./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label07.c -s /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ca819190f643deb29414a088c4aa6e4cb582023 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:39,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:39,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:39,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:39,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:39,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:39,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:39,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:39,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:39,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:39,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:39,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:39,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:39,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:39,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:39,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:39,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:39,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:39,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:39,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:39,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:39,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:39,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:39,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:39,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:39,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:39,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:39,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:39,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:39,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:39,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:39,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:39,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:39,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:39,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:39,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:39,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:39,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:39,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:39,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:39,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:39,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:39,402 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:39,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:39,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:39,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:39,404 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:39,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:39,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:39,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:39,406 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:39,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:39,406 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:39,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:39,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:39,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:39,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:39,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:39,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:39,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:39,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:39,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:39,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:39,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:39,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:39,408 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 1ca819190f643deb29414a088c4aa6e4cb582023 [2019-10-22 09:02:39,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:39,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:39,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:39,483 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:39,483 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:39,484 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label07.c [2019-10-22 09:02:39,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/data/c181e2e5a/fb76348b0cb448528a2440c8111b8a35/FLAGb9d43c0b5 [2019-10-22 09:02:39,978 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:39,978 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/sv-benchmarks/c/eca-rers2012/Problem01_label07.c [2019-10-22 09:02:39,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/data/c181e2e5a/fb76348b0cb448528a2440c8111b8a35/FLAGb9d43c0b5 [2019-10-22 09:02:40,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/data/c181e2e5a/fb76348b0cb448528a2440c8111b8a35 [2019-10-22 09:02:40,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:40,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:40,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:40,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:40,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:40,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d47d737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40, skipping insertion in model container [2019-10-22 09:02:40,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,297 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:40,355 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:40,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:40,752 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:40,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:40,885 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:40,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40 WrapperNode [2019-10-22 09:02:40,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:40,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:40,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:40,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:40,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:40,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:40,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:40,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:40,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:40,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:41,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:41,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:41,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... [2019-10-22 09:02:41,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:41,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:41,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:41,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:41,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:41,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:42,242 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:42,242 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 09:02:42,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:42 BoogieIcfgContainer [2019-10-22 09:02:42,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:42,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:42,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:42,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:40" (1/3) ... [2019-10-22 09:02:42,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aeec94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:42, skipping insertion in model container [2019-10-22 09:02:42,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:40" (2/3) ... [2019-10-22 09:02:42,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aeec94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:42, skipping insertion in model container [2019-10-22 09:02:42,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:42" (3/3) ... [2019-10-22 09:02:42,251 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label07.c [2019-10-22 09:02:42,268 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:42,278 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:42,295 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:42,338 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:42,338 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:42,338 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:42,338 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:42,338 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:42,339 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:42,339 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:42,339 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:42,355 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-10-22 09:02:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-10-22 09:02:42,364 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:42,365 INFO L380 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] [2019-10-22 09:02:42,367 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:42,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:42,372 INFO L82 PathProgramCache]: Analyzing trace with hash -921862001, now seen corresponding path program 1 times [2019-10-22 09:02:42,379 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:42,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483485524] [2019-10-22 09:02:42,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:42,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:42,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:42,756 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483485524] [2019-10-22 09:02:42,757 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:42,758 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:42,758 