./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label19.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_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label19.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/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 e94bad701dc31ef8837df5dc0d8bbaaa41b948fd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:55:55,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:55:55,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:55:55,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:55:55,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:55:55,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:55:55,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:55:55,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:55:55,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:55:55,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:55:55,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:55:55,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:55:55,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:55:55,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:55:55,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:55:55,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:55:55,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:55:55,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:55:55,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:55:55,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:55:55,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:55:55,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:55:55,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:55:55,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:55:55,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:55:55,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:55:55,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:55:55,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:55:55,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:55:55,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:55:55,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:55:55,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:55:55,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:55:55,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:55:55,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:55:55,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:55:55,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:55:55,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:55:55,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:55:55,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:55:55,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:55:55,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:55:55,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:55:55,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:55:55,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:55:55,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:55:55,975 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:55:55,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:55:55,975 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:55:55,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:55:55,977 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:55:55,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:55:55,977 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:55:55,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:55:55,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:55:55,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:55:55,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:55:55,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:55:55,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:55:55,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:55:55,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:55:55,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:55:55,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:55:55,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:55:55,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:55:55,979 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_5e91d074-6af8-4a45-9d3e-1487e805421b/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 -> e94bad701dc31ef8837df5dc0d8bbaaa41b948fd [2019-10-22 08:55:56,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:55:56,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:55:56,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:55:56,016 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:55:56,016 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:55:56,017 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem02_label19.c [2019-10-22 08:55:56,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/data/165142a49/ed896c1f6a5b486f87352ec2cc520193/FLAGb940ba861 [2019-10-22 08:55:56,507 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:55:56,508 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/sv-benchmarks/c/eca-rers2012/Problem02_label19.c [2019-10-22 08:55:56,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/data/165142a49/ed896c1f6a5b486f87352ec2cc520193/FLAGb940ba861 [2019-10-22 08:55:56,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/data/165142a49/ed896c1f6a5b486f87352ec2cc520193 [2019-10-22 08:55:56,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:55:56,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:55:56,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:56,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:55:56,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:55:56,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c737f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:56, skipping insertion in model container [2019-10-22 08:55:56,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:55:56" (1/1) ... [2019-10-22 08:55:56,552 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:55:56,590 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:55:56,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:56,972 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:55:57,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:55:57,125 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:55:57,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57 WrapperNode [2019-10-22 08:55:57,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:55:57,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:55:57,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:55:57,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:55:57,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:55:57,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:55:57,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... [2019-10-22 08:55:57,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:55:57,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:55:57,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:55:57,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:55:57,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/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 08:55:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:55:57,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:55:58,317 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:55:58,317 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:55:58,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:58 BoogieIcfgContainer [2019-10-22 