./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/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 82f1252cdfefb15e293400630c3df24cee2c679c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:11:00,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:11:00,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:11:00,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:11:00,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:11:00,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:11:00,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:11:00,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:11:00,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:11:00,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:11:00,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:11:00,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:11:00,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:11:00,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:11:00,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:11:00,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:11:00,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:11:00,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:11:00,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:11:00,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:11:00,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:11:00,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:11:00,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:11:00,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:11:00,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:11:00,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:11:00,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:11:00,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:11:00,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:11:00,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:11:00,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:11:00,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:11:00,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:11:00,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:11:00,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:11:00,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:11:00,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:11:00,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:11:00,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:11:00,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:11:00,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:11:00,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:11:00,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:11:00,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:11:00,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:11:00,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:11:00,969 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:11:00,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:11:00,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:11:00,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:11:00,971 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:11:00,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:11:00,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:11:00,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:11:00,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:11:00,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:11:00,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:11:00,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:11:00,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:11:00,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:11:00,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:11:00,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:11:00,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:11:00,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:11:00,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:11:00,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:11:00,974 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/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/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 -> 82f1252cdfefb15e293400630c3df24cee2c679c [2019-12-07 17:11:01,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:11:01,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:11:01,096 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:11:01,097 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:11:01,097 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:11:01,098 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2019-12-07 17:11:01,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/data/88894bc8c/e347082fa03d43c385fac7a04e96ee54/FLAG240dca1ee [2019-12-07 17:11:01,555 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:11:01,556 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/sv-benchmarks/c/eca-rers2012/Problem14_label51.c [2019-12-07 17:11:01,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/data/88894bc8c/e347082fa03d43c385fac7a04e96ee54/FLAG240dca1ee [2019-12-07 17:11:01,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/data/88894bc8c/e347082fa03d43c385fac7a04e96ee54 [2019-12-07 17:11:01,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:11:01,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:11:01,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:11:01,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:11:01,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:11:01,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:11:01" (1/1) ... [2019-12-07 17:11:01,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79351d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:01, skipping insertion in model container [2019-12-07 17:11:01,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:11:01" (1/1) ... [2019-12-07 17:11:01,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:11:01,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:11:02,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:11:02,263 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:11:02,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:11:02,339 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:11:02,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02 WrapperNode [2019-12-07 17:11:02,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:11:02,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:11:02,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:11:02,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:11:02,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:11:02,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:11:02,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:11:02,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:11:02,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... [2019-12-07 17:11:02,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:11:02,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:11:02,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:11:02,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:11:02,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/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 [2019-12-07 17:11:02,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:11:02,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:11:03,264 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:11:03,264 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 17:11:03,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:11:03 BoogieIcfgContainer [2019-12-07 17:11:03,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:11:03,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:11:03,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:11:03,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:11:03,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:11:01" (1/3) ... [2019-12-07 17:11:03,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389f724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:11:03, skipping insertion in model container [2019-12-07 17:11:03,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:11:02" (2/3) ... [2019-12-07 17:11:03,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3389f724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:11:03, skipping insertion in model container [2019-12-07 17:11:03,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:11:03" (3/3) ... [2019-12-07 17:11:03,270 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2019-12-07 17:11:03,277 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:11:03,283 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:11:03,291 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:11:03,311 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:11:03,311 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:11:03,311 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:11:03,311 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:11:03,311 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:11:03,311 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:11:03,312 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:11:03,312 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:11:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2019-12-07 17:11:03,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-07 17:11:03,333 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:03,333 INFO L410 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] [2019-12-07 17:11:03,334 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:03,338 INFO L82 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2019-12-07 17:11:03,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:03,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58864520] [2019-12-07 17:11:03,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:11:03,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58864520] [2019-12-07 17:11:03,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:03,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:11:03,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949878451] [2019-12-07 17:11:03,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:11:03,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:03,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:11:03,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:11:03,530 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2019-12-07 17:11:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:04,522 INFO L93 Difference]: Finished difference Result 866 states and 1574 transitions. [2019-12-07 17:11:04,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:11:04,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-07 17:11:04,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:04,539 INFO L225 Difference]: With dead ends: 866 [2019-12-07 17:11:04,539 INFO L226 Difference]: Without dead ends: 538 [2019-12-07 17:11:04,543 INFO L630 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 [2019-12-07 17:11:04,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-07 17:11:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-07 17:11:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-07 17:11:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 754 transitions. [2019-12-07 17:11:04,595 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 754 transitions. Word has length 35 [2019-12-07 17:11:04,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:04,595 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 754 transitions. [2019-12-07 17:11:04,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:11:04,596 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 754 transitions. [2019-12-07 17:11:04,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-12-07 17:11:04,600 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:04,600 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:04,600 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:04,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:04,601 INFO L82 PathProgramCache]: Analyzing trace with hash -545911462, now seen corresponding path program 1 times [2019-12-07 17:11:04,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:04,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290326036] [2019-12-07 17:11:04,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:11:04,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290326036] [2019-12-07 17:11:04,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:04,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:11:04,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249234776] [2019-12-07 