./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e04f2515dd5c7ce697460622800d33932bf1903 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e04f2515dd5c7ce697460622800d33932bf1903 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:13:30,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:13:30,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:13:30,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:13:30,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:13:30,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:13:30,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:13:30,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:13:30,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:13:30,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:13:30,217 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:13:30,218 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:13:30,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:13:30,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:13:30,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:13:30,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:13:30,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:13:30,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:13:30,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:13:30,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:13:30,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:13:30,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:13:30,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:13:30,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:13:30,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:13:30,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:13:30,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:13:30,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:13:30,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:13:30,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:13:30,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:13:30,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:13:30,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:13:30,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:13:30,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:13:30,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:13:30,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:13:30,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:13:30,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:13:30,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:13:30,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:13:30,242 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:13:30,255 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:13:30,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:13:30,256 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:13:30,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:13:30,256 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:13:30,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:13:30,257 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:13:30,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:13:30,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:13:30,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:13:30,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:13:30,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:13:30,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:13:30,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:13:30,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:13:30,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:13:30,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:13:30,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:13:30,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:13:30,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:13:30,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:13:30,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:13:30,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:13:30,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-11-15 23:13:30,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:13:30,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:13:30,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:13:30,299 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:13:30,299 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:13:30,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-15 23:13:30,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/0cdf65f06/f2b72e508231413bb22faac194130d1d/FLAGef33b2666 [2019-11-15 23:13:30,755 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:13:30,755 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-15 23:13:30,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/0cdf65f06/f2b72e508231413bb22faac194130d1d/FLAGef33b2666 [2019-11-15 23:13:31,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/0cdf65f06/f2b72e508231413bb22faac194130d1d [2019-11-15 23:13:31,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:13:31,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:13:31,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:13:31,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:13:31,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:13:31,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e8593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31, skipping insertion in model container [2019-11-15 23:13:31,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,157 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:13:31,191 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:13:31,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:13:31,534 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:13:31,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:13:31,585 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:13:31,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31 WrapperNode [2019-11-15 23:13:31,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:13:31,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:13:31,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:13:31,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:13:31,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:13:31,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:13:31,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:13:31,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:13:31,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... [2019-11-15 23:13:31,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:13:31,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:13:31,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:13:31,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:13:31,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:13:31,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:13:31,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:13:32,248 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:13:32,249 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-15 23:13:32,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:32 BoogieIcfgContainer [2019-11-15 23:13:32,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:13:32,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:13:32,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:13:32,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:13:32,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:13:31" (1/3) ... [2019-11-15 23:13:32,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258e5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:13:32, skipping insertion in model container [2019-11-15 23:13:32,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:31" (2/3) ... [2019-11-15 23:13:32,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258e5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:13:32, skipping insertion in model container [2019-11-15 23:13:32,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:32" (3/3) ... [2019-11-15 23:13:32,258 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-11-15 23:13:32,267 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:13:32,274 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 23:13:32,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 23:13:32,303 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:13:32,303 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:13:32,304 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:13:32,304 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:13:32,304 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:13:32,304 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:13:32,304 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:13:32,305 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:13:32,321 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-15 23:13:32,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:13:32,328 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:32,329 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:32,331 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:32,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:32,335 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-11-15 23:13:32,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:32,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404991773] [2019-11-15 23:13:32,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:32,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:32,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:32,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404991773] [2019-11-15 23:13:32,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:32,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:13:32,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644763895] [2019-11-15 23:13:32,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:13:32,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:32,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:13:32,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:13:32,679 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 8 states. [2019-11-15 23:13:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:34,324 