08:55:58,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:55:58,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:55:58,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:55:58,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:55:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:55:56" (1/3) ... [2019-10-22 08:55:58,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67de21e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:58, skipping insertion in model container [2019-10-22 08:55:58,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:55:57" (2/3) ... [2019-10-22 08:55:58,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67de21e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:55:58, skipping insertion in model container [2019-10-22 08:55:58,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:58" (3/3) ... [2019-10-22 08:55:58,326 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label19.c [2019-10-22 08:55:58,336 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:55:58,343 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:55:58,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:55:58,381 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:55:58,381 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:55:58,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:55:58,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:55:58,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:55:58,382 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:55:58,382 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:55:58,382 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:55:58,400 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2019-10-22 08:55:58,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-22 08:55:58,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:55:58,413 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] [2019-10-22 08:55:58,415 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:55:58,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:55:58,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1607169461, now seen corresponding path program 1 times [2019-10-22 08:55:58,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:55:58,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052735161] [2019-10-22 08:55:58,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:55:58,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:55:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:55:58,836 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 08:55:58,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052735161] [2019-10-22 08:55:58,837 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:55:58,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:55:58,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782474634] [2019-10-22 08:55:58,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:55:58,845 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:55:58,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:55:58,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:55:58,861 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 4 states. [2019-10-22 08:56:00,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:00,160 INFO L93 Difference]: Finished difference Result 789 states and 1377 transitions. [2019-10-22 08:56:00,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:00,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-10-22 08:56:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:00,176 INFO L225 Difference]: With dead ends: 789 [2019-10-22 08:56:00,177 INFO L226 Difference]: Without dead ends: 465 [2019-10-22 08:56:00,181 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 08:56:00,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-10-22 08:56:00,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 309. [2019-10-22 08:56:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2019-10-22 08:56:00,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 453 transitions. [2019-10-22 08:56:00,243 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 453 transitions. Word has length 92 [2019-10-22 08:56:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:00,244 INFO L462 AbstractCegarLoop]: Abstraction has 309 states and 453 transitions. [2019-10-22 08:56:00,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 453 transitions. [2019-10-22 08:56:00,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-22 08:56:00,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:00,247 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:00,247 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:00,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1513780896, now seen corresponding path program 1 times [2019-10-22 08:56:00,247 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:00,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036441078] [2019-10-22 08:56:00,248 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,248 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:00,373 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036441078] [2019-10-22 08:56:00,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:00,374 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:00,374 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368950162] [2019-10-22 08:56:00,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:00,376 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:00,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:00,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:00,377 INFO L87 Difference]: Start difference. First operand 309 states and 453 transitions. Second operand 3 states. [2019-10-22 08:56:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:00,818 INFO L93 Difference]: Finished difference Result 899 states and 1323 transitions. [2019-10-22 08:56:00,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:00,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2019-10-22 08:56:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:00,823 INFO L225 Difference]: With dead ends: 899 [2019-10-22 08:56:00,823 INFO L226 Difference]: Without dead ends: 592 [2019-10-22 08:56:00,824 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 08:56:00,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-10-22 08:56:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-10-22 08:56:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-10-22 08:56:00,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 765 transitions. [2019-10-22 08:56:00,847 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 765 transitions. Word has length 96 [2019-10-22 08:56:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:00,848 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 765 transitions. [2019-10-22 08:56:00,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:00,848 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 765 transitions. [2019-10-22 08:56:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-22 08:56:00,851 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:00,852 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-22 08:56:00,852 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:00,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:00,852 INFO L82 PathProgramCache]: Analyzing trace with hash 308279990, now seen corresponding path program 1 times [2019-10-22 08:56:00,852 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:00,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413117960] [2019-10-22 08:56:00,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:00,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:00,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413117960] [2019-10-22 