./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c -s /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 cc7fef7e01f0cbe23a4bfb5f51eb1c754f7b3b49 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:00:51,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:00:51,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:00:51,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:00:51,118 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:00:51,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:00:51,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:00:51,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:00:51,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:00:51,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:00:51,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:00:51,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:00:51,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:00:51,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:00:51,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:00:51,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:00:51,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:00:51,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:00:51,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:00:51,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:00:51,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:00:51,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:00:51,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:00:51,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:00:51,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:00:51,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:00:51,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:00:51,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:00:51,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:00:51,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:00:51,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:00:51,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:00:51,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:00:51,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:00:51,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:00:51,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:00:51,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:00:51,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:00:51,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:00:51,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:00:51,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:00:51,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:00:51,214 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:00:51,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:00:51,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:00:51,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:00:51,216 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:00:51,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:00:51,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:00:51,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:00:51,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:00:51,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:00:51,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:00:51,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:00:51,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:00:51,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:00:51,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:00:51,219 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:00:51,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:00:51,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:00:51,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:00:51,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:00:51,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:00:51,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:00:51,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:00:51,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:00:51,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:00:51,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:00:51,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:00:51,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:00:51,222 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_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 -> cc7fef7e01f0cbe23a4bfb5f51eb1c754f7b3b49 [2019-11-15 21:00:51,275 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:00:51,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:00:51,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:00:51,301 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:00:51,301 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:00:51,303 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem01_label06.c [2019-11-15 21:00:51,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/data/ea1c9eb82/b7c45b29f92c49d6a29b19515b9c732b/FLAG18a29be39 [2019-11-15 21:00:51,966 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:00:51,967 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/sv-benchmarks/c/eca-rers2012/Problem01_label06.c [2019-11-15 21:00:51,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/data/ea1c9eb82/b7c45b29f92c49d6a29b19515b9c732b/FLAG18a29be39 [2019-11-15 21:00:52,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/data/ea1c9eb82/b7c45b29f92c49d6a29b19515b9c732b [2019-11-15 21:00:52,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:00:52,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:00:52,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:00:52,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:00:52,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:00:52,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:00:52" (1/1) ... [2019-11-15 21:00:52,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2bc018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:52, skipping insertion in model container [2019-11-15 21:00:52,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:00:52" (1/1) ... [2019-11-15 21:00:52,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:00:52,306 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:00:52,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:00:52,913 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:00:53,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:00:53,061 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:00:53,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53 WrapperNode [2019-11-15 21:00:53,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:00:53,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:00:53,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:00:53,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:00:53,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:00:53,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:00:53,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:00:53,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:00:53,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... [2019-11-15 21:00:53,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:00:53,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:00:53,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:00:53,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:00:53,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 [2019-11-15 21:00:53,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:00:53,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:00:54,664 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:00:54,665 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 21:00:54,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:00:54 BoogieIcfgContainer [2019-11-15 21:00:54,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:00:54,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:00:54,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:00:54,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:00:54,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:00:52" (1/3) ... [2019-11-15 21:00:54,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1b1ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:00:54, skipping