INFO L93 Difference]: Finished difference Result 454 states and 688 transitions. [2019-11-15 23:13:34,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 23:13:34,326 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-11-15 23:13:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:34,346 INFO L225 Difference]: With dead ends: 454 [2019-11-15 23:13:34,347 INFO L226 Difference]: Without dead ends: 337 [2019-11-15 23:13:34,355 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:13:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-11-15 23:13:34,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 133. [2019-11-15 23:13:34,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-15 23:13:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2019-11-15 23:13:34,444 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 17 [2019-11-15 23:13:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:34,445 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2019-11-15 23:13:34,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:13:34,445 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2019-11-15 23:13:34,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:13:34,446 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:34,446 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:34,446 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:34,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:34,447 INFO L82 PathProgramCache]: Analyzing trace with hash 934676335, now seen corresponding path program 1 times [2019-11-15 23:13:34,447 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:34,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445413851] [2019-11-15 23:13:34,447 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:34,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:34,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:34,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:34,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445413851] [2019-11-15 23:13:34,659 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:34,659 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 23:13:34,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735981438] [2019-11-15 23:13:34,660 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:13:34,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:34,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:13:34,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:13:34,661 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 7 states. [2019-11-15 23:13:34,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:34,923 INFO L93 Difference]: Finished difference Result 288 states and 410 transitions. [2019-11-15 23:13:34,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-15 23:13:34,924 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 23:13:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:34,926 INFO L225 Difference]: With dead ends: 288 [2019-11-15 23:13:34,926 INFO L226 Difference]: Without dead ends: 204 [2019-11-15 23:13:34,927 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:13:34,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2019-11-15 23:13:34,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 193. [2019-11-15 23:13:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-15 23:13:34,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 274 transitions. [2019-11-15 23:13:34,959 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 274 transitions. Word has length 17 [2019-11-15 23:13:34,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:34,960 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 274 transitions. [2019-11-15 23:13:34,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:13:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 274 transitions. [2019-11-15 23:13:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 23:13:34,962 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:34,962 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:34,963 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:34,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:34,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1341099622, now seen corresponding path program 1 times [2019-11-15 23:13:34,964 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:34,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256568375] [2019-11-15 23:13:34,964 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:34,965 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:34,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:35,206 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256568375] [2019-11-15 23:13:35,206 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:35,206 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:13:35,207 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388812018] [2019-11-15 23:13:35,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:13:35,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:35,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:13:35,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:13:35,208 INFO L87 Difference]: Start difference. First operand 193 states and 274 transitions. Second operand 8 states. [2019-11-15 23:13:35,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:35,712 INFO L93 Difference]: Finished difference Result 304 states and 404 transitions. [2019-11-15 23:13:35,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-15 23:13:35,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-11-15 23:13:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:35,716 INFO L225 Difference]: With dead ends: 304 [2019-11-15 23:13:35,716 INFO L226 Difference]: Without dead ends: 256 [2019-11-15 23:13:35,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:13:35,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2019-11-15 23:13:35,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 182. [2019-11-15 23:13:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-15 23:13:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 256 transitions. [2019-11-15 23:13:35,733 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 256 transitions. Word has length 21 [2019-11-15 23:13:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:35,734 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 256 transitions. [2019-11-15 23:13:35,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:13:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 256 transitions. [2019-11-15 23:13:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:13:35,736 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:35,736 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:35,737 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:35,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1901024439, now seen corresponding path program 1 times [2019-11-15 23:13:35,737 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:35,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519651431] [2019-11-15 23:13:35,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:35,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:35,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:35,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519651431] [2019-11-15 23:13:35,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:35,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:13:35,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981748461] [2019-11-15 23:13:35,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:13:35,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:35,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:13:35,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:13:35,793 INFO L87 Difference]: Start difference. First operand 182 states and 256 transitions. Second operand 3 states. [2019-11-15 23:13:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:35,817 INFO L93 Difference]: Finished difference Result 336 states and 472 transitions. [2019-11-15 23:13:35,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:13:35,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-15 23:13:35,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:35,819 INFO L225 Difference]: With dead ends: 336 [2019-11-15 23:13:35,820 INFO L226 Difference]: Without dead ends: 261 [2019-11-15 23:13:35,820 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:13:35,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-11-15 23:13:35,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 232. [2019-11-15 23:13:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-11-15 23:13:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 321 transitions. [2019-11-15 23:13:35,836 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 321 transitions. Word has length 25 [2019-11-15 23:13:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:35,836 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 321 transitions. [2019-11-15 23:13:35,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:13:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 321 transitions. [2019-11-15 23:13:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:13:35,838 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:35,838 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:35,838 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:35,839 INFO L82 PathProgramCache]: Analyzing trace with hash 186737553, now seen corresponding path program 1 times [2019-11-15 23:13:35,839 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:35,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485707318] [2019-11-15 23:13:35,839 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:35,840 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:35,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:35,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:35,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485707318] [2019-11-15 23:13:35,950 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:35,951 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:13:35,951 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167473918] [2019-11-15 