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:14:53,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:14:53,903 INFO L168 Benchmark]: Toolchain (without parser) took 46465.83 ms. Allocated memory was 37.2 MB in the beginning and 636.5 MB in the end (delta: 599.3 MB). Free memory was 9.8 MB in the beginning and 188.8 MB in the end (delta: -179.0 MB). Peak memory consumption was 420.2 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,903 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 37.2 MB. Free memory was 16.8 MB in the beginning and 16.8 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1049.07 ms. Allocated memory was 37.2 MB in the beginning and 47.7 MB in the end (delta: 10.5 MB). Free memory was 8.9 MB in the beginning and 21.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 343.49 ms. Allocated memory was 47.7 MB in the beginning and 58.7 MB in the end (delta: 11.0 MB). Free memory was 21.9 MB in the beginning and 31.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,904 INFO L168 Benchmark]: Boogie Preprocessor took 151.27 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 20.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,905 INFO L168 Benchmark]: RCFGBuilder took 2186.23 ms. Allocated memory was 58.7 MB in the beginning and 86.5 MB in the end (delta: 27.8 MB). Free memory was 20.6 MB in the beginning and 33.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 30.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,905 INFO L168 Benchmark]: TraceAbstraction took 42494.58 ms. Allocated memory was 86.5 MB in the beginning and 636.5 MB in the end (delta: 550.0 MB). Free memory was 32.7 MB in the beginning and 227.9 MB in the end (delta: -195.2 MB). Peak memory consumption was 449.5 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,905 INFO L168 Benchmark]: Witness Printer took 228.81 ms. Allocated memory is still 636.5 MB. Free memory was 227.9 MB in the beginning and 188.8 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:14:53,908 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 37.2 MB. Free memory was 16.8 MB in the beginning and 16.8 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 1049.07 ms. Allocated memory was 37.2 MB in the beginning and 47.7 MB in the end (delta: 10.5 MB). Free memory was 8.9 MB in the beginning and 21.9 MB in the end (delta: -13.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 343.49 ms. Allocated memory was 47.7 MB in the beginning and 58.7 MB in the end (delta: 11.0 MB). Free memory was 21.9 MB in the beginning and 31.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 151.27 ms. Allocated memory is still 58.7 MB. Free memory was 31.1 MB in the beginning and 20.6 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 2186.23 ms. Allocated memory was 58.7 MB in the beginning and 86.5 MB in the end (delta: 27.8 MB). Free memory was 20.6 MB in the beginning and 33.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 30.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 42494.58 ms. Allocated memory was 86.5 MB in the beginning and 636.5 MB in the end (delta: 550.0 MB). Free memory was 32.7 MB in the beginning and 227.9 MB in the end (delta: -195.2 MB). Peak memory consumption was 449.5 MB. Max. memory is 14.3 GB. * Witness Printer took 228.81 ms. Allocated memory is still 636.5 MB. Free memory was 227.9 MB in the beginning and 188.8 MB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 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: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a25 == 11 && a23 <= 312) && a8 == 15) && a29 <= 599998) && a4 == 1) || ((((((306 < a23 && (a29 <= 277 || !