./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 f756365182c9801d4a2ac186a40692687a86b469 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 f756365182c9801d4a2ac186a40692687a86b469 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:41:07,128 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:41:07,129 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:41:07,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:41:07,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:41:07,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:41:07,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:41:07,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:41:07,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:41:07,140 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:41:07,141 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:41:07,141 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:41:07,142 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:41:07,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:41:07,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:41:07,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:41:07,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:41:07,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:41:07,147 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:41:07,148 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:41:07,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:41:07,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:41:07,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:41:07,152 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:41:07,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:41:07,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:41:07,153 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:41:07,154 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:41:07,154 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:41:07,155 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:41:07,155 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:41:07,156 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:41:07,156 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:41:07,156 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:41:07,157 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:41:07,157 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:41:07,158 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:41:07,167 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:41:07,167 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:41:07,168 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:41:07,168 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:41:07,169 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:41:07,169 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:41:07,169 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:41:07,169 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:41:07,169 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:41:07,169 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:41:07,170 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:41:07,171 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:41:07,171 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:41:07,171 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:41:07,171 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:41:07,171 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:41:07,171 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:41:07,171 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:41:07,172 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 -> f756365182c9801d4a2ac186a40692687a86b469 [2018-11-28 12:41:07,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:41:07,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:41:07,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:41:07,206 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:41:07,206 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:41:07,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:07,245 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/93a36a66f/b5e2c16758ea4ea8b2835e8f1eb13284/FLAG6fdbf4bee [2018-11-28 12:41:07,602 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:41:07,602 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:07,608 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/93a36a66f/b5e2c16758ea4ea8b2835e8f1eb13284/FLAG6fdbf4bee [2018-11-28 12:41:08,007 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/93a36a66f/b5e2c16758ea4ea8b2835e8f1eb13284 [2018-11-28 12:41:08,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:41:08,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:41:08,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:41:08,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:41:08,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:41:08,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6084a266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08, skipping insertion in model container [2018-11-28 12:41:08,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:41:08,035 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:41:08,153 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:41:08,155 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:41:08,180 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:41:08,189 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:41:08,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08 WrapperNode [2018-11-28 12:41:08,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:41:08,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:41:08,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:41:08,190 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:41:08,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:41:08,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:41:08,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:41:08,242 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:41:08,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... [2018-11-28 12:41:08,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:41:08,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:41:08,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:41:08,271 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:41:08,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 [2018-11-28 12:41:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:41:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:41:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2018-11-28 12:41:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2018-11-28 12:41:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:41:08,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:41:08,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:41:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:41:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2018-11-28 12:41:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2018-11-28 12:41:08,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:41:08,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:41:08,598 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:41:08,598 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:41:08,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:08 BoogieIcfgContainer [2018-11-28 12:41:08,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:41:08,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:41:08,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:41:08,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:41:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:41:08" (1/3) ... [2018-11-28 12:41:08,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9126db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:41:08, skipping insertion in model container [2018-11-28 12:41:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:08" (2/3) ... [2018-11-28 12:41:08,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9126db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:41:08, skipping insertion in model container [2018-11-28 12:41:08,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:08" (3/3) ... [2018-11-28 12:41:08,604 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:08,612 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:41:08,618 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:41:08,628 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:41:08,649 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:41:08,650 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:41:08,650 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:41:08,650 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:41:08,650 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:41:08,650 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:41:08,650 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:41:08,650 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:41:08,650 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:41:08,662 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-28 12:41:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:41:08,666 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:08,666 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:08,668 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:08,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash -441638981, now seen corresponding path program 1 times [2018-11-28 12:41:08,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:08,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:08,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:08,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:08,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:08,890 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:08,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:08,892 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:08,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:08,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:41:09,109 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:09,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11] total 13 [2018-11-28 12:41:09,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:41:09,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:41:09,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:41:09,122 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 13 states. [2018-11-28 12:41:09,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:09,623 INFO L93 Difference]: Finished difference Result 220 states and 359 transitions. [2018-11-28 12:41:09,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-28 12:41:09,624 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 36 [2018-11-28 12:41:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:09,633 INFO L225 Difference]: With dead ends: 220 [2018-11-28 12:41:09,633 INFO L226 Difference]: Without dead ends: 141 [2018-11-28 12:41:09,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2018-11-28 12:41:09,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-28 12:41:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2018-11-28 12:41:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-11-28 12:41:09,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 170 transitions. [2018-11-28 12:41:09,681 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 170 transitions. Word has length 36 [2018-11-28 12:41:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:09,681 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 170 transitions. [2018-11-28 12:41:09,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:41:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 170 transitions. [2018-11-28 12:41:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 12:41:09,684 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:09,684 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:09,684 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:09,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:09,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1206867801, now seen corresponding path program 1 times [2018-11-28 12:41:09,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:09,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:09,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:09,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:09,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:09,815 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:09,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:09,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:41:09,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:09,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:09,818 INFO L87 Difference]: Start difference. First operand 118 states and 170 transitions. Second operand 8 states. [2018-11-28 12:41:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:09,911 INFO L93 Difference]: Finished difference Result 255 states and 375 transitions. [2018-11-28 12:41:09,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:41:09,912 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2018-11-28 12:41:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:09,914 INFO L225 Difference]: With dead ends: 255 [2018-11-28 12:41:09,914 INFO L226 Difference]: Without dead ends: 182 [2018-11-28 12:41:09,915 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:09,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-11-28 12:41:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2018-11-28 12:41:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-11-28 12:41:09,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 249 transitions. [2018-11-28 12:41:09,933 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 249 transitions. Word has length 40 [2018-11-28 12:41:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:09,934 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 249 transitions. [2018-11-28 12:41:09,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 249 transitions. [2018-11-28 12:41:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 12:41:09,936 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:09,936 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:09,936 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:09,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:09,936 INFO L82 PathProgramCache]: Analyzing trace with hash -985162678, now seen corresponding path program 1 times [2018-11-28 12:41:09,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:09,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:09,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:09,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:09,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 12:41:10,116 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:10,116 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:10,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:10,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-28 12:41:10,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:10,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 19 [2018-11-28 12:41:10,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-28 12:41:10,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-28 12:41:10,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:41:10,285 INFO L87 Difference]: Start difference. First operand 178 states and 249 transitions. Second operand 19 states. [2018-11-28 12:41:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:10,838 INFO L93 Difference]: Finished difference Result 344 states and 501 transitions. [2018-11-28 12:41:10,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-28 12:41:10,838 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 44 [2018-11-28 12:41:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:10,839 INFO L225 Difference]: With dead ends: 344 [2018-11-28 12:41:10,839 INFO L226 Difference]: Without dead ends: 271 [2018-11-28 12:41:10,840 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2018-11-28 12:41:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2018-11-28 12:41:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 236. [2018-11-28 12:41:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-11-28 12:41:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 330 transitions. [2018-11-28 12:41:10,854 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 330 transitions. Word has length 44 [2018-11-28 12:41:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:10,854 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 330 transitions. [2018-11-28 12:41:10,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-28 12:41:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 330 transitions. [2018-11-28 12:41:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 12:41:10,855 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:10,856 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:10,856 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:10,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:10,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1720292238, now seen corresponding path program 1 times [2018-11-28 12:41:10,856 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:10,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:10,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:10,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:10,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:10,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:10,959 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:10,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:10,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-28 12:41:11,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:11,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2018-11-28 12:41:11,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 12:41:11,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 12:41:11,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:41:11,093 INFO L87 Difference]: Start difference. First operand 236 states and 330 transitions. Second operand 17 states. [2018-11-28 12:41:11,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:11,521 INFO L93 Difference]: Finished difference Result 388 states and 561 transitions. [2018-11-28 12:41:11,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-28 12:41:11,521 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 44 [2018-11-28 12:41:11,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:11,523 INFO L225 Difference]: With dead ends: 388 [2018-11-28 12:41:11,523 INFO L226 Difference]: Without dead ends: 324 [2018-11-28 12:41:11,523 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2018-11-28 12:41:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2018-11-28 12:41:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 228. [2018-11-28 12:41:11,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-11-28 12:41:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 316 transitions. [2018-11-28 12:41:11,541 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 316 transitions. Word has length 44 [2018-11-28 12:41:11,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:11,542 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 316 transitions. [2018-11-28 12:41:11,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 12:41:11,542 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 316 transitions. [2018-11-28 12:41:11,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:11,544 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:11,544 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:11,545 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:11,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:11,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1063865541, now seen corresponding path program 1 times [2018-11-28 12:41:11,545 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:11,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:11,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:11,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:11,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-28 12:41:11,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:11,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 12:41:11,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:41:11,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:41:11,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:41:11,738 INFO L87 Difference]: Start difference. First operand 228 states and 316 transitions. Second operand 14 states. [2018-11-28 12:41:12,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:12,002 INFO L93 Difference]: Finished difference Result 399 states and 578 transitions. [2018-11-28 12:41:12,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:41:12,002 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2018-11-28 12:41:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:12,003 INFO L225 Difference]: With dead ends: 399 [2018-11-28 12:41:12,004 INFO L226 Difference]: Without dead ends: 333 [2018-11-28 12:41:12,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2018-11-28 12:41:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-11-28 12:41:12,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 316. [2018-11-28 12:41:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-11-28 12:41:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 443 transitions. [2018-11-28 12:41:12,021 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 443 transitions. Word has length 48 [2018-11-28 12:41:12,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:12,021 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 443 transitions. [2018-11-28 12:41:12,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:41:12,021 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 443 transitions. [2018-11-28 12:41:12,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:12,023 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:12,023 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:12,023 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:12,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:12,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1641589375, now seen corresponding path program 1 times [2018-11-28 12:41:12,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:12,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:12,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:12,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:12,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:12,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:12,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:12,106 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:12,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:12,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:12,166 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:12,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 12:41:12,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:12,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:12,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:12,167 INFO L87 Difference]: Start difference. First operand 316 states and 443 transitions. Second operand 8 states. [2018-11-28 12:41:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:12,272 INFO L93 Difference]: Finished difference Result 388 states and 545 transitions. [2018-11-28 12:41:12,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:41:12,272 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-11-28 12:41:12,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:12,274 INFO L225 Difference]: With dead ends: 388 [2018-11-28 12:41:12,274 INFO L226 Difference]: Without dead ends: 349 [2018-11-28 12:41:12,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-11-28 12:41:12,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 335. [2018-11-28 12:41:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2018-11-28 12:41:12,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 466 transitions. [2018-11-28 12:41:12,291 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 466 transitions. Word has length 48 [2018-11-28 12:41:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:12,291 INFO L480 AbstractCegarLoop]: Abstraction has 335 states and 466 transitions. [2018-11-28 12:41:12,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:12,291 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 466 transitions. [2018-11-28 12:41:12,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:12,292 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:12,292 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:12,292 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:12,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:12,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1698847677, now seen corresponding path program 1 times [2018-11-28 12:41:12,292 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:41:12,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:41:12,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:12,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:12,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:41:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:41:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:41:12,329 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:41:12,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:41:12 BoogieIcfgContainer [2018-11-28 12:41:12,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:41:12,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:41:12,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:41:12,355 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:41:12,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:08" (3/4) ... [2018-11-28 12:41:12,359 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:41:12,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:41:12,359 INFO L168 Benchmark]: Toolchain (without parser) took 4349.