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937650399] [2019-10-22 09:02:42,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:42,763 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:42,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:42,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:42,780 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-10-22 09:02:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:43,972 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-10-22 09:02:43,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:02:43,974 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2019-10-22 09:02:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:43,987 INFO L225 Difference]: With dead ends: 662 [2019-10-22 09:02:43,988 INFO L226 Difference]: Without dead ends: 397 [2019-10-22 09:02:43,991 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:44,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-22 09:02:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-10-22 09:02:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-22 09:02:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 559 transitions. [2019-10-22 09:02:44,065 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 559 transitions. Word has length 104 [2019-10-22 09:02:44,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:44,066 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 559 transitions. [2019-10-22 09:02:44,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:44,066 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 559 transitions. [2019-10-22 09:02:44,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 09:02:44,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:44,071 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:44,071 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:44,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1868535399, now seen corresponding path program 1 times [2019-10-22 09:02:44,072 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384769634] [2019-10-22 09:02:44,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,072 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:44,119 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:44,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384769634] [2019-10-22 09:02:44,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:44,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:44,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278346378] [2019-10-22 09:02:44,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:44,123 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:44,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:44,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:44,124 INFO L87 Difference]: Start difference. First operand 397 states and 559 transitions. Second operand 4 states. [2019-10-22 09:02:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:44,697 INFO L93 Difference]: Finished difference Result 1185 states and 1672 transitions. [2019-10-22 09:02:44,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:44,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 109 [2019-10-22 09:02:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:44,701 INFO L225 Difference]: With dead ends: 1185 [2019-10-22 09:02:44,701 INFO L226 Difference]: Without dead ends: 790 [2019-10-22 09:02:44,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-22 09:02:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-10-22 09:02:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-10-22 09:02:44,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1066 transitions. [2019-10-22 09:02:44,732 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1066 transitions. Word has length 109 [2019-10-22 09:02:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:44,733 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1066 transitions. [2019-10-22 09:02:44,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:44,733 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1066 transitions. [2019-10-22 09:02:44,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-22 09:02:44,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:44,738 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:44,739 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:44,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:44,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1841343471, now seen corresponding path program 1 times [2019-10-22 09:02:44,739 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:44,739 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532092987] [2019-10-22 09:02:44,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,740 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:44,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-22 09:02:44,820 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532092987] [2019-10-22 09:02:44,821 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:44,821 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:44,821 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091905423] [2019-10-22 09:02:44,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:44,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:44,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:44,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:44,822 INFO L87 Difference]: Start difference. First operand 790 states and 1066 transitions. Second operand 3 states. [2019-10-22 09:02:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:45,280 INFO L93 Difference]: Finished difference Result 1971 states and 2686 transitions. [2019-10-22 09:02:45,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:45,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-22 09:02:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:45,286 INFO L225 Difference]: With dead ends: 1971 [2019-10-22 09:02:45,286 INFO L226 Difference]: Without dead ends: 1183 [2019-10-22 09:02:45,288 INFO L600 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 [2019-10-22 09:02:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2019-10-22 09:02:45,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 921. [2019-10-22 09:02:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-10-22 09:02:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1246 transitions. [2019-10-22 09:02:45,318 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1246 transitions. Word has length 130 [2019-10-22 09:02:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:45,319 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1246 transitions. [2019-10-22 09:02:45,319 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1246 transitions. [2019-10-22 09:02:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-22 09:02:45,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:45,327 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:45,327 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:45,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1994696756, now seen corresponding path program 1 times [2019-10-22 09:02:45,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:45,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700508874] [2019-10-22 09:02:45,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:45,430 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-22 09:02:45,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700508874] [2019-10-22 09:02:45,431 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:45,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:45,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414120435] [2019-10-22 09:02:45,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:45,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:45,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:45,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:45,432 INFO L87 Difference]: Start difference. First operand 921 states and 1246 transitions. Second operand 3 states. [2019-10-22 09:02:45,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:45,850 INFO L93 Difference]: Finished difference Result 2233 states and 2997 transitions. [2019-10-22 09:02:45,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:45,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-22 09:02:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:45,854 INFO L225 Difference]: With dead ends: 2233 [2019-10-22 09:02:45,854 INFO L226 Difference]: Without dead ends: 1314 [2019-10-22 09:02:45,855 INFO L600 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 [2019-10-22 09:02:45,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-10-22 09:02:45,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1183. [2019-10-22 09:02:45,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2019-10-22 09:02:45,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1526 transitions. [2019-10-22 09:02:45,882 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1526 transitions. Word has length 166 [2019-10-22 09:02:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:45,884 INFO L462 AbstractCegarLoop]: Abstraction has 1183 states and 1526 transitions. [2019-10-22 09:02:45,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1526 transitions. [2019-10-22 09:02:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-22 09:02:45,889 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:45,889 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:45,889 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:45,890 INFO L82 PathProgramCache]: Analyzing trace with hash -317868088, now seen corresponding path program 1 times [2019-10-22 09:02:45,890 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:45,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013593887] [2019-10-22 09:02:45,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,890 