(6 == input))) && a8 == 15) && a25 == 12) && a29 <= 599998) && a4 == 1) && a3 == 1)) || ((((a29 + 22 <= 0 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1)) || (((a25 <= 10 && a8 == 15) && a29 <= 599998) && a4 == 1)) || (((a4 == 0 && a8 == 15) && a25 == 12) && a29 <= 599998)) || ((((a23 <= 138 && a25 <= 10) && a4 == 0) && a8 == 15) && a29 <= 245)) || (((a25 == 11 && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((a25 == 11 && a4 == 0) && a23 <= 312) && a8 == 15) && a29 <= 599998)) || ((((a4 == 0 && a29 + 22 <= 0) && a25 == 13) && a23 + 599772 <= 0) && a8 == 15)) || (((a25 <= 10 && a4 == 0) && a29 + 22 <= 0) && a8 == 15)) || (((((a23 <= 138 && a25 <= 10) && a8 == 15) && a4 == 1) && a3 == 1) && 0 < a23 + 43)) || ((((a29 + 21 <= 0 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((a29 <= 599999 && a25 <= 10) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a29 <= 599999 && a25 == 11) && a8 == 15) && a3 == 1) && a4 == 1)) || ((((a25 <= 10 && a4 == 0) && a8 == 15) && a29 <= 599998) && a23 + 43 <= 0)) || (((a25 == 13 && a8 == 15) && a29 <= 245) && a4 == 1)) || (((((a23 <= 138 && a4 == 0) && a29 + 22 <= 0) && a25 == 13) && a8 == 15) && 0 < a23 + 43)) || (((((a25 == 13 && a3 == 1) || (306 < a23 && a25 == 13)) && a8 == 15) && a29 <= 599998) && a4 == 1) - InvariantResult [Line: 1030]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a25 == 11 && a23 <= 312) && a8 == 15) && a29 <= 599998) && a4 == 1) || ((((((306 < a23 && (a29 <= 277 || !(6 == input))) && a8 == 15) && a25 == 12) && a29 <= 599998) && a4 == 1) && a3 == 1)) || ((((a29 + 22 <= 0 && a23 <= 312) && a8 == 15) && a25 == 12) && a4 == 1)) || (((a25 <= 10 && a8 == 15) && a29 <= 599998) && a4 == 1)) || (((a4 == 0 && a8 == 15) && a25 == 12) && a29 <= 599998)) || ((((a23 <= 138 && a25 <= 10) && a4 == 0) && a8 == 15) && a29 <= 245)) || ((((a25 == 11 && a4 == 0) && a23 <= 312) && a8 == 15) && a29 <= 599998)) || (((a25 == 11 && a29 <= 130) && a8 == 15) && a4 == 1)) || ((((a4 == 0 && a29 + 22 <= 0) && a25 == 13) && a23 + 599772 <= 0) && a8 == 15)) || (((a25 <= 10 && a4 == 0) && a29 + 22 <= 0) && a8 == 15)) || (((((a23 <= 138 && a25 <= 10) && a8 == 15) && a4 == 1) && a3 == 1) && 0 < a23 + 43)) || ((((a29 + 21 <= 0 && a8 == 15) && a25 == 12) && a4 == 1) && a3 == 1)) || ((((a29 <= 599999 && a25 <= 10) && a8 == 15) && a4 == 1) && a3 == 1)) || ((((a29 <= 599999 && a25 == 11) && a8 == 15) && a3 == 1) && a4 == 1)) || ((((a25 <= 10 && a4 == 0) && a8 == 15) && a29 <= 599998) && a23 + 43 <= 0)) || (((a25 == 13 && a8 == 15) && a29 <= 245) && a4 == 1)) || (((((a23 <= 138 && a4 == 0) && a29 + 22 <= 0) && a25 == 13) && a8 == 15) && 0 < a23 + 43)) || (((((a25 == 13 && a3 == 1) || (306 < a23 && a25 == 13)) && a8 == 15) && a29 <= 599998) && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.5s, OverallIterations: 17, TraceHistogramMax: 7, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3035 SDtfs, 3078 SDslu, 448 SDs, 0 SdLazy, 12227 SolverSat, 2297 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 631 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13161occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 17 MinimizatonAttempts, 10689 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 139 NumberOfFragments, 637 HoareAnnotationTreeSize, 3 FomulaSimplifications, 39482 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6108 FormulaSimplificationTreeSizeReductionInter, 3.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 6744 NumberOfCodeBlocks, 6744 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6725 ConstructedInterpolants, 0 QuantifiedInterpolants, 7704408 SizeOfPredicates, 7 NumberOfNonLiveVariables, 829 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 8185/8295 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...