./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem10_label30.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/Problem10_label30.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 63ffbca247a08b93472bab66d341b21a007768f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:10:11,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:10:11,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:10:11,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:10:11,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:10:11,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:10:11,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:10:11,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:10:11,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:10:11,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:10:11,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:10:11,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:10:11,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:10:11,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:10:11,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:10:11,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:10:11,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:10:11,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:10:11,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:10:11,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:10:11,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:10:11,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:10:11,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:10:11,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:10:11,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:10:11,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:10:11,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:10:11,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:10:11,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:10:11,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:10:11,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:10:11,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:10:11,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:10:11,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:10:11,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:10:11,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:10:11,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:10:11,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:10:11,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:10:11,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:10:11,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:10:11,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:10:11,570 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:10:11,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:10:11,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:10:11,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:10:11,576 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:10:11,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:10:11,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:10:11,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:10:11,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:10:11,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:10:11,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:10:11,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:10:11,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:10:11,578 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:10:11,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:10:11,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:10:11,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:10:11,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:10:11,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:10:11,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:10:11,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:10:11,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:10:11,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:10:11,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:10:11,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:10:11,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:10:11,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:10:11,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:10:11,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:10:11,582 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 -> 63ffbca247a08b93472bab66d341b21a007768f4 [2020-10-19 23:10:11,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:10:11,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:10:11,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:10:11,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:10:11,808 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:10:11,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2020-10-19 23:10:11,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4500cd2/c580fcb76cd64473804f82cccf67805a/FLAG66e997a61 [2020-10-19 23:10:12,483 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:10:12,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label30.c [2020-10-19 23:10:12,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4500cd2/c580fcb76cd64473804f82cccf67805a/FLAG66e997a61 [2020-10-19 23:10:12,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4500cd2/c580fcb76cd64473804f82cccf67805a [2020-10-19 23:10:12,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:10:12,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:10:12,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:12,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:10:12,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:10:12,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:12" (1/1) ... [2020-10-19 23:10:12,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c783334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:12, skipping insertion in model container [2020-10-19 23:10:12,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:10:12" (1/1) ... [2020-10-19 23:10:12,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:10:12,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:10:13,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:13,282 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:10:13,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:10:13,418 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:10:13,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13 WrapperNode [2020-10-19 23:10:13,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:10:13,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:13,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:10:13,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:10:13,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:10:13,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:10:13,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:10:13,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:10:13,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (1/1) ... [2020-10-19 23:10:13,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:10:13,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:10:13,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:10:13,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:10:13,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (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 23:10:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:10:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:10:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:10:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:10:15,214 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:10:15,215 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:10:15,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:15 BoogieIcfgContainer [2020-10-19 23:10:15,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:10:15,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:10:15,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:10:15,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:10:15,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:10:12" (1/3) ... [2020-10-19 23:10:15,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ded6fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:15, skipping insertion in model container [2020-10-19 23:10:15,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:10:13" (2/3) ... [2020-10-19 23:10:15,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ded6fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:10:15, skipping insertion in model container [2020-10-19 23:10:15,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:15" (3/3) ... [2020-10-19 23:10:15,227 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label30.c [2020-10-19 23:10:15,250 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:10:15,259 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:10:15,274 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:10:15,303 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:10:15,304 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:10:15,304 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:10:15,304 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:10:15,304 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:10:15,305 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:10:15,305 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:10:15,305 