17:11:04,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:11:04,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:04,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:11:04,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:04,869 INFO L87 Difference]: Start difference. First operand 538 states and 754 transitions. Second operand 6 states. [2019-12-07 17:11:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:05,959 INFO L93 Difference]: Finished difference Result 1964 states and 2764 transitions. [2019-12-07 17:11:05,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:11:05,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2019-12-07 17:11:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:05,966 INFO L225 Difference]: With dead ends: 1964 [2019-12-07 17:11:05,966 INFO L226 Difference]: Without dead ends: 1428 [2019-12-07 17:11:05,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:05,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-12-07 17:11:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2019-12-07 17:11:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2019-12-07 17:11:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1849 transitions. [2019-12-07 17:11:05,999 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1849 transitions. Word has length 143 [2019-12-07 17:11:06,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:06,000 INFO L462 AbstractCegarLoop]: Abstraction has 1428 states and 1849 transitions. [2019-12-07 17:11:06,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:11:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1849 transitions. [2019-12-07 17:11:06,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-12-07 17:11:06,006 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:06,006 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 17:11:06,006 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:06,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1795619338, now seen corresponding path program 1 times [2019-12-07 17:11:06,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:06,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148046363] [2019-12-07 17:11:06,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-12-07 17:11:06,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148046363] [2019-12-07 17:11:06,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:06,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:11:06,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866467242] [2019-12-07 17:11:06,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:11:06,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:06,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:11:06,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:11:06,112 INFO L87 Difference]: Start difference. First operand 1428 states and 1849 transitions. Second operand 4 states. [2019-12-07 17:11:06,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:06,895 INFO L93 Difference]: Finished difference Result 3922 states and 5314 transitions. [2019-12-07 17:11:06,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:11:06,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 209 [2019-12-07 17:11:06,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:06,908 INFO L225 Difference]: With dead ends: 3922 [2019-12-07 17:11:06,909 INFO L226 Difference]: Without dead ends: 2674 [2019-12-07 17:11:06,911 INFO L630 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 [2019-12-07 17:11:06,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2019-12-07 17:11:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2318. [2019-12-07 17:11:06,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-12-07 17:11:06,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2951 transitions. [2019-12-07 17:11:06,957 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2951 transitions. Word has length 209 [2019-12-07 17:11:06,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:06,958 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2951 transitions. [2019-12-07 17:11:06,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:11:06,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2951 transitions. [2019-12-07 17:11:06,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-12-07 17:11:06,960 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:06,961 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-12-07 17:11:06,961 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:06,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:06,961 INFO L82 PathProgramCache]: Analyzing trace with hash -853230355, now seen corresponding path program 1 times [2019-12-07 17:11:06,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:06,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569544138] [2019-12-07 17:11:06,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:06,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:07,154 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 136 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-12-07 17:11:07,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569544138] [2019-12-07 17:11:07,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728178691] [2019-12-07 17:11:07,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/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 [2019-12-07 17:11:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:07,210 INFO L264 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:11:07,217 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-12-07 17:11:07,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:07,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 17:11:07,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883247212] [2019-12-07 17:11:07,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:11:07,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:07,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:11:07,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:07,266 INFO L87 Difference]: Start difference. First operand 2318 states and 2951 transitions. Second operand 3 states. [2019-12-07 17:11:07,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:07,879 INFO L93 Difference]: Finished difference Result 4456 states and 5716 transitions. [2019-12-07 17:11:07,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:11:07,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2019-12-07 17:11:07,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:07,892 INFO L225 Difference]: With dead ends: 4456 [2019-12-07 17:11:07,892 INFO L226 Difference]: Without dead ends: 2318 [2019-12-07 17:11:07,895 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2019-12-07 17:11:07,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2318. [2019-12-07 17:11:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2318 states. [2019-12-07 17:11:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 2817 transitions. [2019-12-07 17:11:07,943 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 2817 transitions. Word has length 223 [2019-12-07 17:11:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:07,943 INFO L462 AbstractCegarLoop]: Abstraction has 2318 states and 2817 transitions. [2019-12-07 17:11:07,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:11:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 2817 transitions. [2019-12-07 17:11:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2019-12-07 17:11:07,946 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:07,947 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:08,147 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:08,147 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash -993849494, now seen corresponding path program 1 times [2019-12-07 17:11:08,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:08,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568069074] [2019-12-07 17:11:08,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:08,376 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 233 proven. 4 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-12-07 17:11:08,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568069074] [2019-12-07 17:11:08,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006899709] [2019-12-07 17:11:08,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:08,462 INFO L264 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:11:08,469 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2019-12-07 17:11:08,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:08,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 17:11:08,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112428261] [2019-12-07 17:11:08,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:11:08,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:08,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:11:08,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:08,521 INFO L87 Difference]: Start difference. First operand 2318 states and 2817 transitions. Second operand 3 states. [2019-12-07 17:11:09,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:09,005 INFO L93 Difference]: Finished difference Result 5880 states and 7234 transitions. [2019-12-07 17:11:09,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:11:09,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 292 [2019-12-07 17:11:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:09,018 INFO L225 Difference]: With dead ends: 5880 [2019-12-07 17:11:09,018 INFO L226 Difference]: Without dead ends: 3742 [2019-12-07 17:11:09,021 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2019-12-07 17:11:09,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3564. [2019-12-07 17:11:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2019-12-07 17:11:09,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 4207 transitions. [2019-12-07 17:11:09,069 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 4207 transitions. Word has length 292 [2019-12-07 17:11:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:09,070 INFO L462 AbstractCegarLoop]: Abstraction has 3564 states and 4207 transitions. [2019-12-07 17:11:09,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:11:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 4207 transitions. [2019-12-07 17:11:09,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2019-12-07 17:11:09,074 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:09,074 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:09,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:09,275 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:09,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:09,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1870613307, now seen corresponding path program 1 times [2019-12-07 17:11:09,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:09,275 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146451024] [2019-12-07 17:11:09,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-12-07 17:11:09,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146451024] [2019-12-07 17:11:09,472 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213374844] [2019-12-07 17:11:09,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:09,544 INFO L264 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:11:09,549 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2019-12-07 17:11:09,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:09,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 17:11:09,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994035391] [2019-12-07 17:11:09,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:11:09,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:09,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:11:09,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:09,607 INFO L87 Difference]: Start difference. First operand 3564 states and 4207 transitions. Second operand 3 states. [2019-12-07 17:11:10,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:10,165 INFO L93 Difference]: Finished difference Result 7838 states and 9371 transitions. [2019-12-07 17:11:10,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:11:10,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2019-12-07 17:11:10,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:10,180 INFO L225 Difference]: With dead ends: 7838 [2019-12-07 17:11:10,180 INFO L226 Difference]: Without dead ends: 4454 [2019-12-07 17:11:10,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2019-12-07 17:11:10,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4454. [2019-12-07 17:11:10,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4454 states. [2019-12-07 17:11:10,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 5193 transitions. [2019-12-07 17:11:10,235 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 5193 transitions. Word has length 305 [2019-12-07 17:11:10,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:10,235 