./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label53.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/Problem02_label53.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 4538cbacd6e9f41cb35d040a67721b121cce3c8d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:31:46,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:46,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:46,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:46,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:46,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:46,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:46,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:46,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:46,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:46,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:46,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:46,348 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:46,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:46,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:46,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:46,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:46,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:46,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:46,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:46,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:46,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:46,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:46,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:46,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:46,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:46,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:46,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:46,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:46,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:46,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:46,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:46,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:46,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:46,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:46,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:46,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:46,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:46,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:46,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:46,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:46,402 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:46,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:46,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:46,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:46,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:46,447 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:46,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:46,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:46,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:46,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:46,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:46,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:46,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:46,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:46,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:46,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:46,452 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:46,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:46,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:46,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:46,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:46,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:46,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:46,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:46,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:46,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:46,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:46,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:46,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:46,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:46,460 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 -> 4538cbacd6e9f41cb35d040a67721b121cce3c8d [2020-10-19 22:31:46,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:46,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:46,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:46,695 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:46,698 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:46,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label53.c [2020-10-19 22:31:46,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeddf0063/539b5230b1f04c7994aa7b6df8f37a9b/FLAGf84dddc2d [2020-10-19 22:31:47,339 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:47,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label53.c [2020-10-19 22:31:47,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeddf0063/539b5230b1f04c7994aa7b6df8f37a9b/FLAGf84dddc2d [2020-10-19 22:31:47,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeddf0063/539b5230b1f04c7994aa7b6df8f37a9b [2020-10-19 22:31:47,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:47,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:47,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:47,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:47,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:47,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:47" (1/1) ... [2020-10-19 22:31:47,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdf81d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:47, skipping insertion in model container [2020-10-19 22:31:47,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:47" (1/1) ... [2020-10-19 22:31:47,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:47,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:48,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:48,188 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:48,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:48,361 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48 WrapperNode [2020-10-19 22:31:48,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:48,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:48,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:48,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:48,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:48,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:48,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:48,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:48,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... [2020-10-19 22:31:48,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:48,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:48,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:48,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:48,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:50,092 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:50,092 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:50,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:50 BoogieIcfgContainer [2020-10-19 22:31:50,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:50,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:50,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:50,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:50,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:47" (1/3) ... [2020-10-19 22:31:50,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb00f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:50, skipping insertion in model container [2020-10-19 22:31:50,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:48" (2/3) ... [2020-10-19 22:31:50,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb00f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:50, skipping insertion in model container [2020-10-19 22:31:50,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:50" (3/3) ... [2020-10-19 22:31:50,103 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label53.c [2020-10-19 22:31:50,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:50,124 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:50,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:50,166 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:50,167 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:50,167 