insertion in model container [2019-11-15 21:00:54,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:00:53" (2/3) ... [2019-11-15 21:00:54,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1b1ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:00:54, skipping insertion in model container [2019-11-15 21:00:54,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:00:54" (3/3) ... [2019-11-15 21:00:54,676 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label06.c [2019-11-15 21:00:54,686 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:00:54,693 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:00:54,704 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:00:54,740 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:00:54,741 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:00:54,741 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:00:54,741 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:00:54,741 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:00:54,741 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:00:54,742 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:00:54,742 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:00:54,771 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-11-15 21:00:54,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-11-15 21:00:54,786 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:00:54,787 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:00:54,789 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:00:54,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:00:54,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1065839007, now seen corresponding path program 1 times [2019-11-15 21:00:54,805 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:00:54,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295907488] [2019-11-15 21:00:54,805 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:54,806 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:54,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:00:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:00:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:00:55,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295907488] [2019-11-15 21:00:55,375 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:00:55,376 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:00:55,376 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12265791] [2019-11-15 21:00:55,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:00:55,382 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:00:55,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:00:55,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:55,400 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 4 states. [2019-11-15 21:00:57,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:00:57,093 INFO L93 Difference]: Finished difference Result 662 states and 1178 transitions. [2019-11-15 21:00:57,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:00:57,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2019-11-15 21:00:57,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:00:57,113 INFO L225 Difference]: With dead ends: 662 [2019-11-15 21:00:57,113 INFO L226 Difference]: Without dead ends: 397 [2019-11-15 21:00:57,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-11-15 21:00:57,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 266. [2019-11-15 21:00:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-15 21:00:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2019-11-15 21:00:57,211 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 124 [2019-11-15 21:00:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:00:57,213 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2019-11-15 21:00:57,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:00:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2019-11-15 21:00:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-11-15 21:00:57,224 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:00:57,224 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:00:57,225 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:00:57,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:00:57,225 INFO L82 PathProgramCache]: Analyzing trace with hash -547114830, now seen corresponding path program 1 times [2019-11-15 21:00:57,226 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:00:57,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042396428] [2019-11-15 21:00:57,227 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:57,227 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:57,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:00:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:00:57,358 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:00:57,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042396428] [2019-11-15 21:00:57,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:00:57,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:00:57,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452423832] [2019-11-15 21:00:57,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:00:57,361 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:00:57,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:00:57,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:57,362 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand 4 states. [2019-11-15 21:00:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:00:58,405 INFO L93 Difference]: Finished difference Result 1054 states and 1512 transitions. [2019-11-15 21:00:58,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:00:58,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2019-11-15 21:00:58,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:00:58,412 INFO L225 Difference]: With dead ends: 1054 [2019-11-15 21:00:58,412 INFO L226 Difference]: Without dead ends: 790 [2019-11-15 21:00:58,417 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-11-15 21:00:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 790. [2019-11-15 21:00:58,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-15 21:00:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1068 transitions. [2019-11-15 21:00:58,477 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1068 transitions. Word has length 130 [2019-11-15 21:00:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:00:58,480 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1068 transitions. [2019-11-15 21:00:58,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:00:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1068 transitions. [2019-11-15 21:00:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-15 21:00:58,484 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:00:58,484 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:00:58,484 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:00:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:00:58,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1847356338, now seen corresponding path program 1 times [2019-11-15 21:00:58,485 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:00:58,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415461651] [2019-11-15 21:00:58,486 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:58,487 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:58,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:00:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:00:58,831 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:00:58,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415461651] [2019-11-15 21:00:58,833 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:00:58,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 21:00:58,834 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284831952] [2019-11-15 21:00:58,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:00:58,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:00:58,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:00:58,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:58,841 INFO L87 Difference]: Start difference. First operand 790 states and 1068 transitions. Second operand 4 states. [2019-11-15 