INFO L462 AbstractCegarLoop]: Abstraction has 4454 states and 5193 transitions. [2019-12-07 17:11:10,236 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:11:10,236 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 5193 transitions. [2019-12-07 17:11:10,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-12-07 17:11:10,241 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:10,241 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:10,442 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:10,442 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:10,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash 438066137, now seen corresponding path program 1 times [2019-12-07 17:11:10,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:10,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056060609] [2019-12-07 17:11:10,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-12-07 17:11:10,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056060609] [2019-12-07 17:11:10,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137714685] [2019-12-07 17:11:10,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:10,733 INFO L264 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:11:10,735 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2019-12-07 17:11:10,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:10,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-12-07 17:11:10,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593232115] [2019-12-07 17:11:10,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:11:10,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:10,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:11:10,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:10,790 INFO L87 Difference]: Start difference. First operand 4454 states and 5193 transitions. Second operand 3 states. [2019-12-07 17:11:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:11,208 INFO L93 Difference]: Finished difference Result 9974 states and 11706 transitions. [2019-12-07 17:11:11,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:11:11,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-12-07 17:11:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:11,227 INFO L225 Difference]: With dead ends: 9974 [2019-12-07 17:11:11,228 INFO L226 Difference]: Without dead ends: 4988 [2019-12-07 17:11:11,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 312 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:11,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2019-12-07 17:11:11,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 3920. [2019-12-07 17:11:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-12-07 17:11:11,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4561 transitions. [2019-12-07 17:11:11,281 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4561 transitions. Word has length 313 [2019-12-07 17:11:11,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:11,282 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4561 transitions. [2019-12-07 17:11:11,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:11:11,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4561 transitions. [2019-12-07 17:11:11,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2019-12-07 17:11:11,285 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:11,285 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:11,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:11,487 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:11,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1982666170, now seen corresponding path program 1 times [2019-12-07 17:11:11,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:11,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746064924] [2019-12-07 17:11:11,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-12-07 17:11:11,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746064924] [2019-12-07 17:11:11,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643635352] [2019-12-07 17:11:11,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:11,773 INFO L264 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 17:11:11,776 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-12-07 17:11:11,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:11,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2019-12-07 17:11:11,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907096570] [2019-12-07 17:11:11,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:11:11,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:11,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:11:11,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:11,880 INFO L87 Difference]: Start difference. First operand 3920 states and 4561 transitions. Second operand 4 states. [2019-12-07 17:11:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:12,361 INFO L93 Difference]: Finished difference Result 7689 states and 8958 transitions. [2019-12-07 17:11:12,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:11:12,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 324 [2019-12-07 17:11:12,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:12,373 INFO L225 Difference]: With dead ends: 7689 [2019-12-07 17:11:12,373 INFO L226 Difference]: Without dead ends: 4098 [2019-12-07 17:11:12,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:11:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2019-12-07 17:11:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2019-12-07 17:11:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-12-07 17:11:12,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4186 transitions. [2019-12-07 17:11:12,410 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4186 transitions. Word has length 324 [2019-12-07 17:11:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:12,410 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4186 transitions. [2019-12-07 17:11:12,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:11:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4186 transitions. [2019-12-07 17:11:12,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2019-12-07 17:11:12,413 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:12,413 INFO L410 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:12,613 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:12,614 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:12,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:12,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1057538892, now seen corresponding path program 1 times [2019-12-07 17:11:12,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:12,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070909608] [2019-12-07 17:11:12,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 411 proven. 65 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2019-12-07 17:11:13,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070909608] [2019-12-07 17:11:13,058 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992381554] [2019-12-07 17:11:13,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:13,139 INFO L264 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:11:13,143 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 491 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-12-07 17:11:13,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:13,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2019-12-07 17:11:13,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990643224] [2019-12-07 17:11:13,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:13,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:13,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:13,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:11:13,395 INFO L87 Difference]: Start difference. First operand 3920 states and 4186 transitions. Second operand 7 states. [2019-12-07 17:11:13,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:13,902 INFO L93 Difference]: Finished difference Result 7710 states and 8241 transitions. [2019-12-07 17:11:13,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:11:13,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 419 [2019-12-07 17:11:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:13,916 INFO L225 Difference]: With dead ends: 7710 [2019-12-07 17:11:13,916 INFO L226 Difference]: Without dead ends: 4098 [2019-12-07 17:11:13,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 414 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:11:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2019-12-07 17:11:13,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2019-12-07 17:11:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2019-12-07 17:11:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4116 transitions. [2019-12-07 17:11:13,954 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4116 transitions. Word has length 419 [2019-12-07 17:11:13,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:13,955 INFO L462 AbstractCegarLoop]: Abstraction has 3920 states and 4116 transitions. [2019-12-07 17:11:13,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:13,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4116 transitions. [2019-12-07 17:11:13,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2019-12-07 17:11:13,959 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:13,960 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:14,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:14,160 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:14,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:14,161 INFO L82 PathProgramCache]: Analyzing trace with hash 798665016, now seen corresponding path program 1 times [2019-12-07 17:11:14,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:14,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874017154] [2019-12-07 17:11:14,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 1190 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2019-12-07 17:11:14,563 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874017154] [2019-12-07 17:11:14,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:14,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 17:11:14,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190023825] [2019-12-07 17:11:14,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:11:14,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:14,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:11:14,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:11:14,565 INFO L87 Difference]: Start difference. First operand 3920 states and 4116 transitions. Second operand 4 states. [2019-12-07 17:11:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:15,081 INFO L93 Difference]: Finished difference Result 8906 states and 9424 transitions. [2019-12-07 17:11:15,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:11:15,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 749 [2019-12-07 17:11:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:15,095 INFO L225 Difference]: With dead ends: 8906 [2019-12-07 17:11:15,095 INFO L226 Difference]: Without dead ends: 5166 [2019-12-07 17:11:15,098 INFO L630 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 [2019-12-07 17:11:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2019-12-07 17:11:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2019-12-07 17:11:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4988 states. [2019-12-07 17:11:15,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5242 transitions. [2019-12-07 17:11:15,148 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5242 transitions. Word has length 749 [2019-12-07 17:11:15,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:15,149 INFO L462 AbstractCegarLoop]: Abstraction has 4988 states and 5242 transitions. [2019-12-07 17:11:15,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:11:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5242 transitions. [2019-12-07 17:11:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2019-12-07 17:11:15,157 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:15,157 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:15,157 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:15,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:15,158 INFO L82 PathProgramCache]: Analyzing trace with hash 738870712, now seen corresponding path program 1 times [2019-12-07 17:11:15,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:15,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494784948] [2019-12-07 17:11:15,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 989 proven. 4 refuted. 0 times theorem prover too weak. 735 trivial. 