08:56:00,929 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:00,929 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:00,929 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257976044] [2019-10-22 08:56:00,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:00,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:00,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:00,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:00,930 INFO L87 Difference]: Start difference. First operand 592 states and 765 transitions. Second operand 4 states. [2019-10-22 08:56:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:01,793 INFO L93 Difference]: Finished difference Result 2169 states and 2837 transitions. [2019-10-22 08:56:01,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:01,793 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 101 [2019-10-22 08:56:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:01,801 INFO L225 Difference]: With dead ends: 2169 [2019-10-22 08:56:01,801 INFO L226 Difference]: Without dead ends: 1437 [2019-10-22 08:56:01,803 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:01,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2019-10-22 08:56:01,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1150. [2019-10-22 08:56:01,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1150 states. [2019-10-22 08:56:01,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1467 transitions. [2019-10-22 08:56:01,850 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1467 transitions. Word has length 101 [2019-10-22 08:56:01,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:01,851 INFO L462 AbstractCegarLoop]: Abstraction has 1150 states and 1467 transitions. [2019-10-22 08:56:01,851 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:01,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1467 transitions. [2019-10-22 08:56:01,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-10-22 08:56:01,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:01,863 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:01,863 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:01,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:01,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1263008387, now seen corresponding path program 1 times [2019-10-22 08:56:01,864 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:01,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836192073] [2019-10-22 08:56:01,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:01,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:01,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:01,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:01,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836192073] [2019-10-22 08:56:01,914 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:01,914 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:56:01,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568645717] [2019-10-22 08:56:01,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:01,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:01,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:01,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:01,917 INFO L87 Difference]: Start difference. First operand 1150 states and 1467 transitions. Second operand 3 states. [2019-10-22 08:56:02,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:02,329 INFO L93 Difference]: Finished difference Result 3278 states and 4207 transitions. [2019-10-22 08:56:02,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:02,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-10-22 08:56:02,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:02,336 INFO L225 Difference]: With dead ends: 3278 [2019-10-22 08:56:02,336 INFO L226 Difference]: Without dead ends: 2130 [2019-10-22 08:56:02,338 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 08:56:02,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2019-10-22 08:56:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1850. [2019-10-22 08:56:02,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1850 states. [2019-10-22 08:56:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2333 transitions. [2019-10-22 08:56:02,384 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2333 transitions. Word has length 109 [2019-10-22 08:56:02,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:02,384 INFO L462 AbstractCegarLoop]: Abstraction has 1850 states and 2333 transitions. [2019-10-22 08:56:02,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2333 transitions. [2019-10-22 08:56:02,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-22 08:56:02,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:02,388 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-22 08:56:02,388 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:02,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1854205693, now seen corresponding path program 1 times [2019-10-22 08:56:02,389 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:02,389 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401146213] [2019-10-22 08:56:02,389 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:02,389 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:02,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:02,516 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:02,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401146213] [2019-10-22 08:56:02,518 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:02,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:02,518 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807516049] [2019-10-22 08:56:02,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:02,519 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:02,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:02,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:02,520 INFO L87 Difference]: Start difference. First operand 1850 states and 2333 transitions. Second operand 4 states. [2019-10-22 08:56:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:03,117 INFO L93 Difference]: Finished difference Result 3984 states and 4981 transitions. [2019-10-22 08:56:03,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:03,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2019-10-22 08:56:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:03,124 INFO L225 Difference]: With dead ends: 3984 [2019-10-22 08:56:03,124 INFO L226 Difference]: Without dead ends: 2136 [2019-10-22 08:56:03,126 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 08:56:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2019-10-22 08:56:03,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2131. [2019-10-22 08:56:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2131 states. [2019-10-22 08:56:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2423 transitions. [2019-10-22 08:56:03,168 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2423 transitions. Word has length 150 [2019-10-22 08:56:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:03,168 INFO L462 AbstractCegarLoop]: Abstraction has 2131 states and 2423 transitions. [2019-10-22 08:56:03,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:03,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2423 transitions. [2019-10-22 08:56:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-22 08:56:03,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:03,174 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:03,174 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:03,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2077294402, now seen corresponding