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:50,167 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:50,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:50,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:50,168 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:50,168 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-19 22:31:50,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:50,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:50,211 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:50,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:50,218 INFO L82 PathProgramCache]: Analyzing trace with hash 96826285, now seen corresponding path program 1 times [2020-10-19 22:31:50,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:50,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646790049] [2020-10-19 22:31:50,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:50,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646790049] [2020-10-19 22:31:50,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:50,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:50,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039668024] [2020-10-19 22:31:50,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:50,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:50,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:50,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:50,709 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:51,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:51,562 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-10-19 22:31:51,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:51,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-10-19 22:31:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:51,584 INFO L225 Difference]: With dead ends: 640 [2020-10-19 22:31:51,584 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:51,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:51,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-10-19 22:31:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-19 22:31:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-10-19 22:31:51,655 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 138 [2020-10-19 22:31:51,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:51,656 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-10-19 22:31:51,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:51,656 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-10-19 22:31:51,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-19 22:31:51,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:51,661 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:51,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:51,673 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:51,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:51,674 INFO L82 PathProgramCache]: Analyzing trace with hash -247705766, now seen corresponding path program 1 times [2020-10-19 22:31:51,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:51,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318027290] [2020-10-19 22:31:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:51,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318027290] [2020-10-19 22:31:51,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:51,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:51,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771352080] [2020-10-19 22:31:51,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:51,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:51,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:51,814 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-10-19 22:31:52,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:52,479 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-10-19 22:31:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:52,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-10-19 22:31:52,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:52,490 INFO L225 Difference]: With dead ends: 910 [2020-10-19 22:31:52,491 INFO L226 Difference]: Without dead ends: 599 [2020-10-19 22:31:52,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-19 22:31:52,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-10-19 22:31:52,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-19 22:31:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-10-19 22:31:52,548 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 142 [2020-10-19 22:31:52,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:52,549 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-10-19 22:31:52,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-10-19 22:31:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-19 22:31:52,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:52,558 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:52,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:52,561 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:52,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:52,561 INFO L82 PathProgramCache]: Analyzing trace with hash -683348953, now seen corresponding path program 1 times [2020-10-19 22:31:52,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:52,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797654748] [2020-10-19 22:31:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:52,701 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:52,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797654748] [2020-10-19 22:31:52,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106357178] [2020-10-19 22:31:52,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:52,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:31:52,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-19 22:31:52,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:52,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-19 22:31:52,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001512919] [2020-10-19 22:31:52,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:52,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:52,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:52,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:52,876 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-10-19 22:31:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:53,533 INFO L93 Difference]: Finished difference Result 1613 states and 2116 transitions. [2020-10-19 22:31:53,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:53,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-10-19 22:31:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:53,544 INFO L225 Difference]: With dead ends: 1613 [2020-10-19 22:31:53,544 INFO L226 Difference]: Without dead ends: 1019 [2020-10-19 22:31:53,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2020-10-19 22:31:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2020-10-19 22:31:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2020-10-19 22:31:53,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1289 transitions. [2020-10-19 22:31:53,572 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1289 transitions. Word has length 147 [2020-10-19 22:31:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:53,573 INFO L481 AbstractCegarLoop]: Abstraction has 1019 states and 1289 transitions. [2020-10-19 22:31:53,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:53,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1289 transitions. [2020-10-19 22:31:53,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-19 22:31:53,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:53,578 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:53,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:53,792 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:53,793 INFO L82 PathProgramCache]: Analyzing trace with hash -43273797, now seen corresponding path program 1 times [2020-10-19 22:31:53,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:53,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682634910] [2020-10-19 22:31:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-19 22:31:53,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682634910] [2020-10-19 22:31:53,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611268892] [2020-10-19 22:31:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:54,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:54,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:54,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:54,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:54,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486275936] [2020-10-19 