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 286.3 MB). Free memory was 957.6 MB in the beginning and 1.3 GB in the end (delta: -309.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:12,360 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:12,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.15 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 941.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:12,361 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:12,361 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:12,362 INFO L168 Benchmark]: RCFGBuilder took 328.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:41:12,362 INFO L168 Benchmark]: TraceAbstraction took 3755.46 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -205.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:12,362 INFO L168 Benchmark]: Witness Printer took 3.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:41:12,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.15 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 941.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3755.46 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 188.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -205.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 3.82 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L215] unsigned int a ; [L216] unsigned int ma = __VERIFIER_nondet_uint(); [L217] signed char ea = __VERIFIER_nondet_char(); [L218] unsigned int b ; [L219] unsigned int mb = __VERIFIER_nondet_uint(); [L220] signed char eb = __VERIFIER_nondet_char(); [L221] unsigned int r_add ; [L222] unsigned int zero ; [L223] int sa ; [L224] int sb ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int tmp___1 ; [L228] int tmp___2 ; [L229] int tmp___3 ; [L230] int tmp___4 ; [L231] int tmp___5 ; [L232] int tmp___6 ; [L233] int tmp___7 ; [L234] int tmp___8 ; [L235] int tmp___9 ; [L236] int __retres23 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L240] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L19] COND TRUE ! m [L20] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L70] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L240] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=0, ma=33554432, mb=16777216] [L240] zero = base2flt(0, 0) [L241] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L19] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L47] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L49] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L54] COND TRUE e >= 127 [L55] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L70] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L241] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L241] a = base2flt(ma, ea) [L242] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L15] unsigned int res ; [L16] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L19] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L25] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L47] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L49] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L66] m = m & ~ (1U << 24U) [L67] res = m | (unsigned int )((e + 128) << 24U) [L68] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=16777215, e=0, res=16777215] [L70] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-72057589726183425, __retres4=16777215, e=0, res=16777215] [L242] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=-72057589726183425, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L242] b = base2flt(mb, eb) [L244] COND FALSE !(a < zero) VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L247] COND TRUE a > zero [L248] tmp = 1 VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, tmp=1, zero=0] [L252] sa = tmp VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, zero=0] [L254] COND FALSE !(b < zero) VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, zero=0] [L257] COND TRUE b > zero [L258] tmp___0 = 1 VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, tmp___0=1, zero=0] [L262] sb = tmp___0 VAL [a=4294967295, b=16777215, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L265] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=16777215] [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=16777215, a=4294967295, b=16777215] [L84] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=16777215, a=4294967295, b=16777215] [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=16777215, a=4294967295, b=16777215, ea=127, eb=128] [L104] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. UNSAFE Result, 3.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 729 SDtfs, 822 SDslu, 6584 SDs, 0 SdLazy, 2627 SolverSat, 110 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 154 SyntacticMatches, 9 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 189 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 422 ConstructedInterpolants, 0 QuantifiedInterpolants, 61789 SizeOfPredicates, 17 NumberOfNonLiveVariables, 504 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 115/160 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:41:13,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:41:13,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:41:13,832 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:41:13,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:41:13,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:41:13,834 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:41:13,835 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:41:13,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:41:13,836 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:41:13,837 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:41:13,837 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:41:13,838 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:41:13,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:41:13,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:41:13,840 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:41:13,841 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:41:13,842 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:41:13,843 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:41:13,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:41:13,846 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:41:13,846 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:41:13,848 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:41:13,848 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:41:13,848 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:41:13,850 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:41:13,850 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:41:13,851 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:41:13,851 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:41:13,852 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:41:13,852 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:41:13,853 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:41:13,853 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:41:13,853 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:41:13,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:41:13,854 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:41:13,855 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:41:13,865 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:41:13,865 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:41:13,866 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:41:13,866 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:41:13,866 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:41:13,866 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:41:13,866 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:41:13,867 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:41:13,867 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:41:13,868 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:41:13,868 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:41:13,869 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:41:13,869 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:41:13,870 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 -> f756365182c9801d4a2ac186a40692687a86b469 [2018-11-28 12:41:13,893 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:41:13,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:41:13,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:41:13,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:41:13,904 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:41:13,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:13,941 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/9b84b1d64/ba822e7ebeb04a358a5dd0388e82c1d1/FLAG1fdfc61f4 [2018-11-28 12:41:14,250 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:41:14,251 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/sv-benchmarks/c/bitvector/soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:14,256 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/9b84b1d64/ba822e7ebeb04a358a5dd0388e82c1d1/FLAG1fdfc61f4 [2018-11-28 12:41:14,264 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/data/9b84b1d64/ba822e7ebeb04a358a5dd0388e82c1d1 [2018-11-28 12:41:14,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:41:14,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:41:14,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:41:14,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:41:14,273 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:41:14,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb152d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14, skipping insertion in model container [2018-11-28 12:41:14,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:41:14,298 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:41:14,434 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:41:14,436 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:41:14,466 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:41:14,475 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:41:14,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14 WrapperNode [2018-11-28 12:41:14,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:41:14,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:41:14,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:41:14,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:41:14,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:41:14,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:41:14,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:41:14,499 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:41:14,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... [2018-11-28 12:41:14,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:41:14,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:41:14,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:41:14,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:41:14,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/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 [2018-11-28 12:41:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:41:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:41:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2018-11-28 12:41:14,623 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2018-11-28 12:41:14,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2018-11-28 12:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2018-11-28 12:41:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:41:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:41:14,903 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:41:14,903 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:41:14,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:14 BoogieIcfgContainer [2018-11-28 12:41:14,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:41:14,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:41:14,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:41:14,907 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:41:14,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:41:14" (1/3) ... [2018-11-28 12:41:14,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c67374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:41:14, skipping insertion in model container [2018-11-28 12:41:14,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:41:14" (2/3) ... [2018-11-28 12:41:14,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c67374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:41:14, skipping insertion in model container [2018-11-28 12:41:14,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:14" (3/3) ... [2018-11-28 12:41:14,910 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1_true-unreach-call_true-no-overflow_true-termination.c.cil.c [2018-11-28 12:41:14,918 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:41:14,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:41:14,935 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:41:14,952 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:41:14,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:41:14,953 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:41:14,953 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:41:14,953 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:41:14,953 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:41:14,953 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:41:14,953 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:41:14,953 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:41:14,966 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-28 12:41:14,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 12:41:14,970 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:14,970 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:14,972 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:14,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:14,975 INFO L82 PathProgramCache]: Analyzing trace with hash -441638981, now seen corresponding path program 1 times [2018-11-28 12:41:14,977 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:14,977 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:14,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:15,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,131 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:15,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,170 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:15,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 12:41:15,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:41:15,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:41:15,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:41:15,182 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 9 states. [2018-11-28 12:41:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:15,440 INFO L93 Difference]: Finished difference Result 199 states and 318 transitions. [2018-11-28 12:41:15,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:41:15,442 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-28 12:41:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:15,450 INFO L225 Difference]: With dead ends: 199 [2018-11-28 12:41:15,450 INFO L226 Difference]: Without dead ends: 120 [2018-11-28 12:41:15,453 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:41:15,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-28 12:41:15,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2018-11-28 12:41:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-11-28 12:41:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2018-11-28 12:41:15,491 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 154 transitions. Word has length 36 [2018-11-28 12:41:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:15,492 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 154 transitions. [2018-11-28 12:41:15,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:41:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 154 transitions. [2018-11-28 12:41:15,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 12:41:15,494 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:15,495 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:15,495 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:15,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:15,495 INFO L82 PathProgramCache]: Analyzing trace with hash 306755114, now seen corresponding path program 1 times [2018-11-28 12:41:15,496 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:15,496 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:15,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:15,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:15,593 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,593 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,654 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:15,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 12:41:15,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:41:15,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:41:15,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:15,657 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. Second operand 6 states. [2018-11-28 12:41:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:15,792 INFO L93 Difference]: Finished difference Result 185 states and 283 transitions. [2018-11-28 12:41:15,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:41:15,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-11-28 12:41:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:15,795 INFO L225 Difference]: With dead ends: 185 [2018-11-28 12:41:15,795 INFO L226 Difference]: Without dead ends: 140 [2018-11-28 12:41:15,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:41:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-28 12:41:15,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 133. [2018-11-28 12:41:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-28 12:41:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 201 transitions. [2018-11-28 12:41:15,813 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 201 transitions. Word has length 40 [2018-11-28 12:41:15,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:15,813 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 201 transitions. [2018-11-28 12:41:15,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:41:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 201 transitions. [2018-11-28 12:41:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-28 12:41:15,815 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:15,815 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:15,816 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:15,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:15,816 INFO L82 PathProgramCache]: Analyzing trace with hash -842119066, now seen corresponding path program 1 times [2018-11-28 12:41:15,816 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:15,816 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:15,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:15,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,867 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:15,915 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:15,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-28 12:41:15,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:41:15,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:41:15,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:15,916 INFO L87 Difference]: Start difference. First operand 133 states and 201 transitions. Second operand 6 states. [2018-11-28 12:41:15,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:15,994 INFO L93 Difference]: Finished difference Result 301 states and 470 transitions. [2018-11-28 12:41:15,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:41:15,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-11-28 12:41:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:15,997 INFO L225 Difference]: With dead ends: 301 [2018-11-28 12:41:15,997 INFO L226 Difference]: Without dead ends: 216 [2018-11-28 12:41:15,998 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:41:15,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-11-28 12:41:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 156. [2018-11-28 12:41:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-11-28 12:41:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions. [2018-11-28 12:41:16,015 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 40 [2018-11-28 12:41:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:16,016 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 238 transitions. [2018-11-28 12:41:16,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:41:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2018-11-28 12:41:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 12:41:16,018 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:16,018 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:16,018 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:16,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:16,019 INFO L82 PathProgramCache]: Analyzing trace with hash 377249800, now seen corresponding path program 1 times [2018-11-28 12:41:16,019 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:16,019 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:16,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:16,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:16,132 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:16,191 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:16,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-28 12:41:16,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:16,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:16,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:16,192 INFO L87 Difference]: Start difference. First operand 156 states and 238 transitions. Second operand 8 states. [2018-11-28 12:41:16,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:16,300 INFO L93 Difference]: Finished difference Result 215 states and 325 transitions. [2018-11-28 12:41:16,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:41:16,300 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2018-11-28 