path program 1 times [2019-10-22 08:56:03,175 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:03,175 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007865358] [2019-10-22 08:56:03,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:03,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007865358] [2019-10-22 08:56:03,248 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:03,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:03,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872305712] [2019-10-22 08:56:03,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:03,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:03,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:03,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:03,249 INFO L87 Difference]: Start difference. First operand 2131 states and 2423 transitions. Second operand 3 states. [2019-10-22 08:56:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:03,651 INFO L93 Difference]: Finished difference Result 4266 states and 4853 transitions. [2019-10-22 08:56:03,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:03,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-22 08:56:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:03,659 INFO L225 Difference]: With dead ends: 4266 [2019-10-22 08:56:03,659 INFO L226 Difference]: Without dead ends: 2137 [2019-10-22 08:56:03,661 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 08:56:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2019-10-22 08:56:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2131. [2019-10-22 08:56:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2131 states. [2019-10-22 08:56:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2379 transitions. [2019-10-22 08:56:03,699 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2379 transitions. Word has length 159 [2019-10-22 08:56:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:03,700 INFO L462 AbstractCegarLoop]: Abstraction has 2131 states and 2379 transitions. [2019-10-22 08:56:03,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2379 transitions. [2019-10-22 08:56:03,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-22 08:56:03,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:03,706 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:03,706 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:03,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:03,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1420578269, now seen corresponding path program 1 times [2019-10-22 08:56:03,707 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:03,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418853221] [2019-10-22 08:56:03,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:03,816 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-22 08:56:03,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418853221] [2019-10-22 08:56:03,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:03,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:03,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196991668] [2019-10-22 08:56:03,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:03,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:03,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:03,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:03,819 INFO L87 Difference]: Start difference. First operand 2131 states and 2379 transitions. Second operand 4 states. [2019-10-22 08:56:04,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:04,249 INFO L93 Difference]: Finished difference Result 4258 states and 4754 transitions. [2019-10-22 08:56:04,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:04,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2019-10-22 08:56:04,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:04,255 INFO L225 Difference]: With dead ends: 4258 [2019-10-22 08:56:04,255 INFO L226 Difference]: Without dead ends: 2129 [2019-10-22 08:56:04,257 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 08:56:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2129 states. [2019-10-22 08:56:04,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2129 to 2129. [2019-10-22 08:56:04,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2129 states. [2019-10-22 08:56:04,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2129 states to 2129 states and 2307 transitions. [2019-10-22 08:56:04,290 INFO L78 Accepts]: Start accepts. Automaton has 2129 states and 2307 transitions. Word has length 161 [2019-10-22 08:56:04,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:04,291 INFO L462 AbstractCegarLoop]: Abstraction has 2129 states and 2307 transitions. [2019-10-22 08:56:04,291 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:04,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2129 states and 2307 transitions. [2019-10-22 08:56:04,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-22 08:56:04,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:04,295 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:04,295 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:04,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:04,296 INFO L82 PathProgramCache]: Analyzing trace with hash 72359917, now seen corresponding path program 1 times [2019-10-22 08:56:04,296 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:04,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905449228] [2019-10-22 08:56:04,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2019-10-22 08:56:04,348 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905449228] [2019-10-22 08:56:04,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:04,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:04,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625682365] [2019-10-22 08:56:04,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:04,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:04,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:04,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:04,349 INFO L87 Difference]: Start difference. First operand 2129 states and 2307 transitions. Second operand 3 states. [2019-10-22 08:56:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:04,667 INFO L93 Difference]: Finished difference Result 4538 states and 4924 transitions. [2019-10-22 08:56:04,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:04,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-22 08:56:04,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:04,673 INFO L225 Difference]: With dead ends: 4538 [2019-10-22 08:56:04,673 INFO L226 Difference]: Without dead ends: 2270 [2019-10-22 08:56:04,675 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 08:56:04,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2270 states. [2019-10-22 08:56:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2270 to 2268. [2019-10-22 08:56:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2268 states. [2019-10-22 08:56:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2268 states to 2268 states and 2449 transitions. [2019-10-22 08:56:04,708 INFO L78 Accepts]: Start accepts. Automaton has 2268 states and 2449 transitions. Word has length 170 [2019-10-22 08:56:04,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:04,708 INFO L462 AbstractCegarLoop]: Abstraction has 2268 states and 2449 transitions. [2019-10-22 08:56:04,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2268 states and 2449 transitions. [2019-10-22 08:56:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-22 08:56:04,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:04,712 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-22 