0 not checked. [2019-12-07 17:11:16,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494784948] [2019-12-07 17:11:16,065 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390497375] [2019-12-07 17:11:16,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:16,185 INFO L264 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 17:11:16,191 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 1531 trivial. 0 not checked. [2019-12-07 17:11:16,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:11:16,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-12-07 17:11:16,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78839717] [2019-12-07 17:11:16,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 17:11:16,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:16,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 17:11:16,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:16,514 INFO L87 Difference]: Start difference. First operand 4988 states and 5242 transitions. Second operand 3 states. [2019-12-07 17:11:16,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:16,844 INFO L93 Difference]: Finished difference Result 9796 states and 10306 transitions. [2019-12-07 17:11:16,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:11:16,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 797 [2019-12-07 17:11:16,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:16,850 INFO L225 Difference]: With dead ends: 9796 [2019-12-07 17:11:16,850 INFO L226 Difference]: Without dead ends: 5166 [2019-12-07 17:11:16,853 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2019-12-07 17:11:16,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4810. [2019-12-07 17:11:16,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2019-12-07 17:11:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5033 transitions. [2019-12-07 17:11:16,894 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5033 transitions. Word has length 797 [2019-12-07 17:11:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:16,894 INFO L462 AbstractCegarLoop]: Abstraction has 4810 states and 5033 transitions. [2019-12-07 17:11:16,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 17:11:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5033 transitions. [2019-12-07 17:11:16,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2019-12-07 17:11:16,900 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:16,901 INFO L410 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:17,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:17,101 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:17,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:17,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1407042162, now seen corresponding path program 1 times [2019-12-07 17:11:17,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:17,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871142514] [2019-12-07 17:11:17,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 1011 proven. 4 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2019-12-07 17:11:17,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871142514] [2019-12-07 17:11:17,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373175069] [2019-12-07 17:11:17,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:18,107 INFO L264 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:11:18,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:18,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 992 proven. 23 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2019-12-07 17:11:18,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:11:18,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2019-12-07 17:11:18,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791952343] [2019-12-07 17:11:18,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 17:11:18,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:18,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 17:11:18,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:11:18,778 INFO L87 Difference]: Start difference. First operand 4810 states and 5033 transitions. Second operand 8 states. [2019-12-07 17:11:19,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:19,762 INFO L93 Difference]: Finished difference Result 9687 states and 10140 transitions. [2019-12-07 17:11:19,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:11:19,763 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 820 [2019-12-07 17:11:19,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:19,768 INFO L225 Difference]: With dead ends: 9687 [2019-12-07 17:11:19,768 INFO L226 Difference]: Without dead ends: 5235 [2019-12-07 17:11:19,772 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 818 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-12-07 17:11:19,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5235 states. [2019-12-07 17:11:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5235 to 4632. [2019-12-07 17:11:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-12-07 17:11:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4853 transitions. [2019-12-07 17:11:19,813 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4853 transitions. Word has length 820 [2019-12-07 17:11:19,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:19,813 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4853 transitions. [2019-12-07 17:11:19,813 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 17:11:19,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4853 transitions. [2019-12-07 17:11:19,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2019-12-07 17:11:19,820 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:19,820 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:20,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:20,021 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:20,022 INFO L82 PathProgramCache]: Analyzing trace with hash 980114751, now seen corresponding path program 1 times [2019-12-07 17:11:20,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:20,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589802167] [2019-12-07 17:11:20,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2377 backedges. 1690 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2019-12-07 17:11:21,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589802167] [2019-12-07 17:11:21,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:21,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:11:21,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497349473] [2019-12-07 17:11:21,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:21,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:21,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:21,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:21,408 INFO L87 Difference]: Start difference. First operand 4632 states and 4853 transitions. Second operand 7 states. [2019-12-07 17:11:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:22,054 INFO L93 Difference]: Finished difference Result 9621 states and 10071 transitions. [2019-12-07 17:11:22,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:11:22,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 909 [2019-12-07 17:11:22,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:22,060 INFO L225 Difference]: With dead ends: 9621 [2019-12-07 17:11:22,060 INFO L226 Difference]: Without dead ends: 4991 [2019-12-07 17:11:22,063 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:11:22,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4991 states. [2019-12-07 17:11:22,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4991 to 4632. [2019-12-07 17:11:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-12-07 17:11:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4850 transitions. [2019-12-07 17:11:22,098 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4850 transitions. Word has length 909 [2019-12-07 17:11:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:22,099 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4850 transitions. [2019-12-07 17:11:22,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4850 transitions. [2019-12-07 17:11:22,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 987 [2019-12-07 17:11:22,110 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:22,111 INFO L410 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:22,111 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:22,111 INFO L82 PathProgramCache]: Analyzing trace with hash 2037086168, now seen corresponding path program 1 times [2019-12-07 17:11:22,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:22,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979574776] [2019-12-07 17:11:22,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:23,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 738 proven. 257 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2019-12-07 17:11:23,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979574776] [2019-12-07 17:11:23,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042096561] [2019-12-07 17:11:23,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:23,572 INFO L264 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 17:11:23,579 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:23,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:23,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:24,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 985 proven. 10 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2019-12-07 17:11:24,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:11:24,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2019-12-07 17:11:24,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265766815] [2019-12-07 17:11:24,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 17:11:24,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:24,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 17:11:24,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2019-12-07 17:11:24,670 INFO L87 Difference]: Start difference. First operand 4632 states and 4850 transitions. Second operand 13 states. [2019-12-07 17:11:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:25,569 INFO L93 Difference]: Finished difference Result 9506 states and 9947 transitions. [2019-12-07 17:11:25,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 17:11:25,570 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 986 [2019-12-07 17:11:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:25,574 INFO L225 Difference]: With dead ends: 9506 [2019-12-07 17:11:25,574 INFO L226 Difference]: Without dead ends: 4876 [2019-12-07 17:11:25,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 996 GetRequests, 982 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2019-12-07 17:11:25,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2019-12-07 17:11:25,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 4632. [2019-12-07 17:11:25,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4632 states. [2019-12-07 17:11:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 4820 transitions. [2019-12-07 17:11:25,612 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 4820 transitions. Word has length 986 [2019-12-07 17:11:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:25,613 INFO L462 AbstractCegarLoop]: Abstraction has 4632 states and 4820 transitions. [2019-12-07 17:11:25,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 17:11:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 4820 transitions. [2019-12-07 17:11:25,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2019-12-07 17:11:25,620 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:25,620 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:25,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:25,821 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:25,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash 538441961, now seen corresponding path program 1 times [2019-12-07 17:11:25,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:25,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903114158] [2019-12-07 17:11:25,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:25,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2376 proven. 140 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2019-12-07 17:11:26,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903114158] [2019-12-07 17:11:26,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158337371] [2019-12-07 17:11:26,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:26,777 INFO L264 TraceCheckSpWp]: Trace formula consists of 1277 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:11:26,783 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:26,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:26,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:26,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:26,818 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 2453 proven. 