12:41:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:16,301 INFO L225 Difference]: With dead ends: 215 [2018-11-28 12:41:16,301 INFO L226 Difference]: Without dead ends: 176 [2018-11-28 12:41:16,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:16,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-11-28 12:41:16,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 169. [2018-11-28 12:41:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-11-28 12:41:16,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2018-11-28 12:41:16,313 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 44 [2018-11-28 12:41:16,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:16,314 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2018-11-28 12:41:16,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:16,314 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2018-11-28 12:41:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 12:41:16,315 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:16,315 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:16,315 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:16,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:16,315 INFO L82 PathProgramCache]: Analyzing trace with hash 434508102, now seen corresponding path program 1 times [2018-11-28 12:41:16,315 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:16,316 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:16,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:16,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:16,389 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:16,389 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:16,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:16,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:41:16,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:16,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:16,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:16,391 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand 8 states. [2018-11-28 12:41:16,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:16,483 INFO L93 Difference]: Finished difference Result 378 states and 561 transitions. [2018-11-28 12:41:16,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:41:16,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2018-11-28 12:41:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:16,486 INFO L225 Difference]: With dead ends: 378 [2018-11-28 12:41:16,486 INFO L226 Difference]: Without dead ends: 283 [2018-11-28 12:41:16,487 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:16,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-11-28 12:41:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 273. [2018-11-28 12:41:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2018-11-28 12:41:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 395 transitions. [2018-11-28 12:41:16,501 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 395 transitions. Word has length 44 [2018-11-28 12:41:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:16,502 INFO L480 AbstractCegarLoop]: Abstraction has 273 states and 395 transitions. [2018-11-28 12:41:16,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 395 transitions. [2018-11-28 12:41:16,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:16,504 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:16,504 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:16,504 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:16,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:16,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1399634249, now seen corresponding path program 2 times [2018-11-28 12:41:16,505 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:16,505 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:16,517 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:41:16,531 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 12:41:16,531 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:41:16,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-28 12:41:16,569 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:16,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:16,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:41:16,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:41:16,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:41:16,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:41:16,571 INFO L87 Difference]: Start difference. First operand 273 states and 395 transitions. Second operand 7 states. [2018-11-28 12:41:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:16,741 INFO L93 Difference]: Finished difference Result 524 states and 777 transitions. [2018-11-28 12:41:16,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:41:16,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-28 12:41:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:16,743 INFO L225 Difference]: With dead ends: 524 [2018-11-28 12:41:16,744 INFO L226 Difference]: Without dead ends: 430 [2018-11-28 12:41:16,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:16,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2018-11-28 12:41:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 355. [2018-11-28 12:41:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2018-11-28 12:41:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 514 transitions. [2018-11-28 12:41:16,760 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 514 transitions. Word has length 48 [2018-11-28 12:41:16,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:16,760 INFO L480 AbstractCegarLoop]: Abstraction has 355 states and 514 transitions. [2018-11-28 12:41:16,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:41:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 514 transitions. [2018-11-28 12:41:16,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:16,762 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:16,762 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:16,763 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:16,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:16,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1006607239, now seen corresponding path program 1 times [2018-11-28 12:41:16,763 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:16,763 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:16,788 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:41:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:16,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-28 12:41:16,954 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:16,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:16,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-28 12:41:16,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:41:16,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:41:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:41:16,956 INFO L87 Difference]: Start difference. First operand 355 states and 514 transitions. Second operand 13 states. [2018-11-28 12:41:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:17,291 INFO L93 Difference]: Finished difference Result 422 states and 605 transitions. [2018-11-28 12:41:17,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 12:41:17,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2018-11-28 12:41:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:17,295 INFO L225 Difference]: With dead ends: 422 [2018-11-28 12:41:17,295 INFO L226 Difference]: Without dead ends: 389 [2018-11-28 12:41:17,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:41:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-11-28 12:41:17,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 372. [2018-11-28 12:41:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-11-28 12:41:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 533 transitions. [2018-11-28 12:41:17,312 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 533 transitions. Word has length 48 [2018-11-28 12:41:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:17,313 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 533 transitions. [2018-11-28 12:41:17,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:41:17,313 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 533 transitions. [2018-11-28 12:41:17,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:17,314 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:17,314 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:17,314 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:17,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1305820667, now seen corresponding path program 1 times [2018-11-28 12:41:17,315 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:17,315 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:17,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:17,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:17,409 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:17,464 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:17,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-28 12:41:17,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:41:17,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:41:17,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:41:17,465 INFO L87 Difference]: Start difference. First operand 372 states and 533 transitions. Second operand 9 states. [2018-11-28 12:41:17,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:17,605 INFO L93 Difference]: Finished difference Result 847 states and 1242 transitions. [2018-11-28 12:41:17,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:41:17,606 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2018-11-28 12:41:17,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:17,608 INFO L225 Difference]: With dead ends: 847 [2018-11-28 12:41:17,608 INFO L226 Difference]: Without dead ends: 698 [2018-11-28 12:41:17,609 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:41:17,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2018-11-28 12:41:17,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 438. [2018-11-28 12:41:17,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2018-11-28 12:41:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 624 transitions. [2018-11-28 12:41:17,631 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 624 transitions. Word has length 48 [2018-11-28 12:41:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:17,631 INFO L480 AbstractCegarLoop]: Abstraction has 438 states and 624 transitions. [2018-11-28 12:41:17,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:41:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 624 transitions. [2018-11-28 12:41:17,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:17,633 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:17,633 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:17,633 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:17,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:17,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1698847677, now seen corresponding path program 1 times [2018-11-28 12:41:17,633 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:17,634 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:17,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:17,687 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:17,764 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:17,764 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:17,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:17,913 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:17,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:17,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:17,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:17,994 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:17,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 12:41:17,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:41:17,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:41:17,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:41:17,996 INFO L87 Difference]: Start difference. First operand 438 states and 624 transitions. Second operand 11 states. [2018-11-28 12:41:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:18,323 INFO L93 Difference]: Finished difference Result 492 states and 698 transitions. [2018-11-28 12:41:18,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:41:18,324 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 48 [2018-11-28 12:41:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:18,326 INFO L225 Difference]: With dead ends: 492 [2018-11-28 12:41:18,327 INFO L226 Difference]: Without dead ends: 459 [2018-11-28 12:41:18,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-11-28 12:41:18,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2018-11-28 12:41:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 442. [2018-11-28 12:41:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-11-28 12:41:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 626 transitions. [2018-11-28 12:41:18,351 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 626 transitions. Word has length 48 [2018-11-28 12:41:18,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:18,351 INFO L480 AbstractCegarLoop]: Abstraction has 442 states and 626 transitions. [2018-11-28 12:41:18,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:41:18,351 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 626 transitions. [2018-11-28 12:41:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:18,353 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:18,353 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:18,353 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:18,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:18,353 INFO L82 PathProgramCache]: Analyzing trace with hash -294368905, now seen corresponding path program 1 times [2018-11-28 12:41:18,353 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:18,353 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:18,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:18,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:18,505 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:18,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:18,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:41:18,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:41:18,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:41:18,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:41:18,510 INFO L87 Difference]: Start difference. First operand 442 states and 626 transitions. Second operand 12 states. [2018-11-28 12:41:18,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:18,860 INFO L93 Difference]: Finished difference Result 545 states and 760 transitions. [2018-11-28 12:41:18,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 12:41:18,862 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2018-11-28 12:41:18,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:18,864 INFO L225 Difference]: With dead ends: 545 [2018-11-28 12:41:18,864 INFO L226 Difference]: Without dead ends: 446 [2018-11-28 12:41:18,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:41:18,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2018-11-28 12:41:18,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 411. [2018-11-28 12:41:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2018-11-28 12:41:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 578 transitions. [2018-11-28 12:41:18,881 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 578 transitions. Word has length 48 [2018-11-28 12:41:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:18,891 INFO L480 AbstractCegarLoop]: Abstraction has 411 states and 578 transitions. [2018-11-28 12:41:18,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:41:18,891 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 578 transitions. [2018-11-28 12:41:18,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:18,892 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:18,893 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:18,893 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:18,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:18,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1883881285, now seen corresponding path program 1 times [2018-11-28 12:41:18,893 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:18,893 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:18,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:18,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:41:19,038 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:19,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:19,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:41:19,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:41:19,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:41:19,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:19,041 INFO L87 Difference]: Start difference. First operand 411 states and 578 transitions. Second operand 6 states. [2018-11-28 12:41:20,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:20,145 INFO L93 Difference]: Finished difference Result 452 states and 627 transitions. [2018-11-28 12:41:20,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:41:20,146 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-28 12:41:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:20,147 INFO L225 Difference]: With dead ends: 452 [2018-11-28 12:41:20,147 INFO L226 Difference]: Without dead ends: 450 [2018-11-28 12:41:20,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2018-11-28 12:41:20,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 417. [2018-11-28 12:41:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2018-11-28 12:41:20,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2018-11-28 12:41:20,168 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 48 [2018-11-28 12:41:20,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:20,169 INFO L480 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2018-11-28 12:41:20,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:41:20,169 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2018-11-28 12:41:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-28 12:41:20,170 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:20,170 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:20,170 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:20,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:20,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1826622983, now seen corresponding path program 1 times [2018-11-28 12:41:20,171 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:20,171 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:20,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:20,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:41:20,307 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:20,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:20,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:41:20,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:41:20,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:41:20,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:20,310 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 6 states. [2018-11-28 12:41:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:23,838 INFO L93 Difference]: Finished difference Result 434 states and 602 transitions. [2018-11-28 12:41:23,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:41:23,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-11-28 12:41:23,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:23,840 INFO L225 Difference]: With dead ends: 434 [2018-11-28 12:41:23,841 INFO L226 Difference]: Without dead ends: 432 [2018-11-28 12:41:23,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-11-28 12:41:23,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 415. [2018-11-28 12:41:23,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2018-11-28 12:41:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 581 transitions. [2018-11-28 12:41:23,863 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 581 transitions. Word has length 48 [2018-11-28 12:41:23,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:23,864 INFO L480 AbstractCegarLoop]: Abstraction has 415 states and 581 transitions. [2018-11-28 12:41:23,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:41:23,864 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 581 transitions. [2018-11-28 12:41:23,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 12:41:23,865 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:23,865 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:23,865 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:23,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:23,866 INFO L82 PathProgramCache]: Analyzing trace with hash 609641055, now seen corresponding path program 1 times [2018-11-28 12:41:23,866 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:23,866 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:23,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:23,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:23,947 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:23,949 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:23,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:41:23,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:41:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:41:23,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:41:23,950 INFO L87 Difference]: Start difference. First operand 415 states and 581 transitions. Second operand 7 states. [2018-11-28 12:41:24,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,191 INFO L93 Difference]: Finished difference Result 632 states and 910 transitions. [2018-11-28 12:41:24,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:41:24,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-11-28 12:41:24,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,194 INFO L225 Difference]: With dead ends: 632 [2018-11-28 12:41:24,195 INFO L226 Difference]: Without dead ends: 537 [2018-11-28 12:41:24,195 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:41:24,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2018-11-28 12:41:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 407. [2018-11-28 12:41:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2018-11-28 12:41:24,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 568 transitions. [2018-11-28 12:41:24,223 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 568 transitions. Word has length 49 [2018-11-28 12:41:24,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,223 INFO L480 AbstractCegarLoop]: Abstraction has 407 states and 568 transitions. [2018-11-28 12:41:24,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:41:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 568 transitions. [2018-11-28 12:41:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 12:41:24,224 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,224 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,224 INFO L423 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,225 INFO L82 PathProgramCache]: Analyzing trace with hash 666899357, now seen corresponding path program 1 times [2018-11-28 12:41:24,225 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,225 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:24,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:24,291 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:24,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:24,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:41:24,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:41:24,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:41:24,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:41:24,294 INFO L87 Difference]: Start difference. First operand 407 states and 568 transitions. Second operand 4 states. [2018-11-28 12:41:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,324 INFO L93 Difference]: Finished difference Result 666 states and 963 transitions. [2018-11-28 12:41:24,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:41:24,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-28 