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:45,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-22 09:02:46,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013593887] [2019-10-22 09:02:46,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:46,023 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:46,023 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366225117] [2019-10-22 09:02:46,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:46,024 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:46,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:46,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:46,024 INFO L87 Difference]: Start difference. First operand 1183 states and 1526 transitions. Second operand 4 states. [2019-10-22 09:02:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:46,655 INFO L93 Difference]: Finished difference Result 2500 states and 3204 transitions. [2019-10-22 09:02:46,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:46,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-10-22 09:02:46,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:46,660 INFO L225 Difference]: With dead ends: 2500 [2019-10-22 09:02:46,660 INFO L226 Difference]: Without dead ends: 1319 [2019-10-22 09:02:46,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:46,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2019-10-22 09:02:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1314. [2019-10-22 09:02:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1314 states. [2019-10-22 09:02:46,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1663 transitions. [2019-10-22 09:02:46,689 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1663 transitions. Word has length 174 [2019-10-22 09:02:46,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:46,689 INFO L462 AbstractCegarLoop]: Abstraction has 1314 states and 1663 transitions. [2019-10-22 09:02:46,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1663 transitions. [2019-10-22 09:02:46,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-22 09:02:46,692 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:46,692 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:46,693 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:46,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:46,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2132251648, now seen corresponding path program 1 times [2019-10-22 09:02:46,693 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:46,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299596385] [2019-10-22 09:02:46,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:46,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:46,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-22 09:02:46,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299596385] [2019-10-22 09:02:46,775 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:46,775 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:46,775 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117286038] [2019-10-22 09:02:46,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:46,776 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:46,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:46,777 INFO L87 Difference]: Start difference. First operand 1314 states and 1663 transitions. Second operand 5 states. [2019-10-22 09:02:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:47,656 INFO L93 Difference]: Finished difference Result 2757 states and 3527 transitions. [2019-10-22 09:02:47,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:47,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2019-10-22 09:02:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:47,662 INFO L225 Difference]: With dead ends: 2757 [2019-10-22 09:02:47,662 INFO L226 Difference]: Without dead ends: 1576 [2019-10-22 09:02:47,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2019-10-22 09:02:47,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2019-10-22 09:02:47,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-10-22 09:02:47,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1949 transitions. [2019-10-22 09:02:47,695 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1949 transitions. Word has length 178 [2019-10-22 09:02:47,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:47,695 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1949 transitions. [2019-10-22 09:02:47,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:47,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1949 transitions. [2019-10-22 09:02:47,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-22 09:02:47,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:47,699 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:47,699 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:47,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:47,699 INFO L82 PathProgramCache]: Analyzing trace with hash 99708699, now seen corresponding path program 1 times [2019-10-22 09:02:47,699 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:47,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935225790] [2019-10-22 09:02:47,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:47,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:47,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2019-10-22 09:02:47,777 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935225790] [2019-10-22 09:02:47,778 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:47,778 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 09:02:47,778 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120711008] [2019-10-22 09:02:47,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:47,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:47,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:47,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:47,779 INFO L87 Difference]: Start difference. First operand 1576 states and 1949 transitions. Second operand 3 states. [2019-10-22 09:02:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:48,206 INFO L93 Difference]: Finished difference Result 3412 states and 4236 transitions. [2019-10-22 09:02:48,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:48,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-22 09:02:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:48,212 INFO L225 Difference]: With dead ends: 3412 [2019-10-22 09:02:48,212 INFO L226 Difference]: Without dead ends: 1707 [2019-10-22 09:02:48,214 INFO L600 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 [2019-10-22 09:02:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-10-22 09:02:48,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1576. [2019-10-22 09:02:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1576 states. [2019-10-22 09:02:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 1732 transitions. [2019-10-22 09:02:48,243 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 1732 transitions. Word has length 181 [2019-10-22 09:02:48,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:48,243 INFO L462 AbstractCegarLoop]: Abstraction has 1576 states and 1732 transitions. [2019-10-22 09:02:48,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 1732 transitions. [2019-10-22 09:02:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-22 09:02:48,247 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:48,247 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:02:48,247 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:48,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1795821409, now seen corresponding path program 1 times [2019-10-22 09:02:48,248 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:48,248 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965206792] [2019-10-22 09:02:48,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,249 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-22 09:02:48,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965206792] [2019-10-22 09:02:48,331 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:48,331 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:02:48,332 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477225803] [2019-10-22 09:02:48,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:48,332 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:48,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:48,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:02:48,333 INFO L87 Difference]: Start difference. First operand 1576 states and 1732 transitions. Second operand 3 states. [2019-10-22 09:02:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:48,657 INFO L93 Difference]: Finished difference Result 3543 states and 3930 transitions. [2019-10-22 09:02:48,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:48,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-22 09:02:48,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:48,663 INFO L225 Difference]: With dead ends: 3543 [2019-10-22 09:02:48,663 INFO L226 Difference]: Without dead ends: 2100 [2019-10-22 09:02:48,665 INFO L600 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 [2019-10-22 09:02:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-10-22 09:02:48,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1707. [2019-10-22 09:02:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-10-22 09:02:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1869 transitions. [2019-10-22 09:02:48,698 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1869 transitions. Word has length 196 [2019-10-22 09:02:48,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:48,698 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1869 transitions. [2019-10-22 09:02:48,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1869 transitions. [2019-10-22 09:02:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-22 