616 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2019-12-07 17:11:27,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:11:27,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-12-07 17:11:27,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478789192] [2019-12-07 17:11:27,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:27,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:27,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:27,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:27,589 INFO L87 Difference]: Start difference. First operand 4632 states and 4820 transitions. Second operand 7 states. [2019-12-07 17:11:29,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:29,135 INFO L93 Difference]: Finished difference Result 11220 states and 11687 transitions. [2019-12-07 17:11:29,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 17:11:29,135 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1032 [2019-12-07 17:11:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:29,140 INFO L225 Difference]: With dead ends: 11220 [2019-12-07 17:11:29,140 INFO L226 Difference]: Without dead ends: 6412 [2019-12-07 17:11:29,143 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 1033 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-12-07 17:11:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2019-12-07 17:11:29,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 6056. [2019-12-07 17:11:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6056 states. [2019-12-07 17:11:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6262 transitions. [2019-12-07 17:11:29,188 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6262 transitions. Word has length 1032 [2019-12-07 17:11:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:29,188 INFO L462 AbstractCegarLoop]: Abstraction has 6056 states and 6262 transitions. [2019-12-07 17:11:29,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6262 transitions. [2019-12-07 17:11:29,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1601 [2019-12-07 17:11:29,202 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:29,203 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:29,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:29,404 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:29,405 INFO L82 PathProgramCache]: Analyzing trace with hash -160688465, now seen corresponding path program 1 times [2019-12-07 17:11:29,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:29,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894616945] [2019-12-07 17:11:29,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8277 backedges. 2606 proven. 0 refuted. 0 times theorem prover too weak. 5671 trivial. 0 not checked. [2019-12-07 17:11:31,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894616945] [2019-12-07 17:11:31,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:31,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:11:31,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30215698] [2019-12-07 17:11:31,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:31,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:31,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:31,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:31,778 INFO L87 Difference]: Start difference. First operand 6056 states and 6262 transitions. Second operand 7 states. [2019-12-07 17:11:32,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:32,277 INFO L93 Difference]: Finished difference Result 11696 states and 12089 transitions. [2019-12-07 17:11:32,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:11:32,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1600 [2019-12-07 17:11:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:32,282 INFO L225 Difference]: With dead ends: 11696 [2019-12-07 17:11:32,282 INFO L226 Difference]: Without dead ends: 5700 [2019-12-07 17:11:32,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:32,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2019-12-07 17:11:32,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5522. [2019-12-07 17:11:32,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5522 states. [2019-12-07 17:11:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5696 transitions. [2019-12-07 17:11:32,326 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5696 transitions. Word has length 1600 [2019-12-07 17:11:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:32,327 INFO L462 AbstractCegarLoop]: Abstraction has 5522 states and 5696 transitions. [2019-12-07 17:11:32,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:32,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5696 transitions. [2019-12-07 17:11:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1647 [2019-12-07 17:11:32,340 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:32,341 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:32,341 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:32,342 INFO L82 PathProgramCache]: Analyzing trace with hash -172671030, now seen corresponding path program 1 times [2019-12-07 17:11:32,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:32,342 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491519304] [2019-12-07 17:11:32,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 4898 proven. 29 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2019-12-07 17:11:34,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491519304] [2019-12-07 17:11:34,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174451318] [2019-12-07 17:11:34,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:34,554 INFO L264 TraceCheckSpWp]: Trace formula consists of 1982 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 17:11:34,567 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:11:34,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:34,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:11:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 8542 backedges. 5716 proven. 514 refuted. 0 times theorem prover too weak. 2312 trivial. 0 not checked. [2019-12-07 17:11:38,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:11:38,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2019-12-07 17:11:38,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766695797] [2019-12-07 17:11:38,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-12-07 17:11:38,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:38,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 17:11:38,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2019-12-07 17:11:38,422 INFO L87 Difference]: Start difference. First operand 5522 states and 5696 transitions. Second operand 14 states. [2019-12-07 17:11:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:43,063 INFO L93 Difference]: Finished difference Result 13890 states and 14375 transitions. [2019-12-07 17:11:43,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-12-07 17:11:43,063 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1646 [2019-12-07 17:11:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:43,070 INFO L225 Difference]: With dead ends: 13890 [2019-12-07 17:11:43,070 INFO L226 Difference]: Without dead ends: 7836 [2019-12-07 17:11:43,075 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 1649 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2019-12-07 17:11:43,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2019-12-07 17:11:43,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 4098. [2019-12-07 17:11:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2019-12-07 17:11:43,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4187 transitions. [2019-12-07 17:11:43,117 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4187 transitions. Word has length 1646 [2019-12-07 17:11:43,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:43,118 INFO L462 AbstractCegarLoop]: Abstraction has 4098 states and 4187 transitions. [2019-12-07 17:11:43,118 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-12-07 17:11:43,118 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4187 transitions. [2019-12-07 17:11:43,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1668 [2019-12-07 17:11:43,132 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:43,133 INFO L410 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:43,334 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:11:43,334 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:43,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash -191271911, now seen corresponding path program 1 times [2019-12-07 17:11:43,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:43,337 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065029055] [2019-12-07 17:11:43,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:45,960 INFO L134 CoverageAnalysis]: Checked inductivity of 8520 backedges. 2627 proven. 0 refuted. 0 times theorem prover too weak. 5893 trivial. 0 not checked. [2019-12-07 17:11:45,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065029055] [2019-12-07 17:11:45,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:45,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:11:45,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572158435] [2019-12-07 17:11:45,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:45,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:45,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:45,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:45,962 INFO L87 Difference]: Start difference. First operand 4098 states and 4187 transitions. Second operand 7 states. [2019-12-07 17:11:46,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:46,588 INFO L93 Difference]: Finished difference Result 8254 states and 8436 transitions. [2019-12-07 17:11:46,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:11:46,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1667 [2019-12-07 17:11:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:46,591 INFO L225 Difference]: With dead ends: 8254 [2019-12-07 17:11:46,591 INFO L226 Difference]: Without dead ends: 4276 [2019-12-07 17:11:46,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2019-12-07 17:11:46,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4098. [2019-12-07 17:11:46,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2019-12-07 17:11:46,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4186 transitions. [2019-12-07 17:11:46,619 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4186 transitions. Word has length 1667 [2019-12-07 17:11:46,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:46,620 INFO L462 AbstractCegarLoop]: Abstraction has 4098 states and 4186 transitions. [2019-12-07 17:11:46,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4186 transitions. [2019-12-07 17:11:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1814 [2019-12-07 17:11:46,636 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:46,636 INFO L410 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:11:46,636 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:46,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:46,637 INFO L82 PathProgramCache]: Analyzing trace with hash -354861792, now seen corresponding path program 1 times [2019-12-07 17:11:46,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:46,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153968447] [2019-12-07 17:11:46,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:48,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10875 backedges. 2724 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2019-12-07 17:11:48,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153968447] [2019-12-07 17:11:48,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:48,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:11:48,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212412696] [2019-12-07 17:11:48,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:11:48,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:48,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:11:48,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:11:48,475 INFO L87 Difference]: Start difference. First operand 4098 states and 4186 transitions. Second operand 5 states. [2019-12-07 17:11:49,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:49,174 INFO L93 Difference]: Finished difference Result 10508 states and 10764 transitions. [2019-12-07 17:11:49,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:11:49,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1813 [2019-12-07 17:11:49,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:49,178 INFO L225 Difference]: With dead ends: 10508 [2019-12-07 17:11:49,178 INFO L226 Difference]: Without dead ends: 6590 [2019-12-07 17:11:49,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:11:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2019-12-07 17:11:49,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 5344. [2019-12-07 17:11:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5344 states. [2019-12-07 17:11:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5485 transitions. [2019-12-07 17:11:49,218 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5485 transitions. Word has length 1813 [2019-12-07 17:11:49,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:49,219 INFO L462 AbstractCegarLoop]: Abstraction has 5344 states and 5485 transitions. [2019-12-07 17:11:49,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:11:49,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5485 transitions. [2019-12-07 17:11:49,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1949 [2019-12-07 17:11:49,237 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:49,238 INFO L410 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:11:49,238 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:49,238 INFO L82 PathProgramCache]: Analyzing trace with hash -962862479, now seen corresponding path program 1 times [2019-12-07 17:11:49,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:49,239 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122411510] [2019-12-07 17:11:49,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12570 backedges. 