12:41:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,326 INFO L225 Difference]: With dead ends: 666 [2018-11-28 12:41:24,327 INFO L226 Difference]: Without dead ends: 533 [2018-11-28 12:41:24,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:41:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2018-11-28 12:41:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 477. [2018-11-28 12:41:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-11-28 12:41:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 661 transitions. [2018-11-28 12:41:24,345 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 661 transitions. Word has length 49 [2018-11-28 12:41:24,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,345 INFO L480 AbstractCegarLoop]: Abstraction has 477 states and 661 transitions. [2018-11-28 12:41:24,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:41:24,345 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 661 transitions. [2018-11-28 12:41:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-28 12:41:24,347 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,347 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,347 INFO L423 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,347 INFO L82 PathProgramCache]: Analyzing trace with hash -855742356, now seen corresponding path program 1 times [2018-11-28 12:41:24,347 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,347 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:24,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 12:41:24,404 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:24,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:24,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:41:24,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:41:24,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:41:24,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:41:24,406 INFO L87 Difference]: Start difference. First operand 477 states and 661 transitions. Second operand 4 states. [2018-11-28 12:41:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,465 INFO L93 Difference]: Finished difference Result 865 states and 1185 transitions. [2018-11-28 12:41:24,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:41:24,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-11-28 12:41:24,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,467 INFO L225 Difference]: With dead ends: 865 [2018-11-28 12:41:24,467 INFO L226 Difference]: Without dead ends: 394 [2018-11-28 12:41:24,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:41:24,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-11-28 12:41:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 382. [2018-11-28 12:41:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-11-28 12:41:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 507 transitions. [2018-11-28 12:41:24,485 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 507 transitions. Word has length 49 [2018-11-28 12:41:24,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,485 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 507 transitions. [2018-11-28 12:41:24,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:41:24,485 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 507 transitions. [2018-11-28 12:41:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-28 12:41:24,486 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,487 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,487 INFO L423 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,487 INFO L82 PathProgramCache]: Analyzing trace with hash 849971633, now seen corresponding path program 1 times [2018-11-28 12:41:24,487 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,487 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:24,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:24,642 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:24,642 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:24,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:24,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:41:24,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:41:24,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:41:24,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:41:24,645 INFO L87 Difference]: Start difference. First operand 382 states and 507 transitions. Second operand 5 states. [2018-11-28 12:41:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,685 INFO L93 Difference]: Finished difference Result 389 states and 513 transitions. [2018-11-28 12:41:24,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:41:24,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-11-28 12:41:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,687 INFO L225 Difference]: With dead ends: 389 [2018-11-28 12:41:24,687 INFO L226 Difference]: Without dead ends: 382 [2018-11-28 12:41:24,688 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:24,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-11-28 12:41:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-11-28 12:41:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-11-28 12:41:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 503 transitions. [2018-11-28 12:41:24,712 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 503 transitions. Word has length 50 [2018-11-28 12:41:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,713 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 503 transitions. [2018-11-28 12:41:24,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:41:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 503 transitions. [2018-11-28 12:41:24,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-28 12:41:24,714 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,714 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,714 INFO L423 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1699165264, now seen corresponding path program 1 times [2018-11-28 12:41:24,715 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,715 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:24,794 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:24,802 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:24,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:24,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:24,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:41:24,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:41:24,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:41:24,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:41:24,810 INFO L87 Difference]: Start difference. First operand 382 states and 503 transitions. Second operand 4 states. [2018-11-28 12:41:24,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,850 INFO L93 Difference]: Finished difference Result 424 states and 556 transitions. [2018-11-28 12:41:24,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:41:24,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2018-11-28 12:41:24,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,852 INFO L225 Difference]: With dead ends: 424 [2018-11-28 12:41:24,852 INFO L226 Difference]: Without dead ends: 399 [2018-11-28 12:41:24,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:41:24,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-11-28 12:41:24,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 374. [2018-11-28 12:41:24,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2018-11-28 12:41:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 491 transitions. [2018-11-28 12:41:24,868 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 491 transitions. Word has length 53 [2018-11-28 12:41:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,868 INFO L480 AbstractCegarLoop]: Abstraction has 374 states and 491 transitions. [2018-11-28 12:41:24,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:41:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 491 transitions. [2018-11-28 12:41:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-28 12:41:24,869 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,869 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,869 INFO L423 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1987036572, now seen corresponding path program 1 times [2018-11-28 12:41:24,870 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,870 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:24,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:24,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:24,920 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:24,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:24,922 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:41:24,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:41:24,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:41:24,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:41:24,923 INFO L87 Difference]: Start difference. First operand 374 states and 491 transitions. Second operand 4 states. [2018-11-28 12:41:24,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:24,946 INFO L93 Difference]: Finished difference Result 391 states and 510 transitions. [2018-11-28 12:41:24,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:41:24,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-28 12:41:24,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:24,947 INFO L225 Difference]: With dead ends: 391 [2018-11-28 12:41:24,947 INFO L226 Difference]: Without dead ends: 321 [2018-11-28 12:41:24,948 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:41:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2018-11-28 12:41:24,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2018-11-28 12:41:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2018-11-28 12:41:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 404 transitions. [2018-11-28 12:41:24,959 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 404 transitions. Word has length 54 [2018-11-28 12:41:24,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:24,959 INFO L480 AbstractCegarLoop]: Abstraction has 319 states and 404 transitions. [2018-11-28 12:41:24,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:41:24,959 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 404 transitions. [2018-11-28 12:41:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:24,960 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:24,961 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:24,961 INFO L423 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:24,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:24,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1813382670, now seen corresponding path program 1 times [2018-11-28 12:41:24,961 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:24,961 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:24,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:25,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-28 12:41:25,131 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:25,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:25,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-28 12:41:25,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:41:25,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:41:25,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:41:25,134 INFO L87 Difference]: Start difference. First operand 319 states and 404 transitions. Second operand 13 states. [2018-11-28 12:41:25,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:25,420 INFO L93 Difference]: Finished difference Result 385 states and 486 transitions. [2018-11-28 12:41:25,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:41:25,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2018-11-28 12:41:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:25,422 INFO L225 Difference]: With dead ends: 385 [2018-11-28 12:41:25,422 INFO L226 Difference]: Without dead ends: 337 [2018-11-28 12:41:25,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2018-11-28 12:41:25,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-11-28 12:41:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 314. [2018-11-28 12:41:25,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-11-28 12:41:25,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 396 transitions. [2018-11-28 12:41:25,444 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 396 transitions. Word has length 56 [2018-11-28 12:41:25,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:25,444 INFO L480 AbstractCegarLoop]: Abstraction has 314 states and 396 transitions. [2018-11-28 12:41:25,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:41:25,444 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 396 transitions. [2018-11-28 12:41:25,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:25,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:25,446 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-28 12:41:25,446 INFO L423 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:25,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:25,446 INFO L82 PathProgramCache]: Analyzing trace with hash -848138954, now seen corresponding path program 1 times [2018-11-28 12:41:25,446 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:25,446 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:25,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:25,510 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:26,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:26,604 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:41:26,604 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:41:26,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:26,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:26,676 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:26,676 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:26,738 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:26,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-11-28 12:41:26,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:41:26,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:41:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:41:26,739 INFO L87 Difference]: Start difference. First operand 314 states and 396 transitions. Second operand 11 states. [2018-11-28 12:41:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:30,723 INFO L93 Difference]: Finished difference Result 369 states and 467 transitions. [2018-11-28 12:41:30,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 12:41:30,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2018-11-28 12:41:30,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:30,724 INFO L225 Difference]: With dead ends: 369 [2018-11-28 12:41:30,724 INFO L226 Difference]: Without dead ends: 335 [2018-11-28 12:41:30,724 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2018-11-28 12:41:30,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-11-28 12:41:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 312. [2018-11-28 12:41:30,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-11-28 12:41:30,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 392 transitions. [2018-11-28 12:41:30,743 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 392 transitions. Word has length 56 [2018-11-28 12:41:30,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:30,744 INFO L480 AbstractCegarLoop]: Abstraction has 312 states and 392 transitions. [2018-11-28 12:41:30,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:41:30,744 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 392 transitions. [2018-11-28 12:41:30,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-28 12:41:30,745 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:30,745 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:30,745 INFO L423 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:30,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:30,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1591720731, now seen corresponding path program 1 times [2018-11-28 12:41:30,746 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:30,746 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:30,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:30,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:30,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-28 12:41:30,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:30,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:30,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:41:30,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:41:30,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:41:30,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:41:30,837 INFO L87 Difference]: Start difference. First operand 312 states and 392 transitions. Second operand 6 states. [2018-11-28 12:41:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:31,004 INFO L93 Difference]: Finished difference Result 396 states and 511 transitions. [2018-11-28 12:41:31,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:41:31,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-11-28 12:41:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:31,005 INFO L225 Difference]: With dead ends: 396 [2018-11-28 12:41:31,006 INFO L226 Difference]: Without dead ends: 349 [2018-11-28 12:41:31,006 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:41:31,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2018-11-28 12:41:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 318. [2018-11-28 12:41:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-11-28 12:41:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 398 transitions. [2018-11-28 12:41:31,019 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 398 transitions. Word has length 55 [2018-11-28 12:41:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:31,019 INFO L480 AbstractCegarLoop]: Abstraction has 318 states and 398 transitions. [2018-11-28 12:41:31,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:41:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 398 transitions. [2018-11-28 12:41:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:31,020 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:31,020 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-28 12:41:31,020 INFO L423 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:31,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:31,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1440743184, now seen corresponding path program 1 times [2018-11-28 12:41:31,021 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:31,021 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:31,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:31,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:31,213 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-28 12:41:31,213 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:31,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:31,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:41:31,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:41:31,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:41:31,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:41:31,215 INFO L87 Difference]: Start difference. First operand 318 states and 398 transitions. Second operand 12 states. [2018-11-28 12:41:37,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:37,378 INFO L93 Difference]: Finished difference Result 365 states and 458 transitions. [2018-11-28 12:41:37,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 12:41:37,378 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-11-28 12:41:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:37,380 INFO L225 Difference]: With dead ends: 365 [2018-11-28 12:41:37,380 INFO L226 Difference]: Without dead ends: 329 [2018-11-28 12:41:37,380 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=93, Invalid=368, Unknown=1, NotChecked=0, Total=462 [2018-11-28 12:41:37,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-11-28 12:41:37,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 316. [2018-11-28 12:41:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-11-28 12:41:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 394 transitions. [2018-11-28 12:41:37,400 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 394 transitions. Word has length 56 [2018-11-28 12:41:37,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:37,401 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 394 transitions. [2018-11-28 12:41:37,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:41:37,401 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 394 transitions. [2018-11-28 12:41:37,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:37,402 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:37,402 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:37,402 INFO L423 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:37,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:37,402 INFO L82 PathProgramCache]: Analyzing trace with hash -475499468, now seen corresponding path program 1 times [2018-11-28 12:41:37,402 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:37,403 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:37,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:37,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:41:40,309 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:40,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:40,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:41:40,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:40,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:40,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=37, Unknown=1, NotChecked=0, Total=56 [2018-11-28 12:41:40,318 INFO L87 Difference]: Start difference. First operand 316 states and 394 transitions. Second operand 8 states. [2018-11-28 12:41:52,663 WARN L180 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-11-28 12:41:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:54,787 INFO L93 Difference]: Finished difference Result 339 states and 420 transitions. [2018-11-28 12:41:54,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:41:54,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2018-11-28 12:41:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:54,788 INFO L225 Difference]: With dead ends: 339 [2018-11-28 12:41:54,788 INFO L226 Difference]: Without dead ends: 337 [2018-11-28 12:41:54,788 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=27, Invalid=61, Unknown=2, NotChecked=0, Total=90 [2018-11-28 12:41:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-11-28 12:41:54,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 321. [2018-11-28 12:41:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2018-11-28 12:41:54,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 399 transitions. [2018-11-28 12:41:54,809 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 399 transitions. Word has length 56 [2018-11-28 12:41:54,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:54,809 INFO L480 AbstractCegarLoop]: Abstraction has 321 states and 399 transitions. [2018-11-28 12:41:54,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 399 transitions. [2018-11-28 12:41:54,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:54,811 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:54,811 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:54,811 INFO L423 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:54,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:54,811 INFO L82 PathProgramCache]: Analyzing trace with hash -695289963, now seen corresponding path program 1 times [2018-11-28 12:41:54,811 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:54,811 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:54,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:54,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:41:54,959 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:54,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:54,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:41:54,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:41:54,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:41:54,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:41:54,962 