08:56:04,712 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:04,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:04,712 INFO L82 PathProgramCache]: Analyzing trace with hash -648360830, now seen corresponding path program 1 times [2019-10-22 08:56:04,712 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:04,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398188393] [2019-10-22 08:56:04,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,713 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:04,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-22 08:56:04,798 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398188393] [2019-10-22 08:56:04,799 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:04,799 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:04,799 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341644864] [2019-10-22 08:56:04,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:04,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:04,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:04,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:04,800 INFO L87 Difference]: Start difference. First operand 2268 states and 2449 transitions. Second operand 4 states. [2019-10-22 08:56:05,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:05,456 INFO L93 Difference]: Finished difference Result 5239 states and 5687 transitions. [2019-10-22 08:56:05,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:05,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2019-10-22 08:56:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:05,464 INFO L225 Difference]: With dead ends: 5239 [2019-10-22 08:56:05,464 INFO L226 Difference]: Without dead ends: 2973 [2019-10-22 08:56:05,467 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 08:56:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2019-10-22 08:56:05,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2689. [2019-10-22 08:56:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2689 states. [2019-10-22 08:56:05,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2689 states to 2689 states and 2886 transitions. [2019-10-22 08:56:05,506 INFO L78 Accepts]: Start accepts. Automaton has 2689 states and 2886 transitions. Word has length 171 [2019-10-22 08:56:05,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:05,506 INFO L462 AbstractCegarLoop]: Abstraction has 2689 states and 2886 transitions. [2019-10-22 08:56:05,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:05,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2689 states and 2886 transitions. [2019-10-22 08:56:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-22 08:56:05,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:05,511 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:05,511 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1613967385, now seen corresponding path program 1 times [2019-10-22 08:56:05,511 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,511 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457600038] [2019-10-22 08:56:05,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,512 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:05,600 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457600038] [2019-10-22 08:56:05,600 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:05,600 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:56:05,600 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435192070] [2019-10-22 08:56:05,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:05,601 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:05,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:05,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:05,602 INFO L87 Difference]: Start difference. First operand 2689 states and 2886 transitions. Second operand 4 states. [2019-10-22 08:56:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:06,175 INFO L93 Difference]: Finished difference Result 5658 states and 6067 transitions. [2019-10-22 08:56:06,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:56:06,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 194 [2019-10-22 08:56:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:06,182 INFO L225 Difference]: With dead ends: 5658 [2019-10-22 08:56:06,182 INFO L226 Difference]: Without dead ends: 2550 [2019-10-22 08:56:06,184 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 08:56:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2019-10-22 08:56:06,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2406. [2019-10-22 08:56:06,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2406 states. [2019-10-22 08:56:06,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 2525 transitions. [2019-10-22 08:56:06,218 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 2525 transitions. Word has length 194 [2019-10-22 08:56:06,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:06,218 INFO L462 AbstractCegarLoop]: Abstraction has 2406 states and 2525 transitions. [2019-10-22 08:56:06,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:06,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 2525 transitions. [2019-10-22 08:56:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-22 08:56:06,222 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:06,222 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:56:06,223 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:06,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1509674929, now seen corresponding path program 1 times [2019-10-22 08:56:06,223 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303544043] [2019-10-22 08:56:06,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,223 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-10-22 08:56:06,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303544043] [2019-10-22 08:56:06,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486266939] [2019-10-22 08:56:06,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/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 08:56:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:56:06,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-10-22 08:56:06,529 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-22 08:56:06,529 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2019-10-22 08:56:06,530 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70044747] [2019-10-22 08:56:06,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:56:06,530 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:06,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:06,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:56:06,530 INFO L87 Difference]: Start difference. First operand 2406 states and 2525 transitions. Second operand 3 states. [2019-10-22 08:56:06,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:06,725 INFO L93 Difference]: Finished difference Result 4380 states and 4595 transitions. [2019-10-22 08:56:06,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:06,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-22 08:56:06,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:06,728 INFO L225 Difference]: With dead ends: 4380 [2019-10-22 08:56:06,728 INFO L226 Difference]: Without dead ends: 992 [2019-10-22 08:56:06,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 2 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 08:56:06,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-22 08:56:06,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 992. [2019-10-22 08:56:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2019-10-22 08:56:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1026 