21:00:59,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:00:59,891 INFO L93 Difference]: Finished difference Result 2197 states and 3007 transitions. [2019-11-15 21:00:59,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 21:00:59,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2019-11-15 21:00:59,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:00:59,901 INFO L225 Difference]: With dead ends: 2197 [2019-11-15 21:00:59,901 INFO L226 Difference]: Without dead ends: 1314 [2019-11-15 21:00:59,904 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:00:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2019-11-15 21:00:59,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 921. [2019-11-15 21:00:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2019-11-15 21:00:59,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1116 transitions. [2019-11-15 21:00:59,947 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1116 transitions. Word has length 131 [2019-11-15 21:00:59,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:00:59,948 INFO L462 AbstractCegarLoop]: Abstraction has 921 states and 1116 transitions. [2019-11-15 21:00:59,948 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:00:59,948 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1116 transitions. [2019-11-15 21:00:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-15 21:00:59,951 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:00:59,952 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:00:59,952 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:00:59,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:00:59,953 INFO L82 PathProgramCache]: Analyzing trace with hash -667048959, now seen corresponding path program 1 times [2019-11-15 21:00:59,953 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:00:59,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275827926] [2019-11-15 21:00:59,953 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:59,953 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:00:59,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:00:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-11-15 21:01:00,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275827926] [2019-11-15 21:01:00,103 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:00,104 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:01:00,104 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668752903] [2019-11-15 21:01:00,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:01:00,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:00,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:01:00,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:01:00,107 INFO L87 Difference]: Start difference. First operand 921 states and 1116 transitions. Second operand 5 states. [2019-11-15 21:01:01,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:01,307 INFO L93 Difference]: Finished difference Result 2626 states and 3139 transitions. [2019-11-15 21:01:01,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:01:01,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2019-11-15 21:01:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:01,322 INFO L225 Difference]: With dead ends: 2626 [2019-11-15 21:01:01,323 INFO L226 Difference]: Without dead ends: 1707 [2019-11-15 21:01:01,325 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:01:01,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2019-11-15 21:01:01,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1445. [2019-11-15 21:01:01,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1445 states. [2019-11-15 21:01:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1693 transitions. [2019-11-15 21:01:01,372 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1693 transitions. Word has length 154 [2019-11-15 21:01:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:01,373 INFO L462 AbstractCegarLoop]: Abstraction has 1445 states and 1693 transitions. [2019-11-15 21:01:01,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:01:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1693 transitions. [2019-11-15 21:01:01,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-11-15 21:01:01,377 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:01,378 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:01:01,378 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:01,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:01,379 INFO L82 PathProgramCache]: Analyzing trace with hash -586263136, now seen corresponding path program 1 times [2019-11-15 21:01:01,379 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:01,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97642989] [2019-11-15 21:01:01,379 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:01,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:01,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:01,504 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-15 21:01:01,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97642989] [2019-11-15 21:01:01,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:01:01,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 21:01:01,506 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205022597] [2019-11-15 21:01:01,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:01:01,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:01,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:01:01,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:01:01,509 INFO L87 Difference]: Start difference. First operand 1445 states and 1693 transitions. Second operand 3 states. [2019-11-15 21:01:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:02,085 INFO L93 Difference]: Finished difference Result 3412 states and 4025 transitions. [2019-11-15 21:01:02,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:01:02,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 172 [2019-11-15 21:01:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:02,097 INFO L225 Difference]: With dead ends: 3412 [2019-11-15 21:01:02,097 INFO L226 Difference]: Without dead ends: 1969 [2019-11-15 21:01:02,099 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:01:02,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2019-11-15 21:01:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1707. [2019-11-15 21:01:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1707 states. [2019-11-15 21:01:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 1970 transitions. [2019-11-15 21:01:02,166 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 1970 transitions. Word has length 172 [2019-11-15 21:01:02,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:02,167 INFO L462 AbstractCegarLoop]: Abstraction has 1707 states and 1970 transitions. [2019-11-15 21:01:02,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:01:02,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 1970 transitions. [2019-11-15 21:01:02,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-15 21:01:02,172 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:02,173 INFO L380 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:01:02,173 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:02,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1424797588, now seen corresponding path program 1 times [2019-11-15 21:01:02,174 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:02,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098170247] [2019-11-15 21:01:02,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:02,175 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:02,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 97 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-15 21:01:02,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098170247] [2019-11-15 21:01:02,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140930086] [2019-11-15 21:01:02,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 [2019-11-15 21:01:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:02,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:01:02,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:01:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-15 