22:31:54,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:54,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:54,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:54,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:54,263 INFO L87 Difference]: Start difference. First operand 1019 states and 1289 transitions. Second operand 3 states. [2020-10-19 22:31:54,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:54,988 INFO L93 Difference]: Finished difference Result 2597 states and 3363 transitions. [2020-10-19 22:31:54,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:54,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-19 22:31:54,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:54,997 INFO L225 Difference]: With dead ends: 2597 [2020-10-19 22:31:54,997 INFO L226 Difference]: Without dead ends: 1580 [2020-10-19 22:31:54,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:55,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2020-10-19 22:31:55,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1579. [2020-10-19 22:31:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1579 states. [2020-10-19 22:31:55,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2009 transitions. [2020-10-19 22:31:55,051 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2009 transitions. Word has length 171 [2020-10-19 22:31:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:55,051 INFO L481 AbstractCegarLoop]: Abstraction has 1579 states and 2009 transitions. [2020-10-19 22:31:55,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2009 transitions. [2020-10-19 22:31:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-19 22:31:55,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:55,056 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:55,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:55,270 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:55,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:55,271 INFO L82 PathProgramCache]: Analyzing trace with hash 341661572, now seen corresponding path program 1 times [2020-10-19 22:31:55,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:55,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73392916] [2020-10-19 22:31:55,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:55,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:55,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73392916] [2020-10-19 22:31:55,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307735330] [2020-10-19 22:31:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:55,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:55,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:55,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:55,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:55,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891003701] [2020-10-19 22:31:55,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:55,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:55,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:55,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:55,584 INFO L87 Difference]: Start difference. First operand 1579 states and 2009 transitions. Second operand 3 states. [2020-10-19 22:31:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:56,426 INFO L93 Difference]: Finished difference Result 3580 states and 4572 transitions. [2020-10-19 22:31:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:56,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-10-19 22:31:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:56,442 INFO L225 Difference]: With dead ends: 3580 [2020-10-19 22:31:56,442 INFO L226 Difference]: Without dead ends: 2003 [2020-10-19 22:31:56,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2020-10-19 22:31:56,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1719. [2020-10-19 22:31:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1719 states. [2020-10-19 22:31:56,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2164 transitions. [2020-10-19 22:31:56,497 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2164 transitions. Word has length 171 [2020-10-19 22:31:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:56,499 INFO L481 AbstractCegarLoop]: Abstraction has 1719 states and 2164 transitions. [2020-10-19 22:31:56,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:56,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2164 transitions. [2020-10-19 22:31:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-10-19 22:31:56,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:56,507 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:56,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:56,721 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:56,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:56,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1481073270, now seen corresponding path program 1 times [2020-10-19 22:31:56,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:56,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779557744] [2020-10-19 22:31:56,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:56,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779557744] [2020-10-19 22:31:56,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:56,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 22:31:56,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108218386] [2020-10-19 22:31:56,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 22:31:56,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:56,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 22:31:56,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:56,955 INFO L87 Difference]: Start difference. First operand 1719 states and 2164 transitions. Second operand 5 states. [2020-10-19 22:31:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:58,175 INFO L93 Difference]: Finished difference Result 4470 states and 5615 transitions. [2020-10-19 22:31:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 22:31:58,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2020-10-19 22:31:58,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:58,188 INFO L225 Difference]: With dead ends: 4470 [2020-10-19 22:31:58,188 INFO L226 Difference]: Without dead ends: 2467 [2020-10-19 22:31:58,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-19 22:31:58,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2467 states. [2020-10-19 22:31:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2467 to 2419. [2020-10-19 22:31:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2419 states. [2020-10-19 22:31:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 2867 transitions. [2020-10-19 22:31:58,281 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 2867 transitions. Word has length 172 [2020-10-19 22:31:58,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:58,281 INFO L481 AbstractCegarLoop]: Abstraction has 2419 states and 2867 transitions. [2020-10-19 22:31:58,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 22:31:58,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 2867 transitions. [2020-10-19 22:31:58,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-19 22:31:58,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:58,291 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:58,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:31:58,292 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:58,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:58,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1908325648, now seen corresponding path program 1 times [2020-10-19 22:31:58,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:58,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309853637] [2020-10-19 22:31:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:58,505 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 40 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:58,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309853637] [2020-10-19 22:31:58,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677510852] [2020-10-19 22:31:58,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:58,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:58,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-19 22:31:58,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:58,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 22:31:58,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982789759] [2020-10-19 