transitions. [2019-10-22 08:56:06,752 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1026 transitions. Word has length 201 [2019-10-22 08:56:06,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:06,752 INFO L462 AbstractCegarLoop]: Abstraction has 992 states and 1026 transitions. [2019-10-22 08:56:06,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:56:06,752 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1026 transitions. [2019-10-22 08:56:06,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-22 08:56:06,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:56:06,755 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:56:06,956 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:06,956 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:56:06,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,957 INFO L82 PathProgramCache]: Analyzing trace with hash 2063084960, now seen corresponding path program 1 times [2019-10-22 08:56:06,957 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133684121] [2019-10-22 08:56:06,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2019-10-22 08:56:07,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133684121] [2019-10-22 08:56:07,146 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:07,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:56:07,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395298961] [2019-10-22 08:56:07,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:56:07,146 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:07,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:56:07,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:56:07,147 INFO L87 Difference]: Start difference. First operand 992 states and 1026 transitions. Second operand 4 states. [2019-10-22 08:56:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:07,313 INFO L93 Difference]: Finished difference Result 1839 states and 1907 transitions. [2019-10-22 08:56:07,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:07,313 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 240 [2019-10-22 08:56:07,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:56:07,314 INFO L225 Difference]: With dead ends: 1839 [2019-10-22 08:56:07,314 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:56:07,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 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 08:56:07,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:56:07,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:56:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:56:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:56:07,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 240 [2019-10-22 08:56:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:56:07,317 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:56:07,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:56:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:56:07,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:56:07,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:56:07,622 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-10-22 08:56:07,849 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2019-10-22 08:56:07,851 INFO L443 ceAbstractionStarter]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,851 INFO L443 ceAbstractionStarter]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,851 INFO L443 ceAbstractionStarter]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L565(line 565) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L499(line 499) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L433(line 433) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L568(line 568) no Hoare annotation was computed. [2019-10-22 08:56:07,852 INFO L443 ceAbstractionStarter]: For program point L502(line 502) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 246) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-10-22 08:56:07,853 INFO L443 ceAbstractionStarter]: For program point L571(line 571) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L505(line 505) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,855 INFO L443 ceAbstractionStarter]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L574(line 574) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L508(line 508) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-10-22 08:56:07,856 INFO L443 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L511(line 511) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L381(lines 381 387) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L315(lines 315 326) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2019-10-22 08:56:07,857 INFO L443 ceAbstractionStarter]: For program point L580(line 580) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L514(line 514) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L583(line 583) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L517(line 517) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L451(line 451) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-10-22 08:56:07,858 INFO L443 ceAbstractionStarter]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L520(line 520) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L454(line 454) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,859 INFO L443 ceAbstractionStarter]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L589(line 589) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L523(line 523) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L457(line 457) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L592(line 592) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L526(line 526) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L460(line 460) no Hoare annotation was computed. [2019-10-22 08:56:07,860 INFO L443 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L262(lines 262 274) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,861 INFO L443 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L595(line 595) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L529(line 529) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L463(line 463) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L332(lines 332 335) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2019-10-22 08:56:07,865 INFO L443 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-10-22 08:56:07,866 INFO L439 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse2 (= ~a25~0 1))) (let ((.cse4 (= ~a11~0 1)) (.cse1 (= 10 ~a28~0)) (.cse5 (= ~a17~0 8)) (.cse6 (= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse7 (<= 10 ~a28~0)) (.cse8 (not .cse2)) (.cse9 (= ~a19~0 1)) (.cse0 (<= ~a11~0 0)) (.cse10 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1) (and .cse5 .cse0 .cse6) (and .cse7 .cse8 .cse4) (and (= ~a28~0 9) .cse4 .cse3) (and .cse6 .cse4 .cse3) (and .cse9 .cse0 .cse1) (and .cse5 .cse0 .cse8 .cse10) (and (not .cse6) .cse9 .cse0 .cse2 .cse3) (and .cse7 .cse8 .cse9 .cse0 .cse10)))) [2019-10-22 08:56:07,867 INFO L443 ceAbstractionStarter]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,867 INFO L443 ceAbstractionStarter]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,867 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-10-22 08:56:07,867 INFO L443 ceAbstractionStarter]: For program point L532(line 532) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L466(line 466) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 210) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L446 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L535(line 535) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L469(line 469) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L338(lines 338 347) no Hoare annotation was computed. [2019-10-22 08:56:07,868 INFO L443 ceAbstractionStarter]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L75(lines 75 80) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L538(line 538) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L472(line 472) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-10-22 08:56:07,869 INFO L439 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (= ~a25~0 1))) (let ((.cse4 (= ~a11~0 1)) (.cse1 (= 10 ~a28~0)) (.cse6 (= ~a28~0 7)) (.cse3 (<= ~a17~0 8)) (.cse5 (= ~a17~0 8)) (.cse7 (<= 10 ~a28~0)) (.cse8 (not .cse2)) (.cse9 (= ~a19~0 1)) (.cse0 (<= ~a11~0 0)) (.cse10 (not (= ~a28~0 11)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse1) (and .cse5 .cse0 .cse6) (and .cse7 .cse8 .cse4) (and (= ~a28~0 9) .cse4 .cse3) (and .cse6 .cse4 .cse3) (and .cse9 .cse0 .cse1) (and (not .cse6) .cse9 .cse0 .cse2 .cse3) (and .cse5 .cse0 .cse8 .cse10) (and .cse7 .cse8 .cse9 .cse0 .cse10)))) [2019-10-22 08:56:07,869 INFO L443 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 448) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L541(line 541) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L475(line 475) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L478(line 478) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-10-22 08:56:07,870 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L414(lines 414 416) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L415(line 415) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:56:07,871 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L550(line 550) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L418(line 418) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L487(line 487) no Hoare annotation was computed. [2019-10-22 08:56:07,872 INFO L443 ceAbstractionStarter]: For program point L421(line 421) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L556(line 556) no Hoare annotation was computed. [2019-10-22 08:56:07,873 INFO L443 ceAbstractionStarter]: For program point L490(line 490) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L424(line 424) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L559(line 559) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L493(line 493) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L427(line 427) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-10-22 08:56:07,875 INFO L443 ceAbstractionStarter]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L496(line 496) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L430(line 430) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L298(lines 298 307) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2019-10-22 08:56:07,876 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-10-22 08:56:07,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:56:07 BoogieIcfgContainer [2019-10-22 08:56:07,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:56:07,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:07,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:07,903 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:07,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:55:58" (3/4) ... [2019-10-22 08:56:07,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:56:07,924 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:56:07,929 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:56:08,057 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5e91d074-6af8-4a45-9d3e-1487e805421b/bin/uautomizer/witness.graphml [2019-10-22 08:56:08,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:08,061 INFO L168 Benchmark]: Toolchain (without parser) took 11525.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 387.4 MB). Free memory was 940.5 MB in the beginning and 960.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 367.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,061 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:08,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.21 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 08:56:08,062 INFO L168 Benchmark]: Boogie Preprocessor took 62.04 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 08:56:08,062 INFO L168 Benchmark]: RCFGBuilder took 1031.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,062 INFO L168 Benchmark]: TraceAbstraction took 9582.72 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 251.1 MB). Free memory was 986.5 MB in the beginning and 985.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 252.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,062 INFO L168 Benchmark]: Witness Printer took 157.34 ms. Allocated memory is still 1.4 GB. Free memory was 985.3 MB in the beginning and 960.4 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,064 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 589.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 98.21 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. * Boogie Preprocessor took 62.04 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 1031.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.5 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9582.72 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 251.1 MB). Free memory was 986.5 MB in the beginning and 985.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 252.4 MB. Max. memory is 11.5 GB. * Witness Printer took 157.34 ms. Allocated memory is still 1.4 GB. Free memory was 985.3 MB in the beginning and 960.4 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: 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: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((((((((a11 <= 0 && 10 == a28) && a25 == 1) && a17 <= 8) || (a11 == 1 && 10 == a28)) || ((a17 == 8 && a11 <= 0) && a28 == 7)) || ((10 <= a28 && !(a25 == 1)) && a11 == 1)) || ((a28 == 9 && a11 == 1) && a17 <= 8)) || ((a28 == 7 && a11 == 1) && a17 <= 8)) || ((a19 == 1 && a11 <= 0) && 10 == a28)) || ((((!(a28 == 7) && a19 == 1) && a11 <= 0) && a25 == 1) && a17 <= 8)) || (((a17 == 8 && a11 <= 0) && !(a25 == 1)) && !(a28 == 11))) || ((((10 <= a28 && !(a25 == 1)) && a19 == 1) && a11 <= 0) && !(a28 == 11)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((a11 <= 0 && 10 == a28) && a25 == 1) && a17 <= 8) || (a11 == 1 && 10 == a28)) || ((a17 == 8 && a11 <= 0) && a28 == 7)) || ((10 <= a28 && !(a25 == 1)) && a11 == 1)) || ((a28 == 9 && a11 == 1) && a17 <= 8)) || ((a28 == 7 && a11 == 1) && a17 <= 8)) || ((a19 == 1 && a11 <= 0) && 10 == a28)) || (((a17 == 8 && a11 <= 0) && !(a25 == 1)) && !(a28 == 11))) || ((((!(a28 == 7) && a19 == 1) && a11 <= 0) && a25 == 1) && a17 <= 8)) || ((((10 <= a28 && !(a25 == 1)) && a19 == 1) && a11 <= 0) && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Result: SAFE, OverallTime: 9.4s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 1537 SDtfs, 2378 SDslu, 267 SDs, 0 SdLazy, 5978 SolverSat, 948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 217 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2689occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1164 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 44 NumberOfFragments, 245 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1218 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 230 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2045 NumberOfCodeBlocks, 2045 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2032 ConstructedInterpolants, 0 QuantifiedInterpolants, 655619 SizeOfPredicates, 1 NumberOfNonLiveVariables, 390 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 1294/1302 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...