21:01:02,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:01:02,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-15 21:01:02,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626976432] [2019-11-15 21:01:02,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:01:02,684 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:02,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:01:02,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:01:02,686 INFO L87 Difference]: Start difference. First operand 1707 states and 1970 transitions. Second operand 3 states. [2019-11-15 21:01:03,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:03,254 INFO L93 Difference]: Finished difference Result 3805 states and 4460 transitions. [2019-11-15 21:01:03,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:01:03,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-11-15 21:01:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:03,269 INFO L225 Difference]: With dead ends: 3805 [2019-11-15 21:01:03,270 INFO L226 Difference]: Without dead ends: 2100 [2019-11-15 21:01:03,275 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 201 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:01:03,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-11-15 21:01:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 1838. [2019-11-15 21:01:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1838 states. [2019-11-15 21:01:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2117 transitions. [2019-11-15 21:01:03,333 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2117 transitions. Word has length 201 [2019-11-15 21:01:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:03,334 INFO L462 AbstractCegarLoop]: Abstraction has 1838 states and 2117 transitions. [2019-11-15 21:01:03,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:01:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2117 transitions. [2019-11-15 21:01:03,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-11-15 21:01:03,343 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:03,344 INFO L380 BasicCegarLoop]: trace histogram [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, 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] [2019-11-15 21:01:03,558 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:01:03,558 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:03,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:03,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1045523871, now seen corresponding path program 1 times [2019-11-15 21:01:03,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:03,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899113190] [2019-11-15 21:01:03,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:03,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:03,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 98 proven. 4 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-11-15 21:01:03,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899113190] [2019-11-15 21:01:03,813 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669791377] [2019-11-15 21:01:03,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 [2019-11-15 21:01:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:03,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:01:03,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:01:04,111 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2019-11-15 21:01:04,111 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:01:04,112 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2019-11-15 21:01:04,112 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994714009] [2019-11-15 21:01:04,113 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:01:04,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:04,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:01:04,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:01:04,114 INFO L87 Difference]: Start difference. First operand 1838 states and 2117 transitions. Second operand 3 states. [2019-11-15 21:01:04,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:04,653 INFO L93 Difference]: Finished difference Result 4853 states and 5575 transitions. [2019-11-15 21:01:04,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:01:04,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2019-11-15 21:01:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:04,675 INFO L225 Difference]: With dead ends: 4853 [2019-11-15 21:01:04,676 INFO L226 Difference]: Without dead ends: 3017 [2019-11-15 21:01:04,679 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:01:04,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3017 states. [2019-11-15 21:01:04,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3017 to 2886. [2019-11-15 21:01:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2886 states. [2019-11-15 21:01:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2886 states to 2886 states and 3283 transitions. [2019-11-15 21:01:04,752 INFO L78 Accepts]: Start accepts. Automaton has 2886 states and 3283 transitions. Word has length 228 [2019-11-15 21:01:04,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:04,753 INFO L462 AbstractCegarLoop]: Abstraction has 2886 states and 3283 transitions. [2019-11-15 21:01:04,753 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:01:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2886 states and 3283 transitions. [2019-11-15 21:01:04,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2019-11-15 21:01:04,764 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:01:04,765 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 21:01:04,977 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:01:04,978 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:01:04,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:01:04,978 INFO L82 PathProgramCache]: Analyzing trace with hash 201884489, now seen corresponding path program 1 times [2019-11-15 21:01:04,978 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:01:04,980 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266901923] [2019-11-15 21:01:04,980 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:04,980 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:01:04,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:01:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:05,240 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 215 proven. 27 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-11-15 21:01:05,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266901923] [2019-11-15 21:01:05,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988273194] [2019-11-15 21:01:05,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/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 [2019-11-15 21:01:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:01:05,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 21:01:05,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:01:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-11-15 21:01:05,509 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-15 21:01:05,509 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2019-11-15 21:01:05,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706015695] [2019-11-15 21:01:05,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 21:01:05,510 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:01:05,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:01:05,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:01:05,511 INFO L87 Difference]: Start difference. First operand 2886 states and 3283 transitions. Second operand 3 states. [2019-11-15 21:01:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:01:05,932 INFO L93 Difference]: Finished difference Result 4720 states and 5318 transitions. [2019-11-15 21:01:05,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:01:05,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 271 [2019-11-15 21:01:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:01:05,937 INFO L225 Difference]: With dead ends: 4720 [2019-11-15 21:01:05,937 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:01:05,941 