22:31:58,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:58,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:58,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:58,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:58,752 INFO L87 Difference]: Start difference. First operand 2419 states and 2867 transitions. Second operand 3 states. [2020-10-19 22:31:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:59,414 INFO L93 Difference]: Finished difference Result 6812 states and 8109 transitions. [2020-10-19 22:31:59,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:59,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-10-19 22:31:59,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:59,435 INFO L225 Difference]: With dead ends: 6812 [2020-10-19 22:31:59,435 INFO L226 Difference]: Without dead ends: 4395 [2020-10-19 22:31:59,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4395 states. [2020-10-19 22:31:59,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4395 to 3975. [2020-10-19 22:31:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3975 states. [2020-10-19 22:31:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 4652 transitions. [2020-10-19 22:31:59,547 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 4652 transitions. Word has length 179 [2020-10-19 22:31:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:59,548 INFO L481 AbstractCegarLoop]: Abstraction has 3975 states and 4652 transitions. [2020-10-19 22:31:59,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 4652 transitions. [2020-10-19 22:31:59,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-19 22:31:59,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:59,557 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:59,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:59,773 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:59,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:59,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1521495779, now seen corresponding path program 1 times [2020-10-19 22:31:59,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:59,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980229003] [2020-10-19 22:31:59,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:59,836 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-19 22:31:59,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980229003] [2020-10-19 22:31:59,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:59,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:59,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147068531] [2020-10-19 22:31:59,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:59,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:59,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:59,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:59,839 INFO L87 Difference]: Start difference. First operand 3975 states and 4652 transitions. Second operand 3 states. [2020-10-19 22:32:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:32:00,554 INFO L93 Difference]: Finished difference Result 8509 states and 9983 transitions. [2020-10-19 22:32:00,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:32:00,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-10-19 22:32:00,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:32:00,575 INFO L225 Difference]: With dead ends: 8509 [2020-10-19 22:32:00,575 INFO L226 Difference]: Without dead ends: 4536 [2020-10-19 22:32:00,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:32:00,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2020-10-19 22:32:00,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 4255. [2020-10-19 22:32:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2020-10-19 22:32:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 4899 transitions. [2020-10-19 22:32:00,955 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 4899 transitions. Word has length 183 [2020-10-19 22:32:00,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:32:00,956 INFO L481 AbstractCegarLoop]: Abstraction has 4255 states and 4899 transitions. [2020-10-19 22:32:00,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:32:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 4899 transitions. [2020-10-19 22:32:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-19 22:32:00,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:32:00,965 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:32:00,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:32:00,966 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:32:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:32:00,967 INFO L82 PathProgramCache]: Analyzing trace with hash 782453410, now seen corresponding path program 1 times [2020-10-19 22:32:00,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:32:00,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737228368] [2020-10-19 22:32:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:32:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:32:01,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737228368] [2020-10-19 22:32:01,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:32:01,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:32:01,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311276089] [2020-10-19 22:32:01,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:32:01,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:32:01,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:32:01,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:32:01,054 INFO L87 Difference]: Start difference. First operand 4255 states and 4899 transitions. Second operand 3 states. [2020-10-19 22:32:01,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:32:01,752 INFO L93 Difference]: Finished difference Result 8368 states and 9627 transitions. [2020-10-19 22:32:01,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:32:01,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-10-19 22:32:01,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:32:01,772 INFO L225 Difference]: With dead ends: 8368 [2020-10-19 22:32:01,773 INFO L226 Difference]: Without dead ends: 4115 [2020-10-19 22:32:01,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:32:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2020-10-19 22:32:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 3555. [2020-10-19 22:32:01,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3555 states. [2020-10-19 22:32:01,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3555 states to 3555 states and 3937 transitions. [2020-10-19 22:32:01,851 INFO L78 Accepts]: Start accepts. Automaton has 3555 states and 3937 transitions. Word has length 191 [2020-10-19 22:32:01,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:32:01,851 INFO L481 AbstractCegarLoop]: Abstraction has 3555 states and 3937 transitions. [2020-10-19 22:32:01,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:32:01,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3555 states and 3937 transitions. [2020-10-19 22:32:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-19 22:32:01,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:32:01,861 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:32:01,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:32:01,862 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:32:01,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:32:01,863 INFO L82 PathProgramCache]: Analyzing trace with hash 525837815, now seen corresponding path program 1 times [2020-10-19 22:32:01,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:32:01,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871778865] [2020-10-19 22:32:01,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:32:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-10-19 22:32:02,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871778865] [2020-10-19 22:32:02,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132863925] [2020-10-19 22:32:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:32:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:02,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:32:02,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:32:02,317 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-19 22:32:02,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:32:02,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:32:02,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182853388] [2020-10-19 