4213 proven. 0 refuted. 0 times theorem prover too weak. 8357 trivial. 0 not checked. [2019-12-07 17:11:52,589 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122411510] [2019-12-07 17:11:52,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:52,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:11:52,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744932607] [2019-12-07 17:11:52,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:52,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:52,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:52,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:52,591 INFO L87 Difference]: Start difference. First operand 5344 states and 5485 transitions. Second operand 7 states. [2019-12-07 17:11:53,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:53,060 INFO L93 Difference]: Finished difference Result 10122 states and 10373 transitions. [2019-12-07 17:11:53,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:11:53,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1948 [2019-12-07 17:11:53,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:53,063 INFO L225 Difference]: With dead ends: 10122 [2019-12-07 17:11:53,063 INFO L226 Difference]: Without dead ends: 4665 [2019-12-07 17:11:53,065 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:53,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4665 states. [2019-12-07 17:11:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4665 to 4487. [2019-12-07 17:11:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2019-12-07 17:11:53,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 4585 transitions. [2019-12-07 17:11:53,093 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 4585 transitions. Word has length 1948 [2019-12-07 17:11:53,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:53,094 INFO L462 AbstractCegarLoop]: Abstraction has 4487 states and 4585 transitions. [2019-12-07 17:11:53,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:53,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 4585 transitions. [2019-12-07 17:11:53,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1957 [2019-12-07 17:11:53,112 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:53,113 INFO L410 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:11:53,113 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:53,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:53,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1012455035, now seen corresponding path program 1 times [2019-12-07 17:11:53,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:53,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411770538] [2019-12-07 17:11:53,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:11:56,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12600 backedges. 4245 proven. 0 refuted. 0 times theorem prover too weak. 8355 trivial. 0 not checked. [2019-12-07 17:11:56,630 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411770538] [2019-12-07 17:11:56,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:11:56,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:11:56,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986368788] [2019-12-07 17:11:56,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:11:56,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:11:56,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:11:56,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:56,633 INFO L87 Difference]: Start difference. First operand 4487 states and 4585 transitions. Second operand 7 states. [2019-12-07 17:11:57,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:11:57,026 INFO L93 Difference]: Finished difference Result 9203 states and 9404 transitions. [2019-12-07 17:11:57,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:11:57,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1956 [2019-12-07 17:11:57,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:11:57,030 INFO L225 Difference]: With dead ends: 9203 [2019-12-07 17:11:57,030 INFO L226 Difference]: Without dead ends: 4665 [2019-12-07 17:11:57,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:11:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4665 states. [2019-12-07 17:11:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4665 to 4487. [2019-12-07 17:11:57,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2019-12-07 17:11:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 4580 transitions. [2019-12-07 17:11:57,061 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 4580 transitions. Word has length 1956 [2019-12-07 17:11:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:11:57,062 INFO L462 AbstractCegarLoop]: Abstraction has 4487 states and 4580 transitions. [2019-12-07 17:11:57,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:11:57,063 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 4580 transitions. [2019-12-07 17:11:57,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1984 [2019-12-07 17:11:57,081 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:11:57,082 INFO L410 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2019-12-07 17:11:57,082 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:11:57,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:11:57,082 INFO L82 PathProgramCache]: Analyzing trace with hash -375981036, now seen corresponding path program 1 times [2019-12-07 17:11:57,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:11:57,083 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154551972] [2019-12-07 17:11:57,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:11:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:00,631 INFO L134 CoverageAnalysis]: Checked inductivity of 12681 backedges. 4237 proven. 0 refuted. 0 times theorem prover too weak. 8444 trivial. 0 not checked. [2019-12-07 17:12:00,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154551972] [2019-12-07 17:12:00,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:12:00,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:12:00,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400948084] [2019-12-07 17:12:00,633 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:12:00,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:12:00,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:12:00,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:12:00,633 INFO L87 Difference]: Start difference. First operand 4487 states and 4580 transitions. Second operand 7 states. [2019-12-07 17:12:01,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:01,023 INFO L93 Difference]: Finished difference Result 9199 states and 9390 transitions. [2019-12-07 17:12:01,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:12:01,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1983 [2019-12-07 17:12:01,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:01,027 INFO L225 Difference]: With dead ends: 9199 [2019-12-07 17:12:01,027 INFO L226 Difference]: Without dead ends: 4665 [2019-12-07 17:12:01,029 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-12-07 17:12:01,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4665 states. [2019-12-07 17:12:01,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4665 to 4487. [2019-12-07 17:12:01,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2019-12-07 17:12:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 4575 transitions. [2019-12-07 17:12:01,060 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 4575 transitions. Word has length 1983 [2019-12-07 17:12:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:01,061 INFO L462 AbstractCegarLoop]: Abstraction has 4487 states and 4575 transitions. [2019-12-07 17:12:01,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:12:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 4575 transitions. [2019-12-07 17:12:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2015 [2019-12-07 17:12:01,081 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:01,081 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:12:01,082 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:01,082 INFO L82 PathProgramCache]: Analyzing trace with hash 891606446, now seen corresponding path program 1 times [2019-12-07 17:12:01,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:12:01,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462791720] [2019-12-07 17:12:01,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:12:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13756 backedges. 9202 proven. 695 refuted. 0 times theorem prover too weak. 3859 trivial. 0 not checked. [2019-12-07 17:12:06,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462791720] [2019-12-07 17:12:06,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899389532] [2019-12-07 17:12:06,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:12:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:06,818 INFO L264 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 17:12:06,829 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:12:06,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 17:12:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 13756 backedges. 9287 proven. 184 refuted. 0 times theorem prover too weak. 4285 trivial. 0 not checked. [2019-12-07 17:12:11,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 17:12:11,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2019-12-07 17:12:11,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094209438] [2019-12-07 17:12:11,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 17:12:11,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:12:11,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 17:12:11,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:12:11,334 INFO L87 Difference]: Start difference. First operand 4487 states and 4575 transitions. Second operand 9 states. [2019-12-07 17:12:12,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:12,495 INFO L93 Difference]: Finished difference Result 9403 states and 9585 transitions. [2019-12-07 17:12:12,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 17:12:12,495 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 2014 [2019-12-07 17:12:12,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:12,498 INFO L225 Difference]: With dead ends: 9403 [2019-12-07 17:12:12,498 INFO L226 Difference]: Without dead ends: 4918 [2019-12-07 17:12:12,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2025 GetRequests, 2012 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2019-12-07 17:12:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2019-12-07 17:12:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4487. [2019-12-07 17:12:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2019-12-07 17:12:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 4561 transitions. [2019-12-07 17:12:12,529 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 4561 transitions. Word has length 2014 [2019-12-07 17:12:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:12,530 INFO L462 AbstractCegarLoop]: Abstraction has 4487 states and 4561 transitions. [2019-12-07 17:12:12,530 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 17:12:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 4561 transitions. [2019-12-07 17:12:12,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2027 [2019-12-07 17:12:12,549 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:12,550 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-12-07 17:12:12,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:12:12,751 INFO L410 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:12,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:12,752 INFO L82 PathProgramCache]: Analyzing trace with hash -680935796, now seen corresponding path program 1 times [2019-12-07 17:12:12,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:12:12,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224094383] [2019-12-07 17:12:12,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:12:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:16,144 INFO L134 CoverageAnalysis]: Checked inductivity of 13914 backedges. 