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:01:05,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:01:05,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:01:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:01:05,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:01:05,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2019-11-15 21:01:05,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:01:05,943 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:01:05,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 21:01:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:01:05,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:01:06,146 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 21:01:06,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 21:01:06,319 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-15 21:01:06,443 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,446 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-15 21:01:06,447 INFO L443 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2019-11-15 21:01:06,448 INFO L443 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-15 21:01:06,449 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2019-11-15 21:01:06,450 INFO L443 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-15 21:01:06,451 INFO L439 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (let ((.cse2 (= ~a12~0 8)) (.cse1 (= ~a17~0 1)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a7~0 0)) (.cse6 (not (= ~a8~0 13))) (.cse7 (not (= ~a16~0 6))) (.cse0 (= 1 ~a7~0))) (or (and .cse0 (= ~a16~0 4) .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse1 .cse3 .cse4 .cse5) (and .cse6 .cse5) (and .cse7 .cse5) (and .cse6 .cse0 .cse7) (and .cse0 (<= ~a21~0 0)))) [2019-11-15 21:01:06,451 INFO L443 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-11-15 21:01:06,452 INFO L443 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2019-11-15 21:01:06,454 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-15 21:01:06,454 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-15 21:01:06,455 INFO L446 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-15 21:01:06,456 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-11-15 21:01:06,457 INFO L443 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,458 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2019-11-15 21:01:06,459 INFO L443 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-15 21:01:06,460 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-15 21:01:06,461 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-15 21:01:06,461 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-15 21:01:06,461 INFO L443 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,461 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse2 (= ~a12~0 8)) (.cse1 (= ~a17~0 1)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a20~0 1)) (.cse5 (<= ~a7~0 0)) (.cse6 (not (= ~a8~0 13))) (.cse7 (not (= ~a16~0 6))) (.cse0 (= 1 ~a7~0))) (or (and .cse0 (= ~a16~0 4) .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse1 .cse3 .cse4 .cse5) (and .cse6 .cse5) (and .cse7 .cse5) (and .cse6 .cse0 .cse7) (and .cse0 (<= ~a21~0 0)))) [2019-11-15 21:01:06,461 INFO L443 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2019-11-15 21:01:06,462 INFO L443 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-15 21:01:06,463 INFO L443 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-15 21:01:06,464 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2019-11-15 21:01:06,465 INFO L443 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-15 21:01:06,466 INFO L443 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,467 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2019-11-15 21:01:06,468 INFO L443 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-15 21:01:06,469 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-15 21:01:06,470 INFO L443 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2019-11-15 21:01:06,471 INFO L443 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 21:01:06,472 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,473 INFO L443 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-15 21:01:06,474 INFO L443 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2019-11-15 21:01:06,475 INFO L443 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2019-11-15 21:01:06,475 INFO L443 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2019-11-15 21:01:06,475 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-15 21:01:06,475 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-15 21:01:06,475 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-15 21:01:06,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:01:06 BoogieIcfgContainer [2019-11-15 21:01:06,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:01:06,521 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:01:06,521 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:01:06,521 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:01:06,522 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:00:54" (3/4) ... [2019-11-15 21:01:06,526 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:01:06,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-15 21:01:06,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 21:01:06,762 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_24bafe8c-131d-4433-b6e6-b2b9a16d6425/bin/uautomizer/witness.graphml [2019-11-15 21:01:06,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:01:06,764 INFO L168 Benchmark]: Toolchain (without parser) took 14546.12 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 348.7 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 163.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,765 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:01:06,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,777 INFO L168 Benchmark]: Boogie Preprocessor took 83.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:01:06,777 INFO L168 Benchmark]: RCFGBuilder took 1417.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,778 INFO L168 Benchmark]: TraceAbstraction took 11852.15 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -128.5 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,778 INFO L168 Benchmark]: Witness Printer took 242.30 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:01:06,780 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 843.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 160.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -198.1 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1417.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11852.15 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 188.2 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -128.5 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * Witness Printer took 242.30 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((1 == a7 && a16 == 4) && a17 == 1) && a12 == 8) && a21 == 1) && a20 == 1) || ((((a12 == 8 && a17 == 1) && a21 == 1) && a20 == 1) && a7 <= 0)) || (!(a8 == 13) && a7 <= 0)) || (!(a16 == 6) && a7 <= 0)) || ((!(a8 == 13) && 1 == a7) && !(a16 == 6))) || (1 == a7 && a21 <= 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((1 == a7 && a16 == 4) && a17 == 1) && a12 == 8) && a21 == 1) && a20 == 1) || ((((a12 == 8 && a17 == 1) && a21 == 1) && a20 == 1) && a7 <= 0)) || (!(a8 == 13) && a7 <= 0)) || (!(a16 == 6) && a7 <= 0)) || ((!(a8 == 13) && 1 == a7) && !(a16 == 6))) || (1 == a7 && a21 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Result: SAFE, OverallTime: 11.7s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 605 SDtfs, 1489 SDslu, 78 SDs, 0 SdLazy, 3804 SolverSat, 706 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 731 GetRequests, 705 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2886occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 1441 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 143 HoareAnnotationTreeSize, 3 FomulaSimplifications, 948 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 2111 NumberOfCodeBlocks, 2111 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2100 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276962 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1191 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 1274/1332 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...