22:32:02,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:32:02,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:32:02,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:32:02,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:02,320 INFO L87 Difference]: Start difference. First operand 3555 states and 3937 transitions. Second operand 3 states. [2020-10-19 22:32:02,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:32:02,956 INFO L93 Difference]: Finished difference Result 8090 states and 9036 transitions. [2020-10-19 22:32:02,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:32:02,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-10-19 22:32:02,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:32:02,976 INFO L225 Difference]: With dead ends: 8090 [2020-10-19 22:32:02,976 INFO L226 Difference]: Without dead ends: 4537 [2020-10-19 22:32:02,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4537 states. [2020-10-19 22:32:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4537 to 4535. [2020-10-19 22:32:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4535 states. [2020-10-19 22:32:03,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 5028 transitions. [2020-10-19 22:32:03,078 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 5028 transitions. Word has length 214 [2020-10-19 22:32:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:32:03,079 INFO L481 AbstractCegarLoop]: Abstraction has 4535 states and 5028 transitions. [2020-10-19 22:32:03,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:32:03,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 5028 transitions. [2020-10-19 22:32:03,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-19 22:32:03,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:32:03,090 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:32:03,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-19 22:32:03,304 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:32:03,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:32:03,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1456486724, now seen corresponding path program 1 times [2020-10-19 22:32:03,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:32:03,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726221198] [2020-10-19 22:32:03,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:32:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-19 22:32:03,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726221198] [2020-10-19 22:32:03,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342724216] [2020-10-19 22:32:03,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:32:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:03,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:32:03,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:32:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-19 22:32:03,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:32:03,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 22:32:03,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621366960] [2020-10-19 22:32:03,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:32:03,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:32:03,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:32:03,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:03,646 INFO L87 Difference]: Start difference. First operand 4535 states and 5028 transitions. Second operand 3 states. [2020-10-19 22:32:03,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:32:03,954 INFO L93 Difference]: Finished difference Result 8351 states and 9268 transitions. [2020-10-19 22:32:03,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:32:03,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-10-19 22:32:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:32:03,970 INFO L225 Difference]: With dead ends: 8351 [2020-10-19 22:32:03,970 INFO L226 Difference]: Without dead ends: 3818 [2020-10-19 22:32:03,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2020-10-19 22:32:04,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3538. [2020-10-19 22:32:04,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3538 states. [2020-10-19 22:32:04,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3538 states to 3538 states and 3872 transitions. [2020-10-19 22:32:04,041 INFO L78 Accepts]: Start accepts. Automaton has 3538 states and 3872 transitions. Word has length 217 [2020-10-19 22:32:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:32:04,041 INFO L481 AbstractCegarLoop]: Abstraction has 3538 states and 3872 transitions. [2020-10-19 22:32:04,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:32:04,042 INFO L276 IsEmpty]: Start isEmpty. Operand 3538 states and 3872 transitions. [2020-10-19 22:32:04,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-19 22:32:04,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:32:04,050 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:32:04,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:32:04,263 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:32:04,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:32:04,264 INFO L82 PathProgramCache]: Analyzing trace with hash 900263708, now seen corresponding path program 1 times [2020-10-19 22:32:04,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:32:04,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124148832] [2020-10-19 22:32:04,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:32:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:32:04,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124148832] [2020-10-19 22:32:04,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742823947] [2020-10-19 22:32:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:32:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:32:04,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:32:04,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:32:04,954 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-19 22:32:04,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:32:04,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:32:04,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451557958] [2020-10-19 22:32:04,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:32:04,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:32:04,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:32:04,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:04,958 INFO L87 Difference]: Start difference. First operand 3538 states and 3872 transitions. Second operand 3 states. [2020-10-19 22:32:05,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:32:05,448 INFO L93 Difference]: Finished difference Result 7208 states and 7901 transitions. [2020-10-19 22:32:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:32:05,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-10-19 22:32:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:32:05,449 INFO L225 Difference]: With dead ends: 7208 [2020-10-19 22:32:05,449 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:32:05,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:32:05,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:32:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:32:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:32:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:32:05,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2020-10-19 22:32:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:32:05,456 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:32:05,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:32:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:32:05,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:32:05,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:32:05,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:32:05,811 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 39 [2020-10-19 22:32:06,018 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-10-19 22:32:06,130 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2020-10-19 22:32:06,135 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:32:06,135 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:32:06,135 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:32:06,135 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:32:06,135 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:32:06,136 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:32:06,137 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:32:06,138 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:32:06,138 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:32:06,138 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:32:06,145 