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:10:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-19 23:10:15,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-19 23:10:15,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:15,336 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] [2020-10-19 23:10:15,337 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:15,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:15,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1089129850, now seen corresponding path program 1 times [2020-10-19 23:10:15,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:15,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28164183] [2020-10-19 23:10:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:15,594 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 23:10:15,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28164183] [2020-10-19 23:10:15,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:15,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:15,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215023019] [2020-10-19 23:10:15,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:15,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:15,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:15,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:15,619 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-10-19 23:10:16,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:16,684 INFO L93 Difference]: Finished difference Result 568 states and 982 transitions. [2020-10-19 23:10:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:16,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-10-19 23:10:16,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:16,704 INFO L225 Difference]: With dead ends: 568 [2020-10-19 23:10:16,704 INFO L226 Difference]: Without dead ends: 282 [2020-10-19 23:10:16,710 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 23:10:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-19 23:10:16,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-10-19 23:10:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-19 23:10:16,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 412 transitions. [2020-10-19 23:10:16,784 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 412 transitions. Word has length 34 [2020-10-19 23:10:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:16,784 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 412 transitions. [2020-10-19 23:10:16,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 412 transitions. [2020-10-19 23:10:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 23:10:16,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:16,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:16,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:10:16,791 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:16,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:16,791 INFO L82 PathProgramCache]: Analyzing trace with hash 424906012, now seen corresponding path program 1 times [2020-10-19 23:10:16,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:16,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082625252] [2020-10-19 23:10:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:17,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082625252] [2020-10-19 23:10:17,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:17,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:10:17,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678950358] [2020-10-19 23:10:17,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:17,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:17,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:17,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:17,053 INFO L87 Difference]: Start difference. First operand 282 states and 412 transitions. Second operand 3 states. [2020-10-19 23:10:17,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:17,782 INFO L93 Difference]: Finished difference Result 840 states and 1231 transitions. [2020-10-19 23:10:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:17,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 23:10:17,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:17,788 INFO L225 Difference]: With dead ends: 840 [2020-10-19 23:10:17,788 INFO L226 Difference]: Without dead ends: 560 [2020-10-19 23:10:17,790 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 23:10:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-19 23:10:17,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-10-19 23:10:17,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-19 23:10:17,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 730 transitions. [2020-10-19 23:10:17,824 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 730 transitions. Word has length 104 [2020-10-19 23:10:17,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:17,825 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 730 transitions. [2020-10-19 23:10:17,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:17,826 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 730 transitions. [2020-10-19 23:10:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-19 23:10:17,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:17,830 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:17,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:10:17,831 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:17,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1617432374, now seen corresponding path program 1 times [2020-10-19 23:10:17,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:17,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331213455] [2020-10-19 23:10:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:18,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331213455] [2020-10-19 23:10:18,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243462656] [2020-10-19 23:10:18,048 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 23:10:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:18,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:10:18,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:10:18,197 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:18,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:10:18,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 23:10:18,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097349896] [2020-10-19 23:10:18,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:18,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:18,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:18,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:10:18,200 INFO L87 Difference]: Start difference. First operand 560 states and 730 transitions. Second operand 3 states. [2020-10-19 23:10:18,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:18,950 INFO L93 Difference]: Finished difference Result 979 states and 1299 transitions. [2020-10-19 23:10:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:18,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-10-19 23:10:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:18,957 INFO L225 Difference]: With dead ends: 979 [2020-10-19 23:10:18,957 INFO L226 Difference]: Without dead ends: 977 [2020-10-19 23:10:18,959 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:10:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2020-10-19 23:10:18,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 699. [2020-10-19 23:10:18,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-10-19 23:10:18,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 944 transitions. [2020-10-19 23:10:18,989 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 944 transitions. Word has length 109 [2020-10-19 23:10:18,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:18,990 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 944 transitions. [2020-10-19 23:10:18,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:18,990 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 944 transitions. [2020-10-19 23:10:18,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-19 23:10:18,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:18,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:19,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 23:10:19,213 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:19,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1574774876, now seen corresponding path program 1 times [2020-10-19 23:10:19,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:19,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085390305] [2020-10-19 23:10:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:19,558 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:19,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085390305] [2020-10-19 23:10:19,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:19,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:19,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966286864] [2020-10-19 23:10:19,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:10:19,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:19,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:10:19,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:10:19,567 INFO L87 Difference]: Start difference. First operand 699 states and 944 transitions. Second operand 4 states. [2020-10-19 23:10:20,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:20,367 INFO L93 Difference]: Finished difference Result 1549 states and 2059 transitions. [2020-10-19 23:10:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 