23:13:35,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:13:35,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:35,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:13:35,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:35,952 INFO L87 Difference]: Start difference. First operand 232 states and 321 transitions. Second operand 6 states. [2019-11-15 23:13:36,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:36,142 INFO L93 Difference]: Finished difference Result 358 states and 490 transitions. [2019-11-15 23:13:36,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:13:36,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-15 23:13:36,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:36,144 INFO L225 Difference]: With dead ends: 358 [2019-11-15 23:13:36,144 INFO L226 Difference]: Without dead ends: 193 [2019-11-15 23:13:36,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:13:36,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-15 23:13:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 182. [2019-11-15 23:13:36,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-11-15 23:13:36,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 248 transitions. [2019-11-15 23:13:36,160 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 248 transitions. Word has length 25 [2019-11-15 23:13:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:36,160 INFO L462 AbstractCegarLoop]: Abstraction has 182 states and 248 transitions. [2019-11-15 23:13:36,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:13:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 248 transitions. [2019-11-15 23:13:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:13:36,165 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:36,165 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:36,166 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-11-15 23:13:36,167 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:36,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784859149] [2019-11-15 23:13:36,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:36,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:36,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:36,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:36,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784859149] [2019-11-15 23:13:36,232 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:36,232 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:13:36,232 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342260864] [2019-11-15 23:13:36,232 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:13:36,232 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:13:36,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:13:36,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:13:36,233 INFO L87 Difference]: Start difference. First operand 182 states and 248 transitions. Second operand 5 states. [2019-11-15 23:13:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:36,310 INFO L93 Difference]: Finished difference Result 313 states and 430 transitions. [2019-11-15 23:13:36,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:13:36,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-15 23:13:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:36,313 INFO L225 Difference]: With dead ends: 313 [2019-11-15 23:13:36,314 INFO L226 Difference]: Without dead ends: 238 [2019-11-15 23:13:36,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:36,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-11-15 23:13:36,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 190. [2019-11-15 23:13:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-15 23:13:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 252 transitions. [2019-11-15 23:13:36,329 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 252 transitions. Word has length 29 [2019-11-15 23:13:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:36,330 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 252 transitions. [2019-11-15 23:13:36,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:13:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 252 transitions. [2019-11-15 23:13:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:13:36,333 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:36,333 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:36,333 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:36,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-11-15 23:13:36,341 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:13:36,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784204921] [2019-11-15 23:13:36,341 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:36,342 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:13:36,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:13:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:13:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:13:36,464 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:13:36,465 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:13:36,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:13:36 BoogieIcfgContainer [2019-11-15 23:13:36,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:13:36,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:13:36,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:13:36,493 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:13:36,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:32" (3/4) ... [2019-11-15 23:13:36,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:13:36,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:13:36,499 INFO L168 Benchmark]: Toolchain (without parser) took 5356.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -62.4 MB). Peak memory consumption was 44.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:36,499 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:13:36,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:36,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.80 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. [2019-11-15 23:13:36,501 INFO L168 Benchmark]: Boogie Preprocessor took 60.05 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. [2019-11-15 23:13:36,501 INFO L168 Benchmark]: RCFGBuilder took 542.34 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:36,502 INFO L168 Benchmark]: TraceAbstraction took 4241.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:36,502 INFO L168 Benchmark]: Witness Printer took 4.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:13:36,505 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 443.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.80 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. * Boogie Preprocessor took 60.05 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 542.34 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4241.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [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 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [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) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 4.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 680 SDtfs, 2059 SDslu, 2424 SDs, 0 SdLazy, 601 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 377 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 12000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 23:13:38,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:13:38,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:13:38,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-15 23:13:38,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:13:38,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:13:38,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:13:38,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:13:38,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:13:38,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:13:38,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:13:38,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:13:38,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:13:38,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:13:38,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:13:38,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:13:38,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:13:38,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:13:38,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:13:38,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:13:38,634 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:13:38,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:13:38,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:13:38,636 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:13:38,636 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:13:38,636 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:13:38,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:13:38,637 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:13:38,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:13:38,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:13:38,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:13:38,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:13:38,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:13:38,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:13:38,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:13:38,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:13:38,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:13:38,638 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:13:38,639 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:13:38,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:13:38,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:13:38,639 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-11-15 23:13:38,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:13:38,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:13:38,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:13:38,683 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:13:38,683 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:13:38,684 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-15 23:13:38,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/18a5f8e67/434cb753a872466a80d881b426db633d/FLAG7d7163bb5 [2019-11-15 23:13:39,144 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:13:39,149 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-15 23:13:39,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/18a5f8e67/434cb753a872466a80d881b426db633d/FLAG7d7163bb5 [2019-11-15 23:13:39,171 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/data/18a5f8e67/434cb753a872466a80d881b426db633d [2019-11-15 23:13:39,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:13:39,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:13:39,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:13:39,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:13:39,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:13:39,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41efb276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39, skipping insertion in model container [2019-11-15 23:13:39,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,188 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:13:39,233 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:13:39,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:13:39,450 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:13:39,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:13:39,570 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:13:39,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39 WrapperNode [2019-11-15 23:13:39,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:13:39,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:13:39,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:13:39,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:13:39,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:13:39,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:13:39,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:13:39,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:13:39,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... [2019-11-15 23:13:39,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:13:39,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:13:39,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:13:39,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:13:39,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:13:39,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:13:39,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:13:40,490 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:13:40,490 INFO L284 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-15 23:13:40,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:40 BoogieIcfgContainer [2019-11-15 23:13:40,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:13:40,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:13:40,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:13:40,495 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:13:40,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:13:39" (1/3) ... [2019-11-15 23:13:40,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4067794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:13:40, skipping insertion in model container [2019-11-15 23:13:40,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:13:39" (2/3) ... [2019-11-15 23:13:40,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4067794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:13:40, skipping insertion in model container [2019-11-15 23:13:40,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:40" (3/3) ... [2019-11-15 23:13:40,508 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-11-15 23:13:40,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:13:40,527 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-15 23:13:40,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-15 23:13:40,554 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:13:40,554 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:13:40,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:13:40,555 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:13:40,555 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:13:40,555 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:13:40,555 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:13:40,555 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:13:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-15 23:13:40,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 23:13:40,578 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:40,579 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:40,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:40,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:40,586 INFO L82 PathProgramCache]: Analyzing trace with hash 934616753, now seen corresponding path program 1 times [2019-11-15 23:13:40,594 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:40,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [825336423] [2019-11-15 23:13:40,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:40,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:13:40,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:40,792 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:40,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:40,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [825336423] [2019-11-15 23:13:40,805 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:40,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-15 23:13:40,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054290391] [2019-11-15 23:13:40,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 23:13:40,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 23:13:40,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:13:40,825 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 7 states. [2019-11-15 23:13:41,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:41,385 INFO L93 Difference]: Finished difference Result 497 states and 751 transitions. [2019-11-15 23:13:41,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-15 23:13:41,387 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-11-15 23:13:41,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:41,411 INFO L225 Difference]: With dead ends: 497 [2019-11-15 23:13:41,412 INFO L226 Difference]: Without dead ends: 379 [2019-11-15 23:13:41,417 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2019-11-15 23:13:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2019-11-15 23:13:41,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 130. [2019-11-15 23:13:41,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-11-15 23:13:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2019-11-15 23:13:41,486 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 17 [2019-11-15 23:13:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:41,487 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2019-11-15 23:13:41,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 23:13:41,487 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2019-11-15 23:13:41,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-15 23:13:41,489 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:41,490 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:41,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:41,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:41,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:41,693 INFO L82 PathProgramCache]: Analyzing trace with hash 216177638, now seen corresponding path program 1 times [2019-11-15 23:13:41,694 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:41,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1386591810] [2019-11-15 23:13:41,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:41,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:13:41,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:41,810 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:41,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1386591810] [2019-11-15 23:13:41,840 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:41,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-15 23:13:41,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731833702] [2019-11-15 23:13:41,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:13:41,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:41,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:13:41,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:13:41,843 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand 5 states. [2019-11-15 23:13:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:42,045 INFO L93 Difference]: Finished difference Result 501 states and 705 transitions. [2019-11-15 23:13:42,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:13:42,045 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-15 23:13:42,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:42,049 INFO L225 Difference]: With dead ends: 501 [2019-11-15 23:13:42,050 INFO L226 Difference]: Without dead ends: 424 [2019-11-15 23:13:42,052 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:13:42,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-11-15 23:13:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 175. [2019-11-15 23:13:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-15 23:13:42,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 251 transitions. [2019-11-15 23:13:42,089 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 251 transitions. Word has length 21 [2019-11-15 23:13:42,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:42,089 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 251 transitions. [2019-11-15 23:13:42,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:13:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 251 transitions. [2019-11-15 23:13:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:13:42,095 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:42,096 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:42,306 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:42,306 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:42,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1163788538, now seen corresponding path program 1 times [2019-11-15 23:13:42,308 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:42,308 