INFO L87 Difference]: Start difference. First operand 321 states and 399 transitions. Second operand 12 states. [2018-11-28 12:41:55,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:55,233 INFO L93 Difference]: Finished difference Result 393 states and 496 transitions. [2018-11-28 12:41:55,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:41:55,234 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-11-28 12:41:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:55,235 INFO L225 Difference]: With dead ends: 393 [2018-11-28 12:41:55,235 INFO L226 Difference]: Without dead ends: 368 [2018-11-28 12:41:55,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:41:55,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-11-28 12:41:55,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 337. [2018-11-28 12:41:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-11-28 12:41:55,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 422 transitions. [2018-11-28 12:41:55,260 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 422 transitions. Word has length 56 [2018-11-28 12:41:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:55,260 INFO L480 AbstractCegarLoop]: Abstraction has 337 states and 422 transitions. [2018-11-28 12:41:55,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:41:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 422 transitions. [2018-11-28 12:41:55,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-28 12:41:55,261 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:55,262 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:55,262 INFO L423 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:55,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:55,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1684269273, now seen corresponding path program 1 times [2018-11-28 12:41:55,262 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:55,262 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:55,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:55,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:55,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:55,344 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:55,344 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:41:55,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:41:55,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:41:55,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:41:55,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:41:55,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:41:55,346 INFO L87 Difference]: Start difference. First operand 337 states and 422 transitions. Second operand 8 states. [2018-11-28 12:41:55,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:55,540 INFO L93 Difference]: Finished difference Result 408 states and 518 transitions. [2018-11-28 12:41:55,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:41:55,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2018-11-28 12:41:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:55,541 INFO L225 Difference]: With dead ends: 408 [2018-11-28 12:41:55,541 INFO L226 Difference]: Without dead ends: 389 [2018-11-28 12:41:55,541 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:55,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-11-28 12:41:55,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 339. [2018-11-28 12:41:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-11-28 12:41:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 433 transitions. [2018-11-28 12:41:55,564 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 433 transitions. Word has length 56 [2018-11-28 12:41:55,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:55,564 INFO L480 AbstractCegarLoop]: Abstraction has 339 states and 433 transitions. [2018-11-28 12:41:55,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:41:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 433 transitions. [2018-11-28 12:41:55,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 12:41:55,566 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:55,566 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:55,566 INFO L423 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:55,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:55,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1873150989, now seen corresponding path program 1 times [2018-11-28 12:41:55,566 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:55,566 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:55,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:55,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:41:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:41:55,671 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:41:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-28 12:41:55,711 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:41:55,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-28 12:41:55,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:41:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:41:55,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:41:55,712 INFO L87 Difference]: Start difference. First operand 339 states and 433 transitions. Second operand 10 states. [2018-11-28 12:41:55,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:41:55,846 INFO L93 Difference]: Finished difference Result 492 states and 595 transitions. [2018-11-28 12:41:55,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:41:55,847 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-11-28 12:41:55,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:41:55,848 INFO L225 Difference]: With dead ends: 492 [2018-11-28 12:41:55,848 INFO L226 Difference]: Without dead ends: 339 [2018-11-28 12:41:55,849 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-11-28 12:41:55,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-11-28 12:41:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 298. [2018-11-28 12:41:55,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2018-11-28 12:41:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 382 transitions. [2018-11-28 12:41:55,869 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 382 transitions. Word has length 57 [2018-11-28 12:41:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:41:55,870 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 382 transitions. [2018-11-28 12:41:55,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:41:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 382 transitions. [2018-11-28 12:41:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 12:41:55,870 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:41:55,871 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:41:55,871 INFO L423 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:41:55,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:41:55,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2092005707, now seen corresponding path program 1 times [2018-11-28 12:41:55,871 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:41:55,871 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 30 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:41:55,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:41:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:41:55,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:42:04,642 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:04,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:04,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:42:04,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:42:04,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:42:04,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=38, Unknown=4, NotChecked=0, Total=56 [2018-11-28 12:42:04,644 INFO L87 Difference]: Start difference. First operand 298 states and 382 transitions. Second operand 8 states. [2018-11-28 12:42:16,104 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 24 [2018-11-28 12:42:24,381 WARN L180 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 24 [2018-11-28 12:42:34,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:34,432 INFO L93 Difference]: Finished difference Result 314 states and 397 transitions. [2018-11-28 12:42:34,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:42:34,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2018-11-28 12:42:34,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:34,434 INFO L225 Difference]: With dead ends: 314 [2018-11-28 12:42:34,434 INFO L226 Difference]: Without dead ends: 312 [2018-11-28 12:42:34,434 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=28, Invalid=76, Unknown=6, NotChecked=0, Total=110 [2018-11-28 12:42:34,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2018-11-28 12:42:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 297. [2018-11-28 12:42:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-11-28 12:42:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 380 transitions. [2018-11-28 12:42:34,457 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 380 transitions. Word has length 57 [2018-11-28 12:42:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:34,457 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 380 transitions. [2018-11-28 12:42:34,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:42:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 380 transitions. [2018-11-28 12:42:34,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-28 12:42:34,458 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:34,458 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:34,459 INFO L423 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:34,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:34,459 INFO L82 PathProgramCache]: Analyzing trace with hash -364789831, now seen corresponding path program 1 times [2018-11-28 12:42:34,459 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:34,459 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 31 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:34,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:34,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-28 12:42:34,524 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:34,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:34,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:42:34,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:42:34,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:42:34,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:42:34,527 INFO L87 Difference]: Start difference. First operand 297 states and 380 transitions. Second operand 5 states. [2018-11-28 12:42:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:34,662 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions. [2018-11-28 12:42:34,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:42:34,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2018-11-28 12:42:34,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:34,665 INFO L225 Difference]: With dead ends: 332 [2018-11-28 12:42:34,665 INFO L226 Difference]: Without dead ends: 309 [2018-11-28 12:42:34,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:34,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-11-28 12:42:34,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 297. [2018-11-28 12:42:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-11-28 12:42:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 378 transitions. [2018-11-28 12:42:34,688 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 378 transitions. Word has length 57 [2018-11-28 12:42:34,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:34,688 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 378 transitions. [2018-11-28 12:42:34,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:42:34,688 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 378 transitions. [2018-11-28 12:42:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-28 12:42:34,689 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:34,689 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:34,689 INFO L423 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:34,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:34,689 INFO L82 PathProgramCache]: Analyzing trace with hash 306992977, now seen corresponding path program 1 times [2018-11-28 12:42:34,690 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:34,690 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 32 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:34,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:34,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:42:34,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:34,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:34,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:42:34,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:42:34,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:42:34,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:42:34,750 INFO L87 Difference]: Start difference. First operand 297 states and 378 transitions. Second operand 4 states. [2018-11-28 12:42:34,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:34,801 INFO L93 Difference]: Finished difference Result 306 states and 386 transitions. [2018-11-28 12:42:34,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:42:34,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-11-28 12:42:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:34,803 INFO L225 Difference]: With dead ends: 306 [2018-11-28 12:42:34,803 INFO L226 Difference]: Without dead ends: 264 [2018-11-28 12:42:34,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:42:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2018-11-28 12:42:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 254. [2018-11-28 12:42:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-11-28 12:42:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 316 transitions. [2018-11-28 12:42:34,824 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 316 transitions. Word has length 58 [2018-11-28 12:42:34,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:34,824 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 316 transitions. [2018-11-28 12:42:34,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:42:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 316 transitions. [2018-11-28 12:42:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-28 12:42:34,825 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:34,825 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:34,825 INFO L423 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:34,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:34,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1560523616, now seen corresponding path program 1 times [2018-11-28 12:42:34,826 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:34,826 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 33 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:34,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:34,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:34,912 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:42:34,912 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:34,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:34,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:42:34,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:42:34,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:42:34,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:42:34,914 INFO L87 Difference]: Start difference. First operand 254 states and 316 transitions. Second operand 8 states. [2018-11-28 12:42:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:35,102 INFO L93 Difference]: Finished difference Result 348 states and 445 transitions. [2018-11-28 12:42:35,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:42:35,102 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2018-11-28 12:42:35,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:35,103 INFO L225 Difference]: With dead ends: 348 [2018-11-28 12:42:35,103 INFO L226 Difference]: Without dead ends: 308 [2018-11-28 12:42:35,104 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:42:35,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-11-28 12:42:35,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 286. [2018-11-28 12:42:35,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-11-28 12:42:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 361 transitions. [2018-11-28 12:42:35,122 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 361 transitions. Word has length 62 [2018-11-28 12:42:35,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:35,122 INFO L480 AbstractCegarLoop]: Abstraction has 286 states and 361 transitions. [2018-11-28 12:42:35,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:42:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 361 transitions. [2018-11-28 12:42:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-28 12:42:35,123 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:35,123 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:35,124 INFO L423 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:35,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:35,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1628619175, now seen corresponding path program 1 times [2018-11-28 12:42:35,124 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:35,124 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 34 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:35,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:35,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:35,184 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:42:35,184 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:35,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:35,185 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:42:35,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:42:35,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:42:35,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:35,186 INFO L87 Difference]: Start difference. First operand 286 states and 361 transitions. Second operand 6 states. [2018-11-28 12:42:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:35,242 INFO L93 Difference]: Finished difference Result 377 states and 489 transitions. [2018-11-28 12:42:35,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:42:35,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-11-28 12:42:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:35,244 INFO L225 Difference]: With dead ends: 377 [2018-11-28 12:42:35,244 INFO L226 Difference]: Without dead ends: 304 [2018-11-28 12:42:35,244 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:42:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-11-28 12:42:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 268. [2018-11-28 12:42:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-11-28 12:42:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 322 transitions. [2018-11-28 12:42:35,257 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 322 transitions. Word has length 64 [2018-11-28 12:42:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:35,257 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 322 transitions. [2018-11-28 12:42:35,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:42:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 322 transitions. [2018-11-28 12:42:35,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-28 12:42:35,258 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:35,258 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-28 12:42:35,258 INFO L423 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:35,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1905751366, now seen corresponding path program 1 times [2018-11-28 12:42:35,258 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:35,259 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 35 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:35,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:35,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-28 12:42:35,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:35,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:35,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:42:35,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:42:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:42:35,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:35,348 INFO L87 Difference]: Start difference. First operand 268 states and 322 transitions. Second operand 6 states. [2018-11-28 12:42:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:35,386 INFO L93 Difference]: Finished difference Result 309 states and 374 transitions. [2018-11-28 12:42:35,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:42:35,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-11-28 12:42:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:35,388 INFO L225 Difference]: With dead ends: 309 [2018-11-28 12:42:35,388 INFO L226 Difference]: Without dead ends: 307 [2018-11-28 12:42:35,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:42:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2018-11-28 12:42:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 277. [2018-11-28 12:42:35,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-11-28 12:42:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 333 transitions. [2018-11-28 12:42:35,401 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 333 transitions. Word has length 64 [2018-11-28 12:42:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:35,401 INFO L480 AbstractCegarLoop]: Abstraction has 277 states and 333 transitions. [2018-11-28 12:42:35,401 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:42:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 333 transitions. [2018-11-28 12:42:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-28 12:42:35,402 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:35,402 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-28 12:42:35,402 INFO L423 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:35,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1397816770, now seen corresponding path program 1 times [2018-11-28 12:42:35,402 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:35,403 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 36 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:35,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:35,468 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-28 12:42:35,481 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:35,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:35,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:42:35,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:42:35,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:42:35,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:35,483 INFO L87 Difference]: Start difference. First operand 277 states and 333 transitions. Second operand 6 states. [2018-11-28 12:42:35,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:35,525 INFO L93 Difference]: Finished difference Result 306 states and 365 transitions. [2018-11-28 12:42:35,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:42:35,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-11-28 12:42:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:35,526 INFO L225 Difference]: With dead ends: 306 [2018-11-28 12:42:35,526 INFO L226 Difference]: Without dead ends: 304 [2018-11-28 12:42:35,527 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:42:35,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-11-28 12:42:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 281. [2018-11-28 12:42:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-11-28 12:42:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 336 transitions. [2018-11-28 12:42:35,542 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 336 transitions. Word has length 64 [2018-11-28 12:42:35,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:35,542 INFO L480 AbstractCegarLoop]: Abstraction has 281 states and 336 transitions. [2018-11-28 