23:10:20,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2020-10-19 23:10:20,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:20,373 INFO L225 Difference]: With dead ends: 1549 [2020-10-19 23:10:20,374 INFO L226 Difference]: Without dead ends: 852 [2020-10-19 23:10:20,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:10:20,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2020-10-19 23:10:20,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 838. [2020-10-19 23:10:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:10:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1088 transitions. [2020-10-19 23:10:20,399 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1088 transitions. Word has length 152 [2020-10-19 23:10:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:20,400 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1088 transitions. [2020-10-19 23:10:20,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:10:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1088 transitions. [2020-10-19 23:10:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-19 23:10:20,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:20,406 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:10:20,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:10:20,407 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:20,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:20,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1850729028, now seen corresponding path program 1 times [2020-10-19 23:10:20,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:20,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089050780] [2020-10-19 23:10:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:20,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089050780] [2020-10-19 23:10:20,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:20,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 23:10:20,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839858390] [2020-10-19 23:10:20,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 23:10:20,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:20,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 23:10:20,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:20,690 INFO L87 Difference]: Start difference. First operand 838 states and 1088 transitions. Second operand 7 states. [2020-10-19 23:10:21,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:21,313 INFO L93 Difference]: Finished difference Result 1590 states and 2085 transitions. [2020-10-19 23:10:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 23:10:21,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2020-10-19 23:10:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:21,321 INFO L225 Difference]: With dead ends: 1590 [2020-10-19 23:10:21,321 INFO L226 Difference]: Without dead ends: 838 [2020-10-19 23:10:21,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-10-19 23:10:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-10-19 23:10:21,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-10-19 23:10:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-10-19 23:10:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1082 transitions. [2020-10-19 23:10:21,352 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1082 transitions. Word has length 187 [2020-10-19 23:10:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:21,353 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1082 transitions. [2020-10-19 23:10:21,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 23:10:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1082 transitions. [2020-10-19 23:10:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-19 23:10:21,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:21,359 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:10:21,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 23:10:21,360 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:21,361 INFO L82 PathProgramCache]: Analyzing trace with hash 57958092, now seen corresponding path program 1 times [2020-10-19 23:10:21,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:21,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681500136] [2020-10-19 23:10:21,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:21,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681500136] [2020-10-19 23:10:21,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:21,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:21,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65732537] [2020-10-19 23:10:21,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:21,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:21,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:21,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:21,536 INFO L87 Difference]: Start difference. First operand 838 states and 1082 transitions. Second operand 3 states. [2020-10-19 23:10:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:22,256 INFO L93 Difference]: Finished difference Result 1952 states and 2639 transitions. [2020-10-19 23:10:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:22,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-10-19 23:10:22,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:22,263 INFO L225 Difference]: With dead ends: 1952 [2020-10-19 23:10:22,263 INFO L226 Difference]: Without dead ends: 1255 [2020-10-19 23:10:22,265 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 23:10:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-19 23:10:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 977. [2020-10-19 23:10:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-10-19 23:10:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1223 transitions. [2020-10-19 23:10:22,291 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1223 transitions. Word has length 194 [2020-10-19 23:10:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:22,291 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1223 transitions. [2020-10-19 23:10:22,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:22,292 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1223 transitions. [2020-10-19 23:10:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-19 23:10:22,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:22,299 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:10:22,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:10:22,300 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash 457366122, now seen corresponding path program 1 times [2020-10-19 23:10:22,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:22,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102687093] [2020-10-19 23:10:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:22,512 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:10:22,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102687093] [2020-10-19 23:10:22,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:22,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:22,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674037782] [2020-10-19 23:10:22,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:22,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:22,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:22,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:22,516 INFO L87 Difference]: Start difference. First operand 977 states and 1223 transitions. Second operand 3 states. [2020-10-19 23:10:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:23,254 INFO L93 Difference]: Finished difference Result 2230 states and 2921 transitions. [2020-10-19 23:10:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:23,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2020-10-19 23:10:23,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:23,261 INFO L225 Difference]: With dead ends: 2230 [2020-10-19 23:10:23,262 INFO L226 Difference]: Without dead ends: 1394 [2020-10-19 23:10:23,263 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 23:10:23,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2020-10-19 23:10:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2020-10-19 23:10:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2020-10-19 23:10:23,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1556 transitions. [2020-10-19 23:10:23,296 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1556 transitions. Word has length 223 [2020-10-19 23:10:23,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:23,296 INFO L481 AbstractCegarLoop]: Abstraction has 1255 states and 1556 transitions. [2020-10-19 23:10:23,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:23,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1556 transitions. [2020-10-19 23:10:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-10-19 23:10:23,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:23,307 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:10:23,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:10:23,308 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:23,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1204121151, now seen corresponding path program 1 times [2020-10-19 23:10:23,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:23,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234237019] [2020-10-19 23:10:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-19 23:10:23,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234237019] [2020-10-19 23:10:23,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:23,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:23,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838033599] [2020-10-19 