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:32:06,146 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:32:06,147 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,148 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:32:06,149 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:32:06,150 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:32:06,151 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:32:06,151 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:32:06,151 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:32:06,154 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:32:06,154 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:32:06,154 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:32:06,155 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,156 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:32:06,157 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:32:06,158 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:32:06,159 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:32:06,160 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:32:06,160 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:32:06,160 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:32:06,160 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:32:06,160 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:32:06,161 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:32:06,162 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:32:06,164 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:32:06,164 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:32:06,164 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:32:06,165 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:32:06,165 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:32:06,165 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse1 (= ~a19~0 1)) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (and .cse1 (= ~a21~0 1) .cse0) (and (<= ~a11~0 0) .cse1 .cse0) (and (<= ~a28~0 8) .cse0) (and (= ~a25~0 0) .cse0) (<= ~a17~0 7))) [2020-10-19 22:32:06,165 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,165 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:32:06,166 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:32:06,167 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:32:06,168 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse1 (= ~a19~0 1)) (.cse0 (<= ~a17~0 8))) (or (and (<= 10 ~a28~0) .cse0) (and .cse1 (= ~a21~0 1) .cse0) (and (<= ~a11~0 0) .cse1 .cse0) (and (<= ~a28~0 8) .cse0) (and (= ~a25~0 0) .cse0) (<= ~a17~0 7))) [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,169 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,170 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:32:06,171 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:32:06,172 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:32:06,173 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:32:06,174 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:32:06,175 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,176 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:32:06,177 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:32:06,178 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:32:06,179 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:32:06,180 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:32:06,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:32:06 BoogieIcfgContainer [2020-10-19 22:32:06,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:32:06,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:32:06,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:32:06,224 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:32:06,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:50" (3/4) ... [2020-10-19 22:32:06,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:32:06,270 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:32:06,271 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:32:06,273 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:32:06,275 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:32:06,592 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:32:06,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:32:06,595 INFO L168 Benchmark]: Toolchain (without parser) took 19012.48 ms. Allocated memory was 35.1 MB in the beginning and 237.0 MB in the end (delta: 201.9 MB). Free memory was 11.5 MB in the beginning and 103.4 MB in the end (delta: -91.9 MB). Peak memory consumption was 109.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,595 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-19 22:32:06,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.50 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 10.6 MB in the beginning and 21.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.92 ms. Allocated memory is still 43.5 MB. Free memory was 21.2 MB in the beginning and 15.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,597 INFO L168 Benchmark]: Boogie Preprocessor took 81.31 ms. Allocated memory is still 43.5 MB. Free memory was 15.6 MB in the beginning and 22.7 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,598 INFO L168 Benchmark]: RCFGBuilder took 1559.07 ms. Allocated memory was 43.5 MB in the beginning and 61.9 MB in the end (delta: 18.4 MB). Free memory was 22.7 MB in the beginning and 26.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,599 INFO L168 Benchmark]: TraceAbstraction took 16127.39 ms. Allocated memory was 61.9 MB in the beginning and 237.0 MB in the end (delta: 175.1 MB). Free memory was 25.2 MB in the beginning and 122.9 MB in the end (delta: -97.7 MB). Peak memory consumption was 77.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,599 INFO L168 Benchmark]: Witness Printer took 369.01 ms. Allocated memory is still 237.0 MB. Free memory was 122.9 MB in the beginning and 103.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:32:06,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 34.1 MB. Free memory was 19.8 MB in the beginning and 19.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 774.50 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 10.6 MB in the beginning and 21.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 90.92 ms. Allocated memory is still 43.5 MB. Free memory was 21.2 MB in the beginning and 15.6 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 81.31 ms. Allocated memory is still 43.5 MB. Free memory was 15.6 MB in the beginning and 22.7 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1559.07 ms. Allocated memory was 43.5 MB in the beginning and 61.9 MB in the end (delta: 18.4 MB). Free memory was 22.7 MB in the beginning and 26.1 MB in the end (delta: -3.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 16127.39 ms. Allocated memory was 61.9 MB in the beginning and 237.0 MB in the end (delta: 175.1 MB). Free memory was 25.2 MB in the beginning and 122.9 MB in the end (delta: -97.7 MB). Peak memory consumption was 77.4 MB. Max. memory is 14.3 GB. * Witness Printer took 369.01 ms. Allocated memory is still 237.0 MB. Free memory was 122.9 MB in the beginning and 103.4 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 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: 608]: Loop Invariant Derived loop invariant: (((((10 <= a28 && a17 <= 8) || ((a19 == 1 && a21 == 1) && a17 <= 8)) || ((a11 <= 0 && a19 == 1) && a17 <= 8)) || (a28 <= 8 && a17 <= 8)) || (a25 == 0 && a17 <= 8)) || a17 <= 7 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((10 <= a28 && a17 <= 8) || ((a19 == 1 && a21 == 1) && a17 <= 8)) || ((a11 <= 0 && a19 == 1) && a17 <= 8)) || (a28 <= 8 && a17 <= 8)) || (a25 == 0 && a17 <= 8)) || a17 <= 7 - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.5s, OverallIterations: 12, TraceHistogramMax: 5, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1388 SDtfs, 1505 SDslu, 227 SDs, 0 SdLazy, 4679 SolverSat, 853 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 1335 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4535occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1884 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 91 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2828 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3496 NumberOfCodeBlocks, 3496 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1838397 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2429 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 1235/1331 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...