12:42:35,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:42:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 336 transitions. [2018-11-28 12:42:35,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-28 12:42:35,543 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:35,543 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-28 12:42:35,543 INFO L423 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:35,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:35,543 INFO L82 PathProgramCache]: Analyzing trace with hash -186874661, now seen corresponding path program 1 times [2018-11-28 12:42:35,543 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:35,543 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 37 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:35,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:35,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-28 12:42:36,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:42:36,606 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2018-11-28 12:42:38,044 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-28 12:42:38,046 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:42:38,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2018-11-28 12:42:38,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-28 12:42:38,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-28 12:42:38,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2018-11-28 12:42:38,047 INFO L87 Difference]: Start difference. First operand 281 states and 336 transitions. Second operand 26 states. [2018-11-28 12:42:38,407 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-11-28 12:42:39,536 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-11-28 12:42:40,181 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-11-28 12:42:42,298 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-11-28 12:42:42,915 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-11-28 12:42:43,493 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2018-11-28 12:42:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:44,627 INFO L93 Difference]: Finished difference Result 375 states and 460 transitions. [2018-11-28 12:42:44,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-28 12:42:44,628 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 69 [2018-11-28 12:42:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:44,630 INFO L225 Difference]: With dead ends: 375 [2018-11-28 12:42:44,630 INFO L226 Difference]: Without dead ends: 347 [2018-11-28 12:42:44,631 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=359, Invalid=2091, Unknown=0, NotChecked=0, Total=2450 [2018-11-28 12:42:44,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2018-11-28 12:42:44,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 300. [2018-11-28 12:42:44,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-11-28 12:42:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 361 transitions. [2018-11-28 12:42:44,648 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 361 transitions. Word has length 69 [2018-11-28 12:42:44,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:44,648 INFO L480 AbstractCegarLoop]: Abstraction has 300 states and 361 transitions. [2018-11-28 12:42:44,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-28 12:42:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 361 transitions. [2018-11-28 12:42:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-28 12:42:44,649 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:44,649 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:44,649 INFO L423 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:44,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:44,649 INFO L82 PathProgramCache]: Analyzing trace with hash 457791470, now seen corresponding path program 1 times [2018-11-28 12:42:44,650 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:44,650 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 38 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:44,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:44,683 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 12:42:44,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:42:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 12:42:44,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:42:44,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2018-11-28 12:42:44,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:42:44,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:42:44,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:42:44,865 INFO L87 Difference]: Start difference. First operand 300 states and 361 transitions. Second operand 14 states. [2018-11-28 12:42:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:45,160 INFO L93 Difference]: Finished difference Result 327 states and 392 transitions. [2018-11-28 12:42:45,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-28 12:42:45,160 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-11-28 12:42:45,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:45,161 INFO L225 Difference]: With dead ends: 327 [2018-11-28 12:42:45,161 INFO L226 Difference]: Without dead ends: 320 [2018-11-28 12:42:45,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 124 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2018-11-28 12:42:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-11-28 12:42:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 297. [2018-11-28 12:42:45,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-11-28 12:42:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 358 transitions. [2018-11-28 12:42:45,180 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 358 transitions. Word has length 70 [2018-11-28 12:42:45,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:45,180 INFO L480 AbstractCegarLoop]: Abstraction has 297 states and 358 transitions. [2018-11-28 12:42:45,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:42:45,180 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 358 transitions. [2018-11-28 12:42:45,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-28 12:42:45,181 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:45,181 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:45,181 INFO L423 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:45,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:45,182 INFO L82 PathProgramCache]: Analyzing trace with hash -297341722, now seen corresponding path program 2 times [2018-11-28 12:42:45,182 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:45,182 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 39 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:45,197 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-28 12:42:45,232 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 12:42:45,232 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 12:42:45,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 12:42:45,313 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:45,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:45,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:42:45,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:42:45,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:42:45,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:42:45,318 INFO L87 Difference]: Start difference. First operand 297 states and 358 transitions. Second operand 12 states. [2018-11-28 12:42:45,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:45,529 INFO L93 Difference]: Finished difference Result 320 states and 382 transitions. [2018-11-28 12:42:45,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 12:42:45,529 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2018-11-28 12:42:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:45,530 INFO L225 Difference]: With dead ends: 320 [2018-11-28 12:42:45,530 INFO L226 Difference]: Without dead ends: 313 [2018-11-28 12:42:45,531 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-11-28 12:42:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2018-11-28 12:42:45,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 289. [2018-11-28 12:42:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2018-11-28 12:42:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 348 transitions. [2018-11-28 12:42:45,548 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 348 transitions. Word has length 70 [2018-11-28 12:42:45,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:45,548 INFO L480 AbstractCegarLoop]: Abstraction has 289 states and 348 transitions. [2018-11-28 12:42:45,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:42:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 348 transitions. [2018-11-28 12:42:45,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-28 12:42:45,549 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:45,549 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-28 12:42:45,549 INFO L423 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:45,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:45,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1221744938, now seen corresponding path program 1 times [2018-11-28 12:42:45,549 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:45,549 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 40 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:45,563 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:42:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:45,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-28 12:42:45,616 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:45,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:45,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:42:45,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:42:45,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:42:45,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:45,618 INFO L87 Difference]: Start difference. First operand 289 states and 348 transitions. Second operand 6 states. [2018-11-28 12:42:45,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:45,802 INFO L93 Difference]: Finished difference Result 387 states and 474 transitions. [2018-11-28 12:42:45,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:42:45,802 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-11-28 12:42:45,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:45,803 INFO L225 Difference]: With dead ends: 387 [2018-11-28 12:42:45,803 INFO L226 Difference]: Without dead ends: 368 [2018-11-28 12:42:45,804 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:42:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2018-11-28 12:42:45,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 285. [2018-11-28 12:42:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-11-28 12:42:45,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 345 transitions. [2018-11-28 12:42:45,825 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 345 transitions. Word has length 70 [2018-11-28 12:42:45,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:45,825 INFO L480 AbstractCegarLoop]: Abstraction has 285 states and 345 transitions. [2018-11-28 12:42:45,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:42:45,825 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 345 transitions. [2018-11-28 12:42:45,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-28 12:42:45,826 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:45,826 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-11-28 12:42:45,826 INFO L423 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:45,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:45,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1115137352, now seen corresponding path program 1 times [2018-11-28 12:42:45,827 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:45,827 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 41 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:45,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:45,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-28 12:42:46,007 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:46,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:46,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:42:46,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:42:46,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:42:46,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:42:46,009 INFO L87 Difference]: Start difference. First operand 285 states and 345 transitions. Second operand 9 states. [2018-11-28 12:42:46,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:46,389 INFO L93 Difference]: Finished difference Result 335 states and 405 transitions. [2018-11-28 12:42:46,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:42:46,390 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-11-28 12:42:46,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:46,391 INFO L225 Difference]: With dead ends: 335 [2018-11-28 12:42:46,391 INFO L226 Difference]: Without dead ends: 294 [2018-11-28 12:42:46,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:42:46,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-11-28 12:42:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 266. [2018-11-28 12:42:46,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-11-28 12:42:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 314 transitions. [2018-11-28 12:42:46,411 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 314 transitions. Word has length 70 [2018-11-28 12:42:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:46,411 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 314 transitions. [2018-11-28 12:42:46,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:42:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 314 transitions. [2018-11-28 12:42:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-28 12:42:46,412 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:46,412 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:46,412 INFO L423 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:46,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:46,412 INFO L82 PathProgramCache]: Analyzing trace with hash -40698028, now seen corresponding path program 1 times [2018-11-28 12:42:46,412 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:46,412 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 42 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:46,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:46,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:46,487 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-28 12:42:46,488 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:46,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:46,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:42:46,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:42:46,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:42:46,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:42:46,490 INFO L87 Difference]: Start difference. First operand 266 states and 314 transitions. Second operand 6 states. [2018-11-28 12:42:46,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:46,531 INFO L93 Difference]: Finished difference Result 287 states and 336 transitions. [2018-11-28 12:42:46,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:42:46,531 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2018-11-28 12:42:46,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:46,532 INFO L225 Difference]: With dead ends: 287 [2018-11-28 12:42:46,532 INFO L226 Difference]: Without dead ends: 283 [2018-11-28 12:42:46,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:42:46,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-11-28 12:42:46,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 253. [2018-11-28 12:42:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-11-28 12:42:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 297 transitions. [2018-11-28 12:42:46,552 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 297 transitions. Word has length 72 [2018-11-28 12:42:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:46,552 INFO L480 AbstractCegarLoop]: Abstraction has 253 states and 297 transitions. [2018-11-28 12:42:46,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:42:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 297 transitions. [2018-11-28 12:42:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-28 12:42:46,553 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:46,553 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:46,553 INFO L423 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:46,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:46,553 INFO L82 PathProgramCache]: Analyzing trace with hash 16560274, now seen corresponding path program 1 times [2018-11-28 12:42:46,553 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:46,553 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 43 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:46,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:46,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-28 12:42:46,846 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-28 12:42:47,183 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:42:47,183 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:42:47,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:47,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-28 12:42:47,314 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:47,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:42:47,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2018-11-28 12:42:47,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-28 12:42:47,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-28 12:42:47,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2018-11-28 12:42:47,330 INFO L87 Difference]: Start difference. First operand 253 states and 297 transitions. Second operand 17 states. [2018-11-28 12:42:48,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:48,216 INFO L93 Difference]: Finished difference Result 302 states and 348 transitions. [2018-11-28 12:42:48,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-28 12:42:48,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 72 [2018-11-28 12:42:48,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:48,217 INFO L225 Difference]: With dead ends: 302 [2018-11-28 12:42:48,217 INFO L226 Difference]: Without dead ends: 158 [2018-11-28 12:42:48,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2018-11-28 12:42:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-11-28 12:42:48,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 138. [2018-11-28 12:42:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-28 12:42:48,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 168 transitions. [2018-11-28 12:42:48,228 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 168 transitions. Word has length 72 [2018-11-28 12:42:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:48,228 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 168 transitions. [2018-11-28 12:42:48,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-28 12:42:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 168 transitions. [2018-11-28 12:42:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-28 12:42:48,229 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:48,229 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:48,229 INFO L423 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:48,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:48,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1073890760, now seen corresponding path program 1 times [2018-11-28 12:42:48,230 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:48,230 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 45 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:48,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:48,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:42:48,285 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:48,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:48,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 12:42:48,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 12:42:48,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 12:42:48,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 12:42:48,290 INFO L87 Difference]: Start difference. First operand 138 states and 168 transitions. Second operand 4 states. [2018-11-28 12:42:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:48,311 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2018-11-28 12:42:48,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 12:42:48,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-11-28 12:42:48,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:48,312 INFO L225 Difference]: With dead ends: 162 [2018-11-28 12:42:48,313 INFO L226 Difference]: Without dead ends: 138 [2018-11-28 12:42:48,313 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:42:48,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-11-28 12:42:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2018-11-28 12:42:48,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-11-28 12:42:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2018-11-28 12:42:48,323 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 71 [2018-11-28 12:42:48,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:48,324 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2018-11-28 12:42:48,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 12:42:48,324 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2018-11-28 12:42:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-28 12:42:48,324 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:48,324 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:48,324 INFO L423 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:48,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1571950312, now seen corresponding path program 1 times [2018-11-28 12:42:48,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:48,325 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 46 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:48,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:48,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-28 12:42:48,392 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:48,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:48,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:42:48,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:42:48,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:42:48,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:42:48,394 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 5 states. [2018-11-28 12:42:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:48,420 INFO L93 Difference]: Finished difference Result 148 states and 171 transitions. [2018-11-28 12:42:48,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 12:42:48,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2018-11-28 12:42:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:48,421 INFO L225 Difference]: With dead ends: 148 [2018-11-28 12:42:48,421 INFO L226 Difference]: Without dead ends: 82 [2018-11-28 12:42:48,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:42:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-28 12:42:48,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-11-28 12:42:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 12:42:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2018-11-28 12:42:48,426 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 73 [2018-11-28 12:42:48,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:48,426 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2018-11-28 12:42:48,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:42:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2018-11-28 12:42:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-11-28 12:42:48,426 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:48,426 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:48,426 INFO L423 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:48,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:48,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1289345495, now