23:10:23,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:10:23,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:23,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:10:23,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:10:23,650 INFO L87 Difference]: Start difference. First operand 1255 states and 1556 transitions. Second operand 4 states. [2020-10-19 23:10:24,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:24,956 INFO L93 Difference]: Finished difference Result 3064 states and 3835 transitions. [2020-10-19 23:10:24,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:10:24,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 312 [2020-10-19 23:10:24,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:24,970 INFO L225 Difference]: With dead ends: 3064 [2020-10-19 23:10:24,970 INFO L226 Difference]: Without dead ends: 1950 [2020-10-19 23:10:24,972 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 23:10:24,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2020-10-19 23:10:25,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1811. [2020-10-19 23:10:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1811 states. [2020-10-19 23:10:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2225 transitions. [2020-10-19 23:10:25,038 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2225 transitions. Word has length 312 [2020-10-19 23:10:25,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:25,040 INFO L481 AbstractCegarLoop]: Abstraction has 1811 states and 2225 transitions. [2020-10-19 23:10:25,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:10:25,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2225 transitions. [2020-10-19 23:10:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-19 23:10:25,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:10:25,055 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 23:10:25,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:10:25,056 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:10:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:10:25,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1362085227, now seen corresponding path program 1 times [2020-10-19 23:10:25,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:10:25,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197369369] [2020-10-19 23:10:25,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:10:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:10:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2020-10-19 23:10:25,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197369369] [2020-10-19 23:10:25,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:10:25,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:10:25,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297374393] [2020-10-19 23:10:25,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:10:25,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:10:25,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:10:25,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:10:25,423 INFO L87 Difference]: Start difference. First operand 1811 states and 2225 transitions. Second operand 3 states. [2020-10-19 23:10:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:10:26,104 INFO L93 Difference]: Finished difference Result 4174 states and 5220 transitions. [2020-10-19 23:10:26,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:10:26,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2020-10-19 23:10:26,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:10:26,106 INFO L225 Difference]: With dead ends: 4174 [2020-10-19 23:10:26,106 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:10:26,112 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 23:10:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:10:26,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:10:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:10:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:10:26,113 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 331 [2020-10-19 23:10:26,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:10:26,113 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:10:26,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:10:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:10:26,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:10:26,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:10:26,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:10:26,407 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-19 23:10:26,407 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-19 23:10:26,407 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-19 23:10:26,407 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:10:26,407 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:10:26,408 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:10:26,408 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:10:26,408 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:10:26,408 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:10:26,408 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-19 23:10:26,409 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-19 23:10:26,409 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-19 23:10:26,409 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:10:26,409 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-19 23:10:26,410 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,410 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,411 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,411 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,411 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,412 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,412 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-19 23:10:26,412 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-19 23:10:26,412 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:10:26,412 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:10:26,413 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:10:26,413 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:10:26,413 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:10:26,413 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:10:26,413 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-19 23:10:26,414 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-19 23:10:26,414 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-19 23:10:26,414 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,414 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,414 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,415 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,415 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,415 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-19 23:10:26,415 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-19 23:10:26,415 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:10:26,416 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:10:26,417 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-19 23:10:26,417 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-19 23:10:26,417 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-19 23:10:26,417 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-19 23:10:26,417 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,418 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-19 23:10:26,419 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:10:26,419 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:10:26,419 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:10:26,419 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:10:26,419 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:10:26,420 INFO L270 CegarLoopResult]: At program point L575(lines 22 576) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= 8 ~a19~0) .cse0 .cse1) (and (= ~a10~0 1) .cse0 .cse1) (and .cse0 .cse1 (<= ~a1~0 206)))) [2020-10-19 23:10:26,420 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-19 23:10:26,420 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-19 23:10:26,420 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,421 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:10:26,422 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:10:26,423 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:10:26,423 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:10:26,423 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-19 23:10:26,423 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-19 23:10:26,423 INFO L277 CegarLoopResult]: At program point L578(lines 578 594) the Hoare annotation is: true [2020-10-19 23:10:26,424 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-19 23:10:26,424 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-19 23:10:26,424 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-19 23:10:26,424 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,424 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,425 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,425 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,425 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,425 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:10:26,425 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:10:26,426 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:10:26,426 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:10:26,426 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:10:26,426 