09:02:48,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:48,703 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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] [2019-10-22 09:02:48,703 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:48,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:48,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1683837293, now seen corresponding path program 1 times [2019-10-22 09:02:48,704 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:48,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438821534] [2019-10-22 09:02:48,704 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,704 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:48,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 205 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-22 09:02:48,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438821534] [2019-10-22 09:02:48,881 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910165017] [2019-10-22 09:02:48,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:49,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:02:49,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:02:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-22 09:02:49,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 09:02:49,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-10-22 09:02:49,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938892235] [2019-10-22 09:02:49,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:02:49,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:49,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:02:49,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:49,080 INFO L87 Difference]: Start difference. First operand 1707 states and 1869 transitions. Second operand 3 states. [2019-10-22 09:02:49,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:49,421 INFO L93 Difference]: Finished difference Result 1707 states and 1869 transitions. [2019-10-22 09:02:49,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:02:49,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-22 09:02:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:49,422 INFO L225 Difference]: With dead ends: 1707 [2019-10-22 09:02:49,422 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:49,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 225 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:49,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:49,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:49,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2019-10-22 09:02:49,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:49,424 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:49,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:02:49,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:49,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:49,626 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 09:02:49,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:02:49,820 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-22 09:02:49,820 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-22 09:02:49,820 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-10-22 09:02:49,821 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 488) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-22 09:02:49,824 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-10-22 09:02:49,825 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-10-22 09:02:49,826 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-10-22 09:02:49,826 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-22 09:02:49,827 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-10-22 09:02:49,828 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-10-22 09:02:49,828 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-10-22 09:02:49,828 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-10-22 09:02:49,828 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-10-22 09:02:49,829 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-10-22 09:02:49,829 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-22 09:02:49,829 INFO L439 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and (= ~a17~0 1) .cse0 (= ~a20~0 1)) (and .cse0 (= 15 ~a8~0)) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-10-22 09:02:49,831 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,831 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,831 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,831 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,831 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-22 09:02:49,832 INFO L446 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-22 09:02:49,833 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-22 09:02:49,834 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-22 09:02:49,835 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and (not (= ~a16~0 6)) .cse0) (and (= ~a17~0 1) .cse0 (= ~a20~0 1)) (and .cse0 (= 15 ~a8~0)) (and (= 1 ~a7~0) (<= ~a21~0 0)))) [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-22 09:02:49,836 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-10-22 09:02:49,837 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-10-22 09:02:49,842 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-10-22 09:02:49,842 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-22 09:02:49,843 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,844 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:02:49,845 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-22 09:02:49,846 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-22 09:02:49,846 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-10-22 09:02:49,848 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-10-22 09:02:49,849 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-10-22 09:02:49,849 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-10-22 09:02:49,849 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-22 09:02:49,849 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-22 09:02:49,849 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-22 09:02:49,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:49 BoogieIcfgContainer [2019-10-22 09:02:49,864 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:49,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:49,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:49,865 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:49,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:42" (3/4) ... [2019-10-22 09:02:49,871 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:49,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 09:02:49,899 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 09:02:50,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_94968e71-21d3-4c60-b1b5-23a11cfe85ee/bin/uautomizer/witness.graphml [2019-10-22 09:02:50,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:50,046 INFO L168 Benchmark]: Toolchain (without parser) took 9766.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.7 MB). Free memory was 939.1 MB in the beginning and 1.0 GB in the end (delta: -95.6 MB). Peak memory consumption was 168.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,049 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:50,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,050 INFO L168 Benchmark]: Boogie Preprocessor took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,050 INFO L168 Benchmark]: RCFGBuilder took 1202.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.3 MB in the end (delta: 109.4 MB). Peak memory consumption was 109.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,050 INFO L168 Benchmark]: TraceAbstraction took 7620.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 124.8 MB). Free memory was 990.3 MB in the beginning and 1.1 GB in the end (delta: -72.0 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,051 INFO L168 Benchmark]: Witness Printer took 179.50 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:50,052 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 605.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 81.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1202.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.3 MB in the end (delta: 109.4 MB). Peak memory consumption was 109.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7620.68 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 124.8 MB). Free memory was 990.3 MB in the beginning and 1.1 GB in the end (delta: -72.0 MB). Peak memory consumption was 52.8 MB. Max. memory is 11.5 GB. * Witness Printer took 179.50 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 488]: 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: 30]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || ((a17 == 1 && a21 == 1) && a20 == 1)) || (a21 == 1 && 15 == a8)) || (1 == a7 && a21 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((!(a16 == 6) && a21 == 1) || ((a17 == 1 && a21 == 1) && a20 == 1)) || (a21 == 1 && 15 == a8)) || (1 == a7 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 7.5s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 724 SDtfs, 1765 SDslu, 86 SDs, 0 SdLazy, 4165 SolverSat, 647 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 254 GetRequests, 234 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1707occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 922 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 67 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1481 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1688 NumberOfCodeBlocks, 1688 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1678 ConstructedInterpolants, 0 QuantifiedInterpolants, 616192 SizeOfPredicates, 1 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 1401/1428 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...