seen corresponding path program 1 times [2018-11-28 12:42:48,427 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:48,427 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 47 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:48,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:48,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-28 12:42:49,577 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:49,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:49,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 12:42:49,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 12:42:49,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 12:42:49,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-11-28 12:42:49,579 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand 12 states. [2018-11-28 12:42:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:53,805 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2018-11-28 12:42:53,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 12:42:53,805 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 77 [2018-11-28 12:42:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:53,806 INFO L225 Difference]: With dead ends: 90 [2018-11-28 12:42:53,806 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 12:42:53,806 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-11-28 12:42:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 12:42:53,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 12:42:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:42:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2018-11-28 12:42:53,810 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 77 [2018-11-28 12:42:53,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:53,810 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2018-11-28 12:42:53,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 12:42:53,810 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2018-11-28 12:42:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-11-28 12:42:53,811 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:42:53,811 INFO L402 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:42:53,811 INFO L423 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:42:53,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:42:53,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1480434104, now seen corresponding path program 1 times [2018-11-28 12:42:53,811 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-28 12:42:53,811 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/cvc4 Starting monitored process 48 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-11-28 12:42:53,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:42:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:42:53,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:42:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-28 12:42:54,089 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:42:54,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:42:54,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 12:42:54,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:42:54,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:42:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:42:54,091 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand 10 states. [2018-11-28 12:42:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:42:54,314 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-11-28 12:42:54,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 12:42:54,314 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 78 [2018-11-28 12:42:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:42:54,315 INFO L225 Difference]: With dead ends: 72 [2018-11-28 12:42:54,315 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:42:54,315 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:42:54,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:42:54,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:42:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:42:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:42:54,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2018-11-28 12:42:54,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:42:54,315 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:42:54,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:42:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:42:54,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:42:54,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:42:54,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,458 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 161 [2018-11-28 12:42:54,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,607 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 136 [2018-11-28 12:42:54,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:54,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:42:56,256 WARN L180 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 157 DAG size of output: 95 [2018-11-28 12:43:06,679 WARN L180 SmtUtils]: Spent 10.42 s on a formula simplification. DAG size of input: 150 DAG size of output: 61 [2018-11-28 12:43:07,846 WARN L180 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 133 DAG size of output: 53 [2018-11-28 12:43:08,025 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2018-11-28 12:43:35,962 WARN L180 SmtUtils]: Spent 27.93 s on a formula simplification. DAG size of input: 354 DAG size of output: 224 [2018-11-28 12:44:41,763 WARN L180 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 196 DAG size of output: 138 [2018-11-28 12:44:41,766 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 24) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L48(lines 47 62) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L444 ceAbstractionStarter]: At program point L69(lines 18 71) the Hoare annotation is: (or (not (= (_ bv0 32) |base2flt_#in~m|)) (and (= (_ bv0 32) base2flt_~__retres4~0) (= base2flt_~m |base2flt_#in~m|))) [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L28(lines 27 42) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L49(lines 47 62) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L444 ceAbstractionStarter]: At program point L37-1(lines 27 42) the Hoare annotation is: (not (= (_ bv0 32) |base2flt_#in~m|)) [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 65) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L451 ceAbstractionStarter]: At program point base2fltENTRY(lines 14 72) the Hoare annotation is: true [2018-11-28 12:44:41,766 INFO L448 ceAbstractionStarter]: For program point base2fltFINAL(lines 14 72) no Hoare annotation was computed. [2018-11-28 12:44:41,766 INFO L444 ceAbstractionStarter]: At program point L63(lines 25 65) the Hoare annotation is: (not (= (_ bv0 32) |base2flt_#in~m|)) [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point base2fltEXIT(lines 14 72) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L444 ceAbstractionStarter]: At program point L47-2(lines 47 62) the Hoare annotation is: (not (= (_ bv0 32) |base2flt_#in~m|)) [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:44:41,767 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 214 345) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L444 ceAbstractionStarter]: At program point L242(line 242) the Hoare annotation is: (= (_ bv0 32) main_~zero~0) [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L242-1(line 242) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L267(lines 267 300) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L267-1(lines 238 344) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L309(lines 309 313) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L309-2(lines 309 313) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 297) no Hoare annotation was computed. [2018-11-28 12:44:41,767 INFO L448 ceAbstractionStarter]: For program point L285(lines 285 289) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L285-2(lines 285 289) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 253) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L244-2(lines 238 344) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L269(lines 269 278) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 214 345) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L444 ceAbstractionStarter]: At program point L269-2(lines 269 278) the Hoare annotation is: (let ((.cse6 (bvult main_~a~0 main_~r_add~0)) (.cse5 (= (_ bv1 32) main_~tmp___2~0)) (.cse2 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~b~0 main_~zero~0))) (.cse7 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~a~0 main_~zero~0))) (.cse3 (= (_ bv0 32) main_~zero~0)) (.cse9 (= (bvadd main_~tmp___1~0 (_ bv4294967295 32)) (_ bv0 32)))) (let ((.cse0 (= main_~tmp___1~0 (_ bv0 32))) (.cse10 (not (bvult main_~r_add~0 main_~a~0))) (.cse1 (= main_~tmp___2~0 (_ bv0 32))) (.cse11 (and .cse6 .cse5 .cse2 .cse7 .cse3 .cse9))) (let ((.cse4 (not (bvult main_~a~0 main_~b~0))) (.cse8 (= (bvadd main_~r_add~0 (_ bv1 32)) (_ bv0 32))) (.cse12 (= (bvadd main_~tmp~2 (_ bv4294967295 32)) (_ bv0 32))) (.cse13 (= (bvadd main_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse14 (= (bvadd main_~sb~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse15 (= (bvadd main_~sa~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse16 (or (and .cse0 .cse10 .cse1 .cse2 .cse7 .cse3) .cse11))) (or (and .cse0 (= main_~a~0 main_~r_add~0) .cse1 .cse2 .cse3 .cse4) (and .cse5 (or (and (= main_~b~0 main_~r_add~0) .cse6 .cse7 .cse3) (and .cse7 .cse3 .cse8 (= (bvadd main_~b~0 (_ bv1 32)) (_ bv0 32)))) .cse9) (and (or (and .cse0 .cse10 .cse1 .cse2 .cse3 .cse4) (and .cse11 .cse4) (and .cse5 .cse2 .cse7 .cse3 .cse9 .cse8)) .cse12 .cse13 .cse14 .cse15) (and (not (= (bvadd (bvlshr main_~b~0 (_ bv24 32)) (_ bv4294967041 32)) (_ bv0 32))) .cse12 .cse13 .cse14 .cse15 .cse16 (exists ((v_addflt_~ma~0_65 (_ BitVec 32))) (= main_~r_add~0 (bvor (bvand (_ bv16777215 32) v_addflt_~ma~0_65) (bvshl (bvadd (bvlshr main_~b~0 (_ bv24 32)) (_ bv1 32)) (_ bv24 32)))))) (and .cse12 .cse13 .cse14 .cse15 .cse16 (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (let ((.cse19 (bvneg (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) main_~b~0))))) (let ((.cse18 (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0)) (.cse20 (bvneg .cse19))) (let ((.cse17 (bvadd .cse18 .cse20))) (and (= (_ bv0 32) (bvand (_ bv33554432 32) .cse17)) (not (= (bvadd .cse18 .cse19 .cse20) (_ bv0 32))) (= main_~r_add~0 (bvor (bvand (_ bv16777215 32) .cse17) (bvshl (bvlshr main_~b~0 (_ bv24 32)) (_ bv24 32)))))))))))))) [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L319(lines 319 328) no Hoare annotation was computed. [2018-11-28 12:44:41,768 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 214 345) the Hoare annotation is: true [2018-11-28 12:44:41,768 INFO L448 ceAbstractionStarter]: For program point L319-2(lines 318 334) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L444 ceAbstractionStarter]: At program point L254-1(lines 254 263) the Hoare annotation is: (let ((.cse0 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~a~0 main_~zero~0))) (.cse2 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~b~0 main_~zero~0))) (.cse1 (= (_ bv0 32) main_~zero~0))) (or (and (= main_~tmp___0~0 (_ bv0 32)) (= main_~b~0 (_ bv0 32)) (= (_ bv0 32) main_~sb~0)) (and .cse0 .cse1 (= (bvadd main_~b~0 (_ bv1 32)) (_ bv0 32))) (and (not (bvugt main_~a~0 (_ bv0 32))) .cse2 (= (_ bv0 32) main_~sa~0) .cse1 (= main_~tmp~2 (_ bv0 32))) (and (= (bvadd main_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd main_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd main_~sb~0 (_ bv4294967295 32)) (_ bv0 32)) .cse2 .cse0 .cse1 (= (bvadd main_~sa~0 (_ bv4294967295 32)) (_ bv0 32))) (and (= (_ bv4294967295 32) main_~a~0) .cse2 .cse1))) [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L304(lines 304 340) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L304-1(lines 304 340) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L444 ceAbstractionStarter]: At program point L329-1(lines 316 334) the Hoare annotation is: (= (bvadd main_~tmp___9~0 (_ bv4294967295 32)) (_ bv0 32)) [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L280(lines 268 295) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L247(lines 247 251) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L444 ceAbstractionStarter]: At program point L305(lines 301 341) the Hoare annotation is: (or (= main_~a~0 main_~r_add~0) (and (= main_~b~0 main_~r_add~0) (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~b~0 main_~zero~0)) (= (_ bv0 32) main_~zero~0))) [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L272(lines 272 276) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L272-2(lines 272 276) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L322(lines 322 326) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L322-2(lines 322 326) no Hoare annotation was computed. [2018-11-28 12:44:41,769 INFO L448 ceAbstractionStarter]: For program point L306-1(lines 304 338) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L451 ceAbstractionStarter]: At program point L240(line 240) the Hoare annotation is: true [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L240-1(line 240) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L265(line 265) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L257(lines 257 261) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L257-2(lines 257 261) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L444 ceAbstractionStarter]: At program point L282-1(lines 282 291) the Hoare annotation is: (let ((.cse6 (exists ((main_~a~0 (_ BitVec 32))) (and (not (bvult main_~r_add~0 main_~a~0)) (not (bvult main_~a~0 main_~b~0))))) (.cse7 (not (bvult main_~r_add~0 main_~a~0))) (.cse9 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~a~0 main_~zero~0))) (.cse8 (exists ((main_~zero~0 (_ BitVec 32))) (bvugt main_~b~0 main_~zero~0))) (.cse10 (= (_ bv0 32) main_~zero~0))) (let ((.cse1 (and .cse6 (and .cse7 (or (and (= main_~b~0 main_~r_add~0) .cse9 .cse10) (and (= main_~a~0 main_~r_add~0) .cse8 .cse10))))) (.cse0 (= (bvadd main_~tmp___3~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (= (_ bv1 32) main_~tmp___4~0)) (.cse3 (= main_~tmp___3~0 (_ bv0 32))) (.cse4 (= main_~tmp___4~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse4) (and (= (bvadd main_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd main_~tmp___0~0 (_ bv4294967295 32)) (_ bv0 32)) (= (bvadd main_~sb~0 (_ bv4294967295 32)) (_ bv0 32)) (let ((.cse5 (and .cse6 (and .cse7 .cse8 .cse9 .cse10)))) (or (and .cse5 .cse0 .cse2) (and .cse5 .cse3 .cse4))) (= (bvadd main_~sa~0 (_ bv4294967295 32)) (_ bv0 32)))))) [2018-11-28 12:44:41,770 INFO L444 ceAbstractionStarter]: At program point L241(line 241) the Hoare annotation is: (= (_ bv0 32) main_~zero~0) [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L241-1(line 241) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L451 ceAbstractionStarter]: At program point addfltENTRY(lines 73 136) the Hoare annotation is: true [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point addfltFINAL(lines 73 136) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L116(lines 116 121) no Hoare annotation was computed. [2018-11-28 12:44:41,770 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 113) no Hoare annotation was computed. [2018-11-28 12:44:41,771 INFO L444 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (and (let ((.cse0 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~b|))) (.cse2 (exists ((addflt_~b (_ BitVec 32)) (addflt_~a (_ BitVec 32))) (and (= (bvadd addflt_~eb~0 (_ bv128 32)) (bvlshr addflt_~b (_ bv24 32))) (not (bvult addflt_~a addflt_~b)) (= (bvadd (bvlshr addflt_~a (_ bv24 32)) (_ bv4294967168 32)) addflt_~ea~0)))) (.cse1 (bvadd (bvlshr |addflt_#in~b| (_ bv24 32)) (_ bv4294967168 32)))) (or (and (= .cse0 addflt_~ma~0) (= .cse1 addflt_~ea~0) (= (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) addflt_~mb~0) (= addflt_~b |addflt_#in~a|) .cse2 (= (bvadd (bvlshr |addflt_#in~a| (_ bv24 32)) (_ bv4294967168 32)) addflt_~eb~0) (= addflt_~a |addflt_#in~b|) (bvult addflt_~b addflt_~a)) (and (not (bvult (bvor (bvand (_ bv16777215 32) addflt_~ma~0) (bvshl (bvadd addflt_~ea~0 (_ bv128 32)) (_ bv24 32))) |addflt_#in~a|)) (= addflt_~b |addflt_#in~b|) (= .cse0 addflt_~mb~0) (exists ((addflt_~a (_ BitVec 32))) (= addflt_~ma~0 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a)))) (not (bvult |addflt_#in~a| |addflt_#in~b|)) .cse2 (= addflt_~a |addflt_#in~a|) (= .cse1 addflt_~eb~0) (= (bvadd (bvlshr addflt_~a (_ bv24 32)) (_ bv4294967168 32)) addflt_~ea~0)))) (bvugt |addflt_#in~b| (_ bv0 32)) (bvugt |addflt_#in~a| (_ bv0 32))) [2018-11-28 12:44:41,771 INFO L448 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-11-28 12:44:41,772 INFO L444 ceAbstractionStarter]: At program point L133(lines 83 135) the Hoare annotation is: (let ((.cse32 (= (_ bv4294967295 32) |addflt_#in~b|)) (.cse33 (bvshl (bvadd addflt_~ea~0 (_ bv128 32)) (_ bv24 32)))) (let ((.cse0 (let ((.cse35 (bvadd addflt_~mb~0 addflt_~ma~0))) (or (not (= (bvand (_ bv33554432 32) .cse35) (_ bv0 32))) (not (bvult (bvor (bvand (_ bv16777215 32) .cse35) .cse33) |addflt_#in~a|))))) (.cse1 (let ((.cse34 (bvadd (bvlshr addflt_~mb~0 (bvadd addflt_~ea~0 (bvneg addflt_~eb~0))) addflt_~ma~0))) (or (not (bvult (bvor (bvand (_ bv16777215 32) .cse34) .cse33) |addflt_#in~a|)) (not (= (bvand (_ bv33554432 32) .cse34) (_ bv0 32)))))) (.cse3 (= (_ bv0 32) |addflt_#in~b|)) (.cse2 (not (bvult (bvor (bvand (_ bv16777215 32) addflt_~ma~0) .cse33) |addflt_#in~a|))) (.cse24 (= (_ bv0 32) |addflt_#in~a|)) (.cse21 (= addflt_~b |addflt_#in~a|)) (.cse10 (= addflt_~a |addflt_#in~a|)) (.cse27 (= addflt_~__retres10~0 |addflt_#in~a|)) (.cse22 (= addflt_~__retres10~0 |addflt_#in~b|)) (.cse12 (= addflt_~a |addflt_#in~b|)) (.cse29 (not .cse32)) (.cse4 (not (= (bvadd |addflt_#in~a| (_ bv1 32)) (_ bv0 32))))) (and (or (or (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (= (bvadd (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0) (_ bv33554431 32)) addflt_~ma~0)) (and .cse0 .cse1 .cse2)) .cse3 .cse4) (let ((.cse11 (= addflt_~b |addflt_#in~b|)) (.cse23 (bvlshr |addflt_#in~a| (_ bv24 32)))) (let ((.cse9 (bvadd .cse23 (_ bv4294967168 32))) (.cse8 (let ((.cse25 (let ((.cse26 (not (bvult addflt_~a addflt_~b)))) (or (and .cse10 .cse26) (and .cse21 .cse26))))) (or (and .cse25 .cse12) (and .cse25 .cse11))))) (let ((.cse6 (and .cse2 .cse8 (not (bvult addflt_~__retres10~0 |addflt_#in~a|)))) (.cse5 (bvlshr |addflt_#in~b| (_ bv24 32))) (.cse7 (= (bvadd addflt_~__retres10~0 (_ bv1 32)) (_ bv0 32))) (.cse20 (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) (bvadd (bvneg .cse9) addflt_~ea~0)))) (or (and (= (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~b|)) (bvadd (bvlshr addflt_~a (_ bv24 32)) (bvneg (bvadd .cse5 (_ bv4294967168 32))) (_ bv4294967168 32))) addflt_~mb~0) (or .cse6 (and .cse7 .cse8 (not (= (_ bv0 32) (bvand (_ bv33554432 32) addflt_~ma~0))))) (= .cse9 addflt_~ea~0) .cse10 .cse11) (and (= (bvadd .cse5 (_ bv4294967169 32)) addflt_~ea~0) .cse6 (exists ((v_addflt_~ma~0_65 (_ BitVec 32))) (= addflt_~__retres10~0 (bvor (bvand (_ bv16777215 32) v_addflt_~ma~0_65) (bvshl (bvadd (bvlshr |addflt_#in~b| (_ bv24 32)) (_ bv1 32)) (_ bv24 32))))) (not (= (bvadd .cse5 (_ bv4294967041 32)) (_ bv0 32))) .cse12) (and .cse0 .cse1 (exists ((addflt_~a (_ BitVec 32))) (let ((.cse14 (bvlshr addflt_~a (_ bv24 32)))) (let ((.cse15 (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) (bvadd (bvneg (bvadd (bvlshr |addflt_#in~a| (_ bv24 32)) (_ bv4294967168 32))) .cse14 (_ bv4294967168 32))))) (let ((.cse13 (bvadd (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a)) (bvneg (bvneg .cse15))))) (and (= addflt_~__retres10~0 (bvor (bvand (_ bv16777215 32) .cse13) (bvshl .cse14 (_ bv24 32)))) (= (bvand (_ bv33554432 32) .cse13) (_ bv0 32)) (bvult |addflt_#in~a| addflt_~a) (not (= .cse15 (_ bv0 32)))))))) .cse2 (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (let ((.cse16 (bvneg (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~b|))))) (let ((.cse18 (bvneg .cse16)) (.cse17 (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0))) (let ((.cse19 (bvadd .cse18 .cse17))) (and (not (= (bvadd .cse16 .cse17 .cse18) (_ bv0 32))) (= addflt_~__retres10~0 (bvor (bvand (_ bv16777215 32) .cse19) (bvshl (bvlshr |addflt_#in~b| (_ bv24 32)) (_ bv24 32)))) (= (_ bv0 32) (bvand (_ bv33554432 32) .cse19))))))) .cse8) (and (and .cse10 .cse11) .cse3) (and (exists ((addflt_~a (_ BitVec 32))) (and (= addflt_~ma~0 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a))) (bvult |addflt_#in~a| addflt_~a) (= (bvadd (bvlshr addflt_~a (_ bv24 32)) (_ bv4294967168 32)) addflt_~ea~0))) (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32)) (addflt_~a (_ BitVec 32))) (= (bvlshr (bvadd (bvneg (bvneg (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0))) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a))) (_ bv1 32)) addflt_~ma~0)) (= .cse20 addflt_~mb~0) .cse21 .cse22 .cse12 (bvult addflt_~b addflt_~a)) (and (exists ((addflt_~ma~0 (_ BitVec 32))) (= addflt_~__retres10~0 (bvor addflt_~ma~0 (bvshl (bvadd (bvlshr |addflt_#in~a| (_ bv24 32)) (_ bv1 32)) (_ bv24 32))))) (not (= (bvadd .cse23 (_ bv4294967041 32)) (_ bv0 32))) (= (bvadd .cse23 (_ bv4294967169 32)) addflt_~ea~0) .cse10 .cse8 .cse11) (and .cse24 .cse21) (and (exists ((addflt_~a (_ BitVec 32))) (and (= (bvadd (bvneg (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) (bvadd (bvneg (bvadd (bvlshr |addflt_#in~a| (_ bv24 32)) (_ bv4294967168 32))) addflt_~ea~0))) addflt_~ma~0) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a))) (bvult |addflt_#in~a| addflt_~a) (= (bvadd (bvlshr addflt_~a (_ bv24 32)) (_ bv4294967168 32)) addflt_~ea~0))) .cse7 (not (= (_ bv0 32) .cse20)) .cse8 (bvult |addflt_#in~a| addflt_~a)))))) (or (bvugt |addflt_#in~b| (_ bv0 32)) .cse27) (let ((.cse28 (and .cse32 (= (bvadd addflt_~a (_ bv1 32)) (_ bv0 32))))) (or (and .cse24 .cse28) .cse29 (let ((.cse30 (and .cse28 .cse21))) (or (and (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (= (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0) addflt_~mb~0)) (= (bvadd addflt_~ma~0 (_ bv4261412865 32)) (_ bv0 32)) .cse30) (and .cse30 (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (let ((.cse31 (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0))) (and (not (= .cse31 (_ bv0 32))) (= (_ bv33554431 32) (bvadd (bvneg .cse31) addflt_~ma~0)))))))))) (or (bvugt |addflt_#in~a| (_ bv0 32)) (and .cse10 .cse27) (and .cse22 .cse12)) (or (and (= (bvadd addflt_~ma~0 (_ bv4227858434 32)) (_ bv0 32)) (= (_ bv127 32) addflt_~eb~0)) .cse29 .cse4)))) [2018-11-28 12:44:41,772 INFO L448 ceAbstractionStarter]: For program point addfltEXIT(lines 73 136) no Hoare annotation was computed. [2018-11-28 12:44:41,772 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 90) no Hoare annotation was computed. [2018-11-28 12:44:41,772 INFO L448 ceAbstractionStarter]: For program point L115(lines 115 126) no Hoare annotation was computed. [2018-11-28 12:44:41,772 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 83 135) no Hoare annotation was computed. [2018-11-28 12:44:41,772 INFO L444 ceAbstractionStarter]: At program point L115-2(lines 115 126) the Hoare annotation is: (and (let ((.cse7 (bvlshr |addflt_#in~b| (_ bv24 32))) (.cse10 (= addflt_~b |addflt_#in~b|)) (.cse8 (= addflt_~a |addflt_#in~b|)) (.cse6 (= addflt_~a |addflt_#in~a|))) (let ((.cse1 (let ((.cse15 (let ((.cse17 (not (bvult addflt_~a addflt_~b)))) (or (and .cse6 .cse17) (and (= addflt_~b |addflt_#in~a|) .cse17))))) (or (and (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32)) (addflt_~a (_ BitVec 32))) (= (bvadd (bvneg (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0)) addflt_~ma~0) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a)))) (let ((.cse16 (= (_ bv0 32) (bvand (_ bv33554432 32) addflt_~ma~0)))) (or (and .cse15 .cse16 .cse8) (and .cse15 .cse16 .cse10)))) (and (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32)) (addflt_~a (_ BitVec 32))) (= (bvlshr (bvadd (bvneg (bvneg (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0))) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a))) (_ bv1 32)) addflt_~ma~0)) (or (and .cse15 .cse10) (and .cse15 .cse8)))))) (.cse5 (bvlshr |addflt_#in~a| (_ bv24 32))) (.cse3 (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~b|))) (.cse0 (bvadd .cse7 (_ bv4294967168 32)))) (let ((.cse4 (= (bvlshr .cse3 (bvadd (bvlshr addflt_~a (_ bv24 32)) (bvneg .cse0) (_ bv4294967168 32))) addflt_~mb~0)) (.cse2 (bvadd .cse5 (_ bv4294967168 32))) (.cse9 (let ((.cse12 (bvshl (bvadd addflt_~ea~0 (_ bv128 32)) (_ bv24 32)))) (let ((.cse14 (not (bvult (bvor (bvand (_ bv16777215 32) addflt_~ma~0) .cse12) |addflt_#in~a|)))) (or (and (let ((.cse11 (bvadd addflt_~mb~0 addflt_~ma~0))) (or (not (= (bvand (_ bv33554432 32) .cse11) (_ bv0 32))) (not (bvult (bvor (bvand (_ bv16777215 32) .cse11) .cse12) |addflt_#in~a|)))) (let ((.cse13 (bvadd (bvlshr addflt_~mb~0 (bvadd addflt_~ea~0 (bvneg addflt_~eb~0))) addflt_~ma~0))) (or (not (bvult (bvor (bvand (_ bv16777215 32) .cse13) .cse12) |addflt_#in~a|)) (not (= (bvand (_ bv33554432 32) .cse13) (_ bv0 32))))) .cse14 .cse1) (and .cse6 .cse14 .cse1)))))) (or (and (= .cse0 addflt_~ea~0) .cse1 (exists ((addflt_~a (_ BitVec 32))) (and (= (bvadd (bvneg (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) (bvadd (bvneg (bvadd (bvlshr |addflt_#in~a| (_ bv24 32)) (_ bv4294967168 32))) addflt_~ea~0))) addflt_~ma~0) (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~a))) (bvult |addflt_#in~a| addflt_~a) (= (bvadd (bvlshr addflt_~a (_ bv24 32)) (_ bv4294967168 32)) addflt_~ea~0))) (not (= (_ bv0 32) (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~a|)) (bvadd (bvneg .cse2) addflt_~ea~0)))) (exists ((addflt_~delta~0 (_ BitVec 32)) (addflt_~b (_ BitVec 32))) (= (bvlshr (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) addflt_~b)) addflt_~delta~0) (bvadd (bvneg (bvor (_ bv16777216 32) (bvand (_ bv16777215 32) |addflt_#in~b|))) addflt_~ma~0))) (not (= (_ bv0 32) (bvadd (bvneg .cse3) addflt_~ma~0)))) (and .cse4 (not (= (bvadd .cse5 (_ bv4294967041 32)) (_ bv0 32))) (= (bvadd .cse5 (_ bv4294967169 32)) addflt_~ea~0) .cse6 .cse1) (and (= (bvadd .cse7 (_ bv4294967169 32)) addflt_~ea~0) (not (= (bvadd .cse7 (_ bv4294967041 32)) (_ bv0 32))) .cse8 .cse9) (and .cse4 (= .cse2 addflt_~ea~0) .cse6 .cse10 .cse9))))) (bvugt |addflt_#in~b| (_ bv0 32)) (bvugt |addflt_#in~a| (_ bv0 32)) (not (= (bvadd |addflt_#in~a| (_ bv1 32)) (_ bv0 32)))) [2018-11-28 12:44:41,772 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2018-11-28 12:44:41,772 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2018-11-28 12:44:41,773 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2018-11-28 12:44:41,773 INFO L448 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-28 12:44:41,773 INFO L448 ceAbstractionStarter]: For program point L6(lines 6 8) no Hoare annotation was computed. [2018-11-28 12:44:41,773 INFO L448 ceAbstractionStarter]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2018-11-28 12:44:41,784 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] [2018-11-28 12:44:41,785 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] [2018-11-28 12:44:41,791 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,791 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,792 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] [2018-11-28 12:44:41,792 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,792 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,792 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,793 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,794 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,794 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,794 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,794 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,795 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,795 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,795 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,795 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,796 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,796 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,796 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,796 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,797 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] [2018-11-28 12:44:41,797 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,797 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,797 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,798 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,803 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,804 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,804 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] [2018-11-28 12:44:41,804 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,804 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,805 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,805 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,805 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,805 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,806 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,807 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,808 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] [2018-11-28 12:44:41,809 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,809 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,809 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,809 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:44:41 BoogieIcfgContainer [2018-11-28 12:44:41,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:44:41,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:44:41,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:44:41,817 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:44:41,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:41:14" (3/4) ... [2018-11-28 12:44:41,821 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:44:41,826 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:44:41,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2018-11-28 12:44:41,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:44:41,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addflt [2018-11-28 12:44:41,827 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:44:41,832 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 12:44:41,832 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 12:44:41,832 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:44:41,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(0bv32 == \old(m)) || (0bv32 == __retres4 && m == \old(m)) [2018-11-28 12:44:41,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(0bv32 == \old(m)) [2018-11-28 12:44:41,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(0bv32 == \old(m)) [2018-11-28 12:44:41,853 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(0bv32 == \old(m)) [2018-11-28 12:44:41,854 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: a == r_add || ((b == r_add && (\exists main_~zero~0 : bv32 :: ~bvugt32(b, main_~zero~0))) && 0bv32 == zero) [2018-11-28 12:44:41,855 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0), 33554431bv32) == ma) || (((!(~bvand64(33554432bv32, ~bvadd64(mb, ma)) == 0bv32) || !~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(mb, ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) || !(~bvand64(33554432bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)) == 0bv32))) && !~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)))) || 0bv32 == \old(b)) || !(~bvadd64(\old(a), 1bv32) == 0bv32)) && (((((((((((~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))), ~bvadd64(~bvlshr64(a, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967168bv32)), 4294967168bv32)) == mb && (((!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !~bvult64(__retres10, \old(a))) || ((~bvadd64(__retres10, 1bv32) == 0bv32 && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !(0bv32 == ~bvand64(33554432bv32, ma))))) && ~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32) == ea) && a == \old(a)) && b == \old(b)) || ((((~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967169bv32) == ea && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !~bvult64(__retres10, \old(a))) && (\exists v_addflt_~ma~0_65 : bv32 :: __retres10 == ~bvor32(~bvand64(16777215bv32, v_addflt_~ma~0_65), ~bvshl32(~bvadd64(~bvlshr64(\old(b), 24bv32), 1bv32), 24bv32)))) && !(~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967041bv32) == 0bv32)) && a == \old(b))) || ((((((!(~bvand64(33554432bv32, ~bvadd64(mb, ma)) == 0bv32) || !~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(mb, ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) || !(~bvand64(33554432bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)) == 0bv32))) && (\exists addflt_~a : bv32 :: ((__retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)), ~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)))))), ~bvshl32(~bvlshr64(addflt_~a, 24bv32), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)), ~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)))))) == 0bv32) && ~bvult64(\old(a), addflt_~a)) && !(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)) == 0bv32))) && !~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: (!(~bvadd64(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b)))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0), ~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b)))))) == 0bv32) && __retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))), ~bvshl32(~bvlshr64(\old(b), 24bv32), 24bv32))) && 0bv32 == ~bvand64(33554432bv32, ~bvadd64(~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))))) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b))))) || ((a == \old(a) && b == \old(b)) && 0bv32 == \old(b))) || (((((((\exists addflt_~a : bv32 :: (ma == ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)) && ~bvult64(\old(a), addflt_~a)) && ~bvadd64(~bvlshr64(addflt_~a, 24bv32), 4294967168bv32) == ea) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32, addflt_~a : bv32 :: ~bvlshr64(~bvadd64(~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))), ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a))), 1bv32) == ma)) && ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea)) == mb) && b == \old(a)) && __retres10 == \old(b)) && a == \old(b)) && ~bvult64(b, a))) || ((((((\exists addflt_~ma~0 : bv32 :: __retres10 == ~bvor32(addflt_~ma~0, ~bvshl32(~bvadd64(~bvlshr64(\old(a), 24bv32), 1bv32), 24bv32))) && !(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967041bv32) == 0bv32)) && ~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967169bv32) == ea) && a == \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && b == \old(b))) || (0bv32 == \old(a) && b == \old(a))) || (((((\exists addflt_~a : bv32 :: (~bvadd64(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea))), ma) == ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)) && ~bvult64(\old(a), addflt_~a)) && ~bvadd64(~bvlshr64(addflt_~a, 24bv32), 4294967168bv32) == ea) && ~bvadd64(__retres10, 1bv32) == 0bv32) && !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea)))) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && ~bvult64(\old(a), a)))) && (~bvugt32(\old(b), 0bv32) || __retres10 == \old(a))) && (((0bv32 == \old(a) && 4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) || !(4294967295bv32 == \old(b))) || (((\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0) == mb) && ~bvadd64(ma, 4261412865bv32) == 0bv32) && (4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) && b == \old(a)) || (((4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) && b == \old(a)) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: !(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0) == 0bv32) && 33554431bv32 == ~bvadd64(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0)), ma))))) && ((~bvugt32(\old(a), 0bv32) || (a == \old(a) && __retres10 == \old(a))) || (__retres10 == \old(b) && a == \old(b)))) && (((~bvadd64(ma, 4227858434bv32) == 0bv32 && 127bv32 == eb) || !(4294967295bv32 == \old(b))) || !(~bvadd64(\old(a), 1bv32) == 0bv32)) [2018-11-28 12:44:41,878 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_04e065cc-6c42-4164-ab3f-e64f6043883b/bin-2019/uautomizer/witness.graphml [2018-11-28 12:44:41,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:44:41,879 INFO L168 Benchmark]: Toolchain (without parser) took 207609.78 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 297.8 MB). Free memory was 942.0 MB in the beginning and 989.7 MB in the end (delta: -47.7 MB). Peak memory consumption was 250.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,879 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:41,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.70 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,880 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.95 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:41,880 INFO L168 Benchmark]: Boogie Preprocessor took 81.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 925.9 MB in the beginning and 1.2 GB in the end (delta: -246.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,880 INFO L168 Benchmark]: RCFGBuilder took 323.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,880 INFO L168 Benchmark]: TraceAbstraction took 206911.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 998.3 MB in the end (delta: 150.1 MB). Peak memory consumption was 428.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,881 INFO L168 Benchmark]: Witness Printer took 61.68 ms. Allocated memory is still 1.3 GB. Free memory was 998.3 MB in the beginning and 989.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:41,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.70 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.95 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.0 MB). Free memory was 925.9 MB in the beginning and 1.2 GB in the end (delta: -246.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 323.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 206911.90 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 113.8 MB). Free memory was 1.1 GB in the beginning and 998.3 MB in the end (delta: 150.1 MB). Peak memory consumption was 428.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.68 ms. Allocated memory is still 1.3 GB. Free memory was 998.3 MB in the beginning and 989.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 25]: Loop Invariant Derived loop invariant: !(0bv32 == \old(m)) - InvariantResult [Line: 301]: Loop Invariant [2018-11-28 12:44:41,886 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] [2018-11-28 12:44:41,886 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~zero~0,QUANTIFIED] Derived loop invariant: a == r_add || ((b == r_add && (\exists main_~zero~0 : bv32 :: ~bvugt32(b, main_~zero~0))) && 0bv32 == zero) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: !(0bv32 == \old(m)) || (0bv32 == __retres4 && m == \old(m)) - InvariantResult [Line: 83]: Loop Invariant [2018-11-28 12:44:41,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] [2018-11-28 12:44:41,887 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,891 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,891 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,891 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,891 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] [2018-11-28 12:44:41,891 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,892 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,895 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,895 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_addflt_~ma~0_65,QUANTIFIED] [2018-11-28 12:44:41,895 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,895 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,896 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,896 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,896 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,896 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,896 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,897 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,898 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,898 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,898 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,898 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,898 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,899 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,899 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~ma~0,QUANTIFIED] [2018-11-28 12:44:41,899 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,899 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,899 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~a,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~b,QUANTIFIED] [2018-11-28 12:44:41,900 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[addflt_~delta~0,QUANTIFIED] Derived loop invariant: ((((((((\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: ~bvadd64(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0), 33554431bv32) == ma) || (((!(~bvand64(33554432bv32, ~bvadd64(mb, ma)) == 0bv32) || !~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(mb, ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) || !(~bvand64(33554432bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)) == 0bv32))) && !~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)))) || 0bv32 == \old(b)) || !(~bvadd64(\old(a), 1bv32) == 0bv32)) && (((((((((((~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))), ~bvadd64(~bvlshr64(a, 24bv32), ~bvneg32(~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967168bv32)), 4294967168bv32)) == mb && (((!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !~bvult64(__retres10, \old(a))) || ((~bvadd64(__retres10, 1bv32) == 0bv32 && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !(0bv32 == ~bvand64(33554432bv32, ma))))) && ~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32) == ea) && a == \old(a)) && b == \old(b)) || ((((~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967169bv32) == ea && (!~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && !~bvult64(__retres10, \old(a))) && (\exists v_addflt_~ma~0_65 : bv32 :: __retres10 == ~bvor32(~bvand64(16777215bv32, v_addflt_~ma~0_65), ~bvshl32(~bvadd64(~bvlshr64(\old(b), 24bv32), 1bv32), 24bv32)))) && !(~bvadd64(~bvlshr64(\old(b), 24bv32), 4294967041bv32) == 0bv32)) && a == \old(b))) || ((((((!(~bvand64(33554432bv32, ~bvadd64(mb, ma)) == 0bv32) || !~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(mb, ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (!~bvult64(~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a)) || !(~bvand64(33554432bv32, ~bvadd64(~bvlshr64(mb, ~bvadd64(ea, ~bvneg32(eb))), ma)) == 0bv32))) && (\exists addflt_~a : bv32 :: ((__retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)), ~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)))))), ~bvshl32(~bvlshr64(addflt_~a, 24bv32), 24bv32)) && ~bvand64(33554432bv32, ~bvadd64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)), ~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)))))) == 0bv32) && ~bvult64(\old(a), addflt_~a)) && !(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ~bvlshr64(addflt_~a, 24bv32), 4294967168bv32)) == 0bv32))) && !~bvult64(~bvor32(~bvand64(16777215bv32, ma), ~bvshl32(~bvadd64(ea, 128bv32), 24bv32)), \old(a))) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: (!(~bvadd64(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b)))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0), ~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b)))))) == 0bv32) && __retres10 == ~bvor32(~bvand64(16777215bv32, ~bvadd64(~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))), ~bvshl32(~bvlshr64(\old(b), 24bv32), 24bv32))) && 0bv32 == ~bvand64(33554432bv32, ~bvadd64(~bvneg32(~bvneg32(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(b))))), ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))))) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b))))) || ((a == \old(a) && b == \old(b)) && 0bv32 == \old(b))) || (((((((\exists addflt_~a : bv32 :: (ma == ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)) && ~bvult64(\old(a), addflt_~a)) && ~bvadd64(~bvlshr64(addflt_~a, 24bv32), 4294967168bv32) == ea) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32, addflt_~a : bv32 :: ~bvlshr64(~bvadd64(~bvneg32(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0))), ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a))), 1bv32) == ma)) && ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea)) == mb) && b == \old(a)) && __retres10 == \old(b)) && a == \old(b)) && ~bvult64(b, a))) || ((((((\exists addflt_~ma~0 : bv32 :: __retres10 == ~bvor32(addflt_~ma~0, ~bvshl32(~bvadd64(~bvlshr64(\old(a), 24bv32), 1bv32), 24bv32))) && !(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967041bv32) == 0bv32)) && ~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967169bv32) == ea) && a == \old(a)) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && b == \old(b))) || (0bv32 == \old(a) && b == \old(a))) || (((((\exists addflt_~a : bv32 :: (~bvadd64(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea))), ma) == ~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~a)) && ~bvult64(\old(a), addflt_~a)) && ~bvadd64(~bvlshr64(addflt_~a, 24bv32), 4294967168bv32) == ea) && ~bvadd64(__retres10, 1bv32) == 0bv32) && !(0bv32 == ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, \old(a))), ~bvadd64(~bvneg32(~bvadd64(~bvlshr64(\old(a), 24bv32), 4294967168bv32)), ea)))) && ((((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && a == \old(b)) || (((a == \old(a) && !~bvult64(a, b)) || (b == \old(a) && !~bvult64(a, b))) && b == \old(b)))) && ~bvult64(\old(a), a)))) && (~bvugt32(\old(b), 0bv32) || __retres10 == \old(a))) && (((0bv32 == \old(a) && 4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) || !(4294967295bv32 == \old(b))) || (((\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: ~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0) == mb) && ~bvadd64(ma, 4261412865bv32) == 0bv32) && (4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) && b == \old(a)) || (((4294967295bv32 == \old(b) && ~bvadd64(a, 1bv32) == 0bv32) && b == \old(a)) && (\exists addflt_~delta~0 : bv32, addflt_~b : bv32 :: !(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0) == 0bv32) && 33554431bv32 == ~bvadd64(~bvneg32(~bvlshr64(~bvor32(16777216bv32, ~bvand64(16777215bv32, addflt_~b)), addflt_~delta~0)), ma))))) && ((~bvugt32(\old(a), 0bv32) || (a == \old(a) && __retres10 == \old(a))) || (__retres10 == \old(b) && a == \old(b)))) && (((~bvadd64(ma, 4227858434bv32) == 0bv32 && 127bv32 == eb) || !(4294967295bv32 == \old(b))) || !(~bvadd64(\old(a), 1bv32) == 0bv32)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: !(0bv32 == \old(m)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: !(0bv32 == \old(m)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. SAFE Result, 206.8s OverallTime, 44 OverallIterations, 4 TraceHistogramMax, 76.2s AutomataDifference, 0.0s DeadEndRemovalTime, 107.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 4869 SDtfs, 2243 SDslu, 27058 SDs, 0 SdLazy, 6732 SolverSat, 353 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 41.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3270 GetRequests, 2802 SyntacticMatches, 16 SemanticMatches, 452 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 50.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=477occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 44 MinimizatonAttempts, 1409 StatesRemovedByMinimization, 39 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 483 PreInvPairs, 601 NumberOfFragments, 3040 HoareAnnotationTreeSize, 483 FomulaSimplifications, 3120988 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 132475 FormulaSimplificationTreeSizeReductionInter, 106.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 2686 NumberOfCodeBlocks, 2668 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 3035 ConstructedInterpolants, 91 QuantifiedInterpolants, 530755 SizeOfPredicates, 230 NumberOfNonLiveVariables, 4607 ConjunctsInSsa, 410 ConjunctsInUnsatCore, 55 InterpolantComputations, 34 PerfectInterpolantSequences, 1018/1099 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...