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-19 23:10:26,426 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-19 23:10:26,427 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-19 23:10:26,427 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:10:26,427 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-19 23:10:26,427 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,427 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-19 23:10:26,428 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-19 23:10:26,429 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-19 23:10:26,429 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:10:26,429 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:10:26,429 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:10:26,429 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:10:26,430 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:10:26,430 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-19 23:10:26,430 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-19 23:10:26,430 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-19 23:10:26,430 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= 8 ~a19~0) .cse0 .cse1) (and (= ~a10~0 1) .cse0 .cse1) (and .cse0 .cse1 (<= ~a1~0 206)))) [2020-10-19 23:10:26,431 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-19 23:10:26,431 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,431 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,431 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,431 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,432 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:10:26,432 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,432 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,432 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-19 23:10:26,432 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:10:26,433 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:10:26,434 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:10:26,434 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-19 23:10:26,434 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-19 23:10:26,434 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:10:26,434 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-19 23:10:26,435 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-19 23:10:26,435 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,435 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,435 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,435 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,436 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,436 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,436 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-19 23:10:26,436 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-19 23:10:26,436 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-19 23:10:26,437 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:10:26,437 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:10:26,437 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:10:26,437 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:10:26,437 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:10:26,438 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:10:26,438 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-19 23:10:26,438 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-19 23:10:26,438 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-19 23:10:26,438 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,439 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:10:26,440 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:10:26,441 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:10:26,441 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:10:26,441 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:10:26,441 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:10:26,441 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-19 23:10:26,442 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:10:26,443 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,444 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:10:26,444 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-19 23:10:26,444 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-19 23:10:26,444 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-19 23:10:26,444 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:10:26,445 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,446 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,447 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,447 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-19 23:10:26,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:10:26 BoogieIcfgContainer [2020-10-19 23:10:26,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:10:26,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:10:26,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:10:26,467 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:10:26,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:10:15" (3/4) ... [2020-10-19 23:10:26,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:10:26,491 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:10:26,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:10:26,494 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:26,495 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:10:26,685 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:10:26,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:10:26,687 INFO L168 Benchmark]: Toolchain (without parser) took 13948.11 ms. Allocated memory was 35.1 MB in the beginning and 152.0 MB in the end (delta: 116.9 MB). Free memory was 13.8 MB in the beginning and 50.9 MB in the end (delta: -37.2 MB). Peak memory consumption was 79.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,688 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 33.0 MB. Free memory was 9.4 MB in the beginning and 9.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.28 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 12.8 MB in the beginning and 22.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.94 ms. Allocated memory is still 44.6 MB. Free memory was 22.2 MB in the beginning and 14.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,690 INFO L168 Benchmark]: Boogie Preprocessor took 114.93 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 14.2 MB in the beginning and 23.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,690 INFO L168 Benchmark]: RCFGBuilder took 1554.12 ms. Allocated memory was 47.2 MB in the beginning and 67.6 MB in the end (delta: 20.4 MB). Free memory was 23.0 MB in the beginning and 21.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,691 INFO L168 Benchmark]: TraceAbstraction took 11247.59 ms. Allocated memory was 67.6 MB in the beginning and 152.0 MB in the end (delta: 84.4 MB). Free memory was 20.5 MB in the beginning and 70.7 MB in the end (delta: -50.2 MB). Peak memory consumption was 96.0 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,691 INFO L168 Benchmark]: Witness Printer took 218.38 ms. Allocated memory is still 152.0 MB. Free memory was 70.7 MB in the beginning and 50.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:10:26,695 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 33.0 MB. Free memory was 9.4 MB in the beginning and 9.4 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 674.28 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 12.8 MB in the beginning and 22.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 127.94 ms. Allocated memory is still 44.6 MB. Free memory was 22.2 MB in the beginning and 14.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 114.93 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 14.2 MB in the beginning and 23.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1554.12 ms. Allocated memory was 47.2 MB in the beginning and 67.6 MB in the end (delta: 20.4 MB). Free memory was 23.0 MB in the beginning and 21.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 11247.59 ms. Allocated memory was 67.6 MB in the beginning and 152.0 MB in the end (delta: 84.4 MB). Free memory was 20.5 MB in the beginning and 70.7 MB in the end (delta: -50.2 MB). Peak memory consumption was 96.0 MB. Max. memory is 14.3 GB. * Witness Printer took 218.38 ms. Allocated memory is still 152.0 MB. Free memory was 70.7 MB in the beginning and 50.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((8 <= a19 && 14 == a4) && a12 == 0) || ((a10 == 1 && 14 == a4) && a12 == 0)) || ((14 == a4 && a12 == 0) && a1 <= 206) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((8 <= a19 && 14 == a4) && a12 == 0) || ((a10 == 1 && 14 == a4) && a12 == 0)) || ((14 == a4 && a12 == 0) && a1 <= 206) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 683 SDtfs, 1032 SDslu, 53 SDs, 0 SdLazy, 3963 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1811occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 848 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 43 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1312 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 446 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1755 NumberOfCodeBlocks, 1755 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1745 ConstructedInterpolants, 0 QuantifiedInterpolants, 1251686 SizeOfPredicates, 1 NumberOfNonLiveVariables, 203 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1182/1195 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...