4419 proven. 0 refuted. 0 times theorem prover too weak. 9495 trivial. 0 not checked. [2019-12-07 17:12:16,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224094383] [2019-12-07 17:12:16,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:12:16,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 17:12:16,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629571956] [2019-12-07 17:12:16,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:12:16,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:12:16,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:12:16,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:12:16,146 INFO L87 Difference]: Start difference. First operand 4487 states and 4561 transitions. Second operand 4 states. [2019-12-07 17:12:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:16,496 INFO L93 Difference]: Finished difference Result 9162 states and 9315 transitions. [2019-12-07 17:12:16,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 17:12:16,496 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2026 [2019-12-07 17:12:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:16,499 INFO L225 Difference]: With dead ends: 9162 [2019-12-07 17:12:16,499 INFO L226 Difference]: Without dead ends: 4665 [2019-12-07 17:12:16,501 INFO L630 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 [2019-12-07 17:12:16,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4665 states. [2019-12-07 17:12:16,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4665 to 4487. [2019-12-07 17:12:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4487 states. [2019-12-07 17:12:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 4559 transitions. [2019-12-07 17:12:16,531 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 4559 transitions. Word has length 2026 [2019-12-07 17:12:16,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:16,532 INFO L462 AbstractCegarLoop]: Abstraction has 4487 states and 4559 transitions. [2019-12-07 17:12:16,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:12:16,532 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 4559 transitions. [2019-12-07 17:12:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2116 [2019-12-07 17:12:16,553 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:12:16,553 INFO L410 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:12:16,554 INFO L410 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:12:16,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:12:16,554 INFO L82 PathProgramCache]: Analyzing trace with hash 58677289, now seen corresponding path program 1 times [2019-12-07 17:12:16,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:12:16,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41726424] [2019-12-07 17:12:16,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:12:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:12:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 14461 backedges. 3142 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2019-12-07 17:12:19,021 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41726424] [2019-12-07 17:12:19,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:12:19,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 17:12:19,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067958475] [2019-12-07 17:12:19,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 17:12:19,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:12:19,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 17:12:19,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:12:19,023 INFO L87 Difference]: Start difference. First operand 4487 states and 4559 transitions. Second operand 5 states. [2019-12-07 17:12:19,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:12:19,463 INFO L93 Difference]: Finished difference Result 5021 states and 5097 transitions. [2019-12-07 17:12:19,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 17:12:19,463 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 2115 [2019-12-07 17:12:19,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:12:19,465 INFO L225 Difference]: With dead ends: 5021 [2019-12-07 17:12:19,465 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:12:19,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-07 17:12:19,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:12:19,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:12:19,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:12:19,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:12:19,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2115 [2019-12-07 17:12:19,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:12:19,467 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:12:19,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 17:12:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:12:19,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:12:19,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:12:19,896 WARN L192 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 368 [2019-12-07 17:12:20,298 WARN L192 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 368 [2019-12-07 17:12:22,469 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 346 DAG size of output: 127 [2019-12-07 17:12:27,281 WARN L192 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 346 DAG size of output: 127 [2019-12-07 17:12:27,290 INFO L246 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2019-12-07 17:12:27,290 INFO L246 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2019-12-07 17:12:27,290 INFO L246 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,291 INFO L246 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,291 INFO L246 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,291 INFO L246 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2019-12-07 17:12:27,291 INFO L246 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2019-12-07 17:12:27,291 INFO L246 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2019-12-07 17:12:27,292 INFO L246 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2019-12-07 17:12:27,293 INFO L246 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,294 INFO L246 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,295 INFO L246 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2019-12-07 17:12:27,295 INFO L246 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2019-12-07 17:12:27,295 INFO L246 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2019-12-07 17:12:27,296 INFO L246 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2019-12-07 17:12:27,296 INFO L246 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2019-12-07 17:12:27,296 INFO L246 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2019-12-07 17:12:27,297 INFO L246 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2019-12-07 17:12:27,297 INFO L246 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2019-12-07 17:12:27,297 INFO L246 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2019-12-07 17:12:27,297 INFO L246 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,298 INFO L246 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,298 INFO L246 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,298 INFO L246 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2019-12-07 17:12:27,299 INFO L246 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2019-12-07 17:12:27,299 INFO L246 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2019-12-07 17:12:27,299 INFO L246 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2019-12-07 17:12:27,299 INFO L246 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2019-12-07 17:12:27,300 INFO L246 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2019-12-07 17:12:27,300 INFO L246 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2019-12-07 17:12:27,300 INFO L246 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,301 INFO L246 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,301 INFO L246 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,301 INFO L246 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2019-12-07 17:12:27,301 INFO L246 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2019-12-07 17:12:27,302 INFO L246 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2019-12-07 17:12:27,302 INFO L246 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2019-12-07 17:12:27,302 INFO L246 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2019-12-07 17:12:27,303 INFO L246 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2019-12-07 17:12:27,303 INFO L246 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2019-12-07 17:12:27,303 INFO L246 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2019-12-07 17:12:27,303 INFO L246 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2019-12-07 17:12:27,304 INFO L246 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,304 INFO L246 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,304 INFO L246 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,305 INFO L246 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2019-12-07 17:12:27,305 INFO L246 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2019-12-07 17:12:27,305 INFO L246 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2019-12-07 17:12:27,305 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 17:12:27,306 INFO L246 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2019-12-07 17:12:27,306 INFO L246 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2019-12-07 17:12:27,306 INFO L246 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2019-12-07 17:12:27,306 INFO L246 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2019-12-07 17:12:27,307 INFO L246 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,307 INFO L246 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,307 INFO L246 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,308 INFO L246 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2019-12-07 17:12:27,308 INFO L246 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2019-12-07 17:12:27,308 INFO L246 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2019-12-07 17:12:27,308 INFO L246 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2019-12-07 17:12:27,309 INFO L246 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2019-12-07 17:12:27,309 INFO L246 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2019-12-07 17:12:27,309 INFO L246 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2019-12-07 17:12:27,309 INFO L246 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2019-12-07 17:12:27,310 INFO L246 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,310 INFO L246 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,310 INFO L246 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,311 INFO L246 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2019-12-07 17:12:27,311 INFO L246 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2019-12-07 17:12:27,311 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:12:27,311 INFO L246 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2019-12-07 17:12:27,312 INFO L246 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2019-12-07 17:12:27,313 INFO L246 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,314 INFO L246 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2019-12-07 17:12:27,315 INFO L246 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,316 INFO L246 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2019-12-07 17:12:27,317 INFO L246 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2019-12-07 17:12:27,318 INFO L246 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2019-12-07 17:12:27,319 INFO L246 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2019-12-07 17:12:27,320 INFO L246 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2019-12-07 17:12:27,321 INFO L246 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2019-12-07 17:12:27,321 INFO L246 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2019-12-07 17:12:27,321 INFO L246 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,321 INFO L246 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,321 INFO L242 CegarLoopResult]: At program point L871(lines 20 872) the Hoare annotation is: (let ((.cse19 (= ~a21~0 9))) (let ((.cse8 (not .cse19)) (.cse5 (<= 0 (+ ~a12~0 41))) (.cse7 (= ~a21~0 7)) (.cse12 (<= ~a12~0 599999)) (.cse9 (= ~a15~0 8)) (.cse16 (<= ~a21~0 6)) (.cse18 (<= ~a12~0 75)) (.cse15 (<= 20 ~a12~0)) (.cse3 (not (= 1 ULTIMATE.start_calculate_output_~input))) (.cse2 (= ~a15~0 9)) (.cse20 (= ~a15~0 6)) (.cse23 (= ~a21~0 6)) (.cse4 (<= ~a12~0 11)) (.cse22 (< 0 (+ ~a12~0 43))) (.cse24 (= ~a15~0 5)) (.cse14 (<= ~a12~0 80)) (.cse6 (<= ~a15~0 6)) (.cse1 (= ~a21~0 8)) (.cse21 (= ~a15~0 7)) (.cse25 (= ~a21~0 10)) (.cse10 (< 80 ~a12~0)) (.cse17 (<= (+ ~a12~0 42) 0)) (.cse13 (<= 10 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse11 (<= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7) (and .cse8 .cse9 .cse0 .cse10 (<= ~a12~0 73281)) (and .cse9 .cse0 .cse7 .cse4 .cse11) (and (or (and .cse7 .cse10) (and .cse3 .cse10)) .cse12 .cse0 .cse2) (and (or (and .cse9 .cse13 .cse4 .cse11) (and .cse14 .cse8 .cse15 .cse9)) .cse0) (and .cse0 .cse4 .cse11 .cse5 .cse16) (and (or (and .cse13 .cse0 .cse10 .cse11) .cse6 (and .cse10 .cse11 .cse16)) .cse12 .cse0) (and .cse9 .cse13 .cse0 .cse10) (and .cse17 .cse0 .cse7 .cse11) (and .cse18 .cse0 .cse1 .cse2 .cse3 (<= 19 ~a12~0)) (and .cse0 .cse19 .cse20) (and .cse0 .cse11 (<= (+ ~a12~0 49) 0) .cse16) (and .cse12 (or (and .cse10 .cse16) (and .cse13 .cse10)) .cse0 .cse2) (and .cse12 .cse0 .cse2 .cse10 .cse19) (and .cse9 .cse0 (<= 103531 ~a12~0) .cse16) (and (<= 9 ~a21~0) .cse18 .cse15 .cse0 .cse11) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a12~0 9352) 0)) (and .cse21 .cse0 .cse1 .cse10) (and .cse13 .cse0 .cse2 .cse4) (and .cse21 .cse0 .cse22 .cse19) (and .cse23 .cse0 .cse20) (and .cse23 .cse0 .cse24) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse0 .cse4 .cse11 .cse22 .cse19) (and .cse0 .cse25 .cse24) (and .cse14 .cse6) (and .cse21 .cse17 .cse0 .cse1) (and .cse21 .cse0 .cse25 .cse10) (and .cse17 .cse13 .cse0 .cse11)))) [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,322 INFO L246 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L249 CegarLoopResult]: At program point L874(lines 874 890) the Hoare annotation is: true [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2019-12-07 17:12:27,323 INFO L246 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,324 INFO L246 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L242 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse19 (= ~a21~0 9))) (let ((.cse8 (not .cse19)) (.cse5 (<= 0 (+ ~a12~0 41))) (.cse7 (= ~a21~0 7)) (.cse12 (<= ~a12~0 599999)) (.cse9 (= ~a15~0 8)) (.cse16 (<= ~a21~0 6)) (.cse18 (<= ~a12~0 75)) (.cse15 (<= 20 ~a12~0)) (.cse3 (not (= 1 ULTIMATE.start_calculate_output_~input))) (.cse2 (= ~a15~0 9)) (.cse20 (= ~a15~0 6)) (.cse23 (= ~a21~0 6)) (.cse4 (<= ~a12~0 11)) (.cse22 (< 0 (+ ~a12~0 43))) (.cse24 (= ~a15~0 5)) (.cse14 (<= ~a12~0 80)) (.cse6 (<= ~a15~0 6)) (.cse1 (= ~a21~0 8)) (.cse21 (= ~a15~0 7)) (.cse25 (= ~a21~0 10)) (.cse10 (< 80 ~a12~0)) (.cse17 (<= (+ ~a12~0 42) 0)) (.cse13 (<= 10 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse11 (<= ~a15~0 8))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse7) (and .cse8 .cse9 .cse0 .cse10 (<= ~a12~0 73281)) (and .cse9 .cse0 .cse7 .cse4 .cse11) (and (or (and .cse7 .cse10) (and .cse3 .cse10)) .cse12 .cse0 .cse2) (and (or (and .cse9 .cse13 .cse4 .cse11) (and .cse14 .cse8 .cse15 .cse9)) .cse0) (and .cse0 .cse4 .cse11 .cse5 .cse16) (and (or (and .cse13 .cse0 .cse10 .cse11) .cse6 (and .cse10 .cse11 .cse16)) .cse12 .cse0) (and .cse9 .cse13 .cse0 .cse10) (and .cse17 .cse0 .cse7 .cse11) (and .cse18 .cse0 .cse1 .cse2 .cse3 (<= 19 ~a12~0)) (and .cse0 .cse19 .cse20) (and .cse0 .cse11 (<= (+ ~a12~0 49) 0) .cse16) (and .cse12 (or (and .cse10 .cse16) (and .cse13 .cse10)) .cse0 .cse2) (and .cse12 .cse0 .cse2 .cse10 .cse19) (and .cse9 .cse0 (<= 103531 ~a12~0) .cse16) (and (<= 9 ~a21~0) .cse18 .cse15 .cse0 .cse11) (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a12~0 9352) 0)) (and .cse21 .cse0 .cse1 .cse10) (and .cse13 .cse0 .cse2 .cse4) (and .cse21 .cse0 .cse22 .cse19) (and .cse23 .cse0 .cse20) (and .cse23 .cse0 .cse24) (and (not (= 5 ULTIMATE.start_calculate_output_~input)) .cse0 .cse4 .cse11 .cse22 .cse19) (and .cse0 .cse25 .cse24) (and .cse14 .cse6) (and .cse21 .cse17 .cse0 .cse1) (and .cse21 .cse0 .cse25 .cse10) (and .cse17 .cse13 .cse0 .cse11)))) [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-12-07 17:12:27,325 INFO L246 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2019-12-07 17:12:27,326 INFO L246 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2019-12-07 17:12:27,327 INFO L246 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,328 INFO L246 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2019-12-07 17:12:27,329 INFO L246 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2019-12-07 17:12:27,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:12:27 BoogieIcfgContainer [2019-12-07 17:12:27,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:12:27,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:12:27,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:12:27,358 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:12:27,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:11:03" (3/4) ... [2019-12-07 17:12:27,360 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:12:27,378 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 17:12:27,379 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:12:27,460 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0ba80587-1698-4efe-b6b1-1dd533dca6e8/bin/uautomizer/witness.graphml [2019-12-07 17:12:27,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:12:27,461 INFO L168 Benchmark]: Toolchain (without parser) took 85529.18 ms. Allocated memory was 1.0 GB in the beginning and 3.3 GB in the end (delta: 2.3 GB). Free memory was 938.1 MB in the beginning and 2.9 GB in the end (delta: -2.0 GB). Peak memory consumption was 303.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,461 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:12:27,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 406.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -114.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,462 INFO L168 Benchmark]: Boogie Preprocessor took 52.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,462 INFO L168 Benchmark]: RCFGBuilder took 812.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.8 MB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,462 INFO L168 Benchmark]: TraceAbstraction took 84091.22 ms. Allocated memory was 1.1 GB in the beginning and 3.3 GB in the end (delta: 2.2 GB). Free memory was 906.8 MB in the beginning and 3.0 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,463 INFO L168 Benchmark]: Witness Printer took 102.85 ms. Allocated memory is still 3.3 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:12:27,464 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 406.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -114.8 MB). Peak memory consumption was 24.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 812.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.8 MB in the end (delta: 130.1 MB). Peak memory consumption was 130.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 84091.22 ms. Allocated memory was 1.1 GB in the beginning and 3.3 GB in the end (delta: 2.2 GB). Free memory was 906.8 MB in the beginning and 3.0 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 11.5 GB. * Witness Printer took 102.85 ms. Allocated memory is still 3.3 GB. Free memory was 3.0 GB in the beginning and 2.9 GB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a24 == 1 && a21 == 8) && a15 == 9) && !(1 == input)) && a12 <= 11) && 0 <= a12 + 41) || (a15 <= 6 && a21 == 7)) || ((((!(a21 == 9) && a15 == 8) && a24 == 1) && 80 < a12) && a12 <= 73281)) || ((((a15 == 8 && a24 == 1) && a21 == 7) && a12 <= 11) && a15 <= 8)) || (((((a21 == 7 && 80 < a12) || (!(1 == input) && 80 < a12)) && a12 <= 599999) && a24 == 1) && a15 == 9)) || (((((a15 == 8 && 10 <= a21) && a12 <= 11) && a15 <= 8) || (((a12 <= 80 && !(a21 == 9)) && 20 <= a12) && a15 == 8)) && a24 == 1)) || ((((a24 == 1 && a12 <= 11) && a15 <= 8) && 0 <= a12 + 41) && a21 <= 6)) || (((((((10 <= a21 && a24 == 1) && 80 < a12) && a15 <= 8) || a15 <= 6) || ((80 < a12 && a15 <= 8) && a21 <= 6)) && a12 <= 599999) && a24 == 1)) || (((a15 == 8 && 10 <= a21) && a24 == 1) && 80 < a12)) || (((a12 + 42 <= 0 && a24 == 1) && a21 == 7) && a15 <= 8)) || (((((a12 <= 75 && a24 == 1) && a21 == 8) && a15 == 9) && !(1 == input)) && 19 <= a12)) || ((a24 == 1 && a21 == 9) && a15 == 6)) || (((a24 == 1 && a15 <= 8) && a12 + 49 <= 0) && a21 <= 6)) || (((a12 <= 599999 && ((80 < a12 && a21 <= 6) || (10 <= a21 && 80 < a12))) && a24 == 1) && a15 == 9)) || ((((a12 <= 599999 && a24 == 1) && a15 == 9) && 80 < a12) && a21 == 9)) || (((a15 == 8 && a24 == 1) && 103531 <= a12) && a21 <= 6)) || ((((9 <= a21 && a12 <= 75) && 20 <= a12) && a24 == 1) && a15 <= 8)) || ((((a24 == 1 && a21 == 8) && a15 == 9) && !(1 == input)) && a12 + 9352 <= 0)) || (((a15 == 7 && a24 == 1) && a21 == 8) && 80 < a12)) || (((10 <= a21 && a24 == 1) && a15 == 9) && a12 <= 11)) || (((a15 == 7 && a24 == 1) && 0 < a12 + 43) && a21 == 9)) || ((a21 == 6 && a24 == 1) && a15 == 6)) || ((a21 == 6 && a24 == 1) && a15 == 5)) || (((((!(5 == input) && a24 == 1) && a12 <= 11) && a15 <= 8) && 0 < a12 + 43) && a21 == 9)) || ((a24 == 1 && a21 == 10) && a15 == 5)) || (a12 <= 80 && a15 <= 6)) || (((a15 == 7 && a12 + 42 <= 0) && a24 == 1) && a21 == 8)) || (((a15 == 7 && a24 == 1) && a21 == 10) && 80 < a12)) || (((a12 + 42 <= 0 && 10 <= a21) && a24 == 1) && a15 <= 8) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a24 == 1 && a21 == 8) && a15 == 9) && !(1 == input)) && a12 <= 11) && 0 <= a12 + 41) || (a15 <= 6 && a21 == 7)) || ((((!(a21 == 9) && a15 == 8) && a24 == 1) && 80 < a12) && a12 <= 73281)) || ((((a15 == 8 && a24 == 1) && a21 == 7) && a12 <= 11) && a15 <= 8)) || (((((a21 == 7 && 80 < a12) || (!(1 == input) && 80 < a12)) && a12 <= 599999) && a24 == 1) && a15 == 9)) || (((((a15 == 8 && 10 <= a21) && a12 <= 11) && a15 <= 8) || (((a12 <= 80 && !(a21 == 9)) && 20 <= a12) && a15 == 8)) && a24 == 1)) || ((((a24 == 1 && a12 <= 11) && a15 <= 8) && 0 <= a12 + 41) && a21 <= 6)) || (((((((10 <= a21 && a24 == 1) && 80 < a12) && a15 <= 8) || a15 <= 6) || ((80 < a12 && a15 <= 8) && a21 <= 6)) && a12 <= 599999) && a24 == 1)) || (((a15 == 8 && 10 <= a21) && a24 == 1) && 80 < a12)) || (((a12 + 42 <= 0 && a24 == 1) && a21 == 7) && a15 <= 8)) || (((((a12 <= 75 && a24 == 1) && a21 == 8) && a15 == 9) && !(1 == input)) && 19 <= a12)) || ((a24 == 1 && a21 == 9) && a15 == 6)) || (((a24 == 1 && a15 <= 8) && a12 + 49 <= 0) && a21 <= 6)) || (((a12 <= 599999 && ((80 < a12 && a21 <= 6) || (10 <= a21 && 80 < a12))) && a24 == 1) && a15 == 9)) || ((((a12 <= 599999 && a24 == 1) && a15 == 9) && 80 < a12) && a21 == 9)) || (((a15 == 8 && a24 == 1) && 103531 <= a12) && a21 <= 6)) || ((((9 <= a21 && a12 <= 75) && 20 <= a12) && a24 == 1) && a15 <= 8)) || ((((a24 == 1 && a21 == 8) && a15 == 9) && !(1 == input)) && a12 + 9352 <= 0)) || (((a15 == 7 && a24 == 1) && a21 == 8) && 80 < a12)) || (((10 <= a21 && a24 == 1) && a15 == 9) && a12 <= 11)) || (((a15 == 7 && a24 == 1) && 0 < a12 + 43) && a21 == 9)) || ((a21 == 6 && a24 == 1) && a15 == 6)) || ((a21 == 6 && a24 == 1) && a15 == 5)) || (((((!(5 == input) && a24 == 1) && a12 <= 11) && a15 <= 8) && 0 < a12 + 43) && a21 == 9)) || ((a24 == 1 && a21 == 10) && a15 == 5)) || (a12 <= 80 && a15 <= 6)) || (((a15 == 7 && a12 + 42 <= 0) && a24 == 1) && a21 == 8)) || (((a15 == 7 && a24 == 1) && a21 == 10) && 80 < a12)) || (((a12 + 42 <= 0 && 10 <= a21) && a24 == 1) && a15 <= 8) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Result: SAFE, OverallTime: 76.1s, OverallIterations: 25, TraceHistogramMax: 18, AutomataDifference: 20.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.8s, HoareTripleCheckerStatistics: 1845 SDtfs, 8438 SDslu, 428 SDs, 0 SdLazy, 29496 SolverSat, 2310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9337 GetRequests, 9172 SyntacticMatches, 15 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6056occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 25 MinimizatonAttempts, 10537 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 110 NumberOfFragments, 957 HoareAnnotationTreeSize, 3 FomulaSimplifications, 103095458 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7511652 FormulaSimplificationTreeSizeReductionInter, 6.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 35495 NumberOfCodeBlocks, 35495 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 35458 ConstructedInterpolants, 33 QuantifiedInterpolants, 168394607 SizeOfPredicates, 31 NumberOfNonLiveVariables, 11387 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 37 InterpolantComputations, 20 PerfectInterpolantSequences, 164314/166875 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...