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1402556473] [2019-11-15 23:13:42,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:42,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:13:42,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:42,419 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:42,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:42,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1402556473] [2019-11-15 23:13:42,437 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:42,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-15 23:13:42,437 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771533005] [2019-11-15 23:13:42,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:13:42,438 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:42,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:13:42,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:13:42,438 INFO L87 Difference]: Start difference. First operand 175 states and 251 transitions. Second operand 5 states. [2019-11-15 23:13:42,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:42,587 INFO L93 Difference]: Finished difference Result 347 states and 483 transitions. [2019-11-15 23:13:42,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:13:42,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 23:13:42,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:42,590 INFO L225 Difference]: With dead ends: 347 [2019-11-15 23:13:42,590 INFO L226 Difference]: Without dead ends: 274 [2019-11-15 23:13:42,591 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:13:42,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-11-15 23:13:42,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2019-11-15 23:13:42,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-11-15 23:13:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 366 transitions. [2019-11-15 23:13:42,607 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 366 transitions. Word has length 25 [2019-11-15 23:13:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:42,607 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 366 transitions. [2019-11-15 23:13:42,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:13:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 366 transitions. [2019-11-15 23:13:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:13:42,609 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:42,610 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:42,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:42,821 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:42,822 INFO L82 PathProgramCache]: Analyzing trace with hash 611218824, now seen corresponding path program 1 times [2019-11-15 23:13:42,822 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:42,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1448243667] [2019-11-15 23:13:42,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:42,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-15 23:13:42,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:42,942 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:43,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:43,057 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1448243667] [2019-11-15 23:13:43,057 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:43,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:13:43,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564211392] [2019-11-15 23:13:43,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:13:43,058 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:43,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:13:43,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:13:43,059 INFO L87 Difference]: Start difference. First operand 257 states and 366 transitions. Second operand 8 states. [2019-11-15 23:13:45,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:45,394 INFO L93 Difference]: Finished difference Result 1091 states and 1532 transitions. [2019-11-15 23:13:45,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-15 23:13:45,395 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2019-11-15 23:13:45,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:45,403 INFO L225 Difference]: With dead ends: 1091 [2019-11-15 23:13:45,403 INFO L226 Difference]: Without dead ends: 974 [2019-11-15 23:13:45,405 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-11-15 23:13:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2019-11-15 23:13:45,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 277. [2019-11-15 23:13:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-11-15 23:13:45,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 392 transitions. [2019-11-15 23:13:45,429 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 392 transitions. Word has length 25 [2019-11-15 23:13:45,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:45,430 INFO L462 AbstractCegarLoop]: Abstraction has 277 states and 392 transitions. [2019-11-15 23:13:45,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:13:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 392 transitions. [2019-11-15 23:13:45,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:13:45,431 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:45,431 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:45,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:45,638 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash 611278406, now seen corresponding path program 1 times [2019-11-15 23:13:45,638 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:45,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [614764102] [2019-11-15 23:13:45,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:45,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:13:45,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:45,733 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:45,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [614764102] [2019-11-15 23:13:45,737 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:45,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-15 23:13:45,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671892741] [2019-11-15 23:13:45,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:13:45,738 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:45,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:13:45,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:45,738 INFO L87 Difference]: Start difference. First operand 277 states and 392 transitions. Second operand 6 states. [2019-11-15 23:13:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:45,902 INFO L93 Difference]: Finished difference Result 377 states and 518 transitions. [2019-11-15 23:13:45,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:13:45,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-15 23:13:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:45,905 INFO L225 Difference]: With dead ends: 377 [2019-11-15 23:13:45,905 INFO L226 Difference]: Without dead ends: 310 [2019-11-15 23:13:45,906 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:13:45,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2019-11-15 23:13:45,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 257. [2019-11-15 23:13:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2019-11-15 23:13:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 361 transitions. [2019-11-15 23:13:45,926 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 361 transitions. Word has length 25 [2019-11-15 23:13:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:45,927 INFO L462 AbstractCegarLoop]: Abstraction has 257 states and 361 transitions. [2019-11-15 23:13:45,927 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:13:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 361 transitions. [2019-11-15 23:13:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:13:45,932 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:45,932 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:46,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:46,135 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:46,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:46,135 INFO L82 PathProgramCache]: Analyzing trace with hash -873114857, now seen corresponding path program 1 times [2019-11-15 23:13:46,135 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:46,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [707183613] [2019-11-15 23:13:46,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:46,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 23:13:46,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:46,229 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:46,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [707183613] [2019-11-15 23:13:46,296 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:46,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-15 23:13:46,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600240052] [2019-11-15 23:13:46,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-15 23:13:46,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:46,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-15 23:13:46,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:13:46,297 INFO L87 Difference]: Start difference. First operand 257 states and 361 transitions. Second operand 10 states. [2019-11-15 23:13:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:46,850 INFO L93 Difference]: Finished difference Result 502 states and 693 transitions. [2019-11-15 23:13:46,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-15 23:13:46,851 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2019-11-15 23:13:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:46,854 INFO L225 Difference]: With dead ends: 502 [2019-11-15 23:13:46,854 INFO L226 Difference]: Without dead ends: 439 [2019-11-15 23:13:46,854 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2019-11-15 23:13:46,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2019-11-15 23:13:46,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 267. [2019-11-15 23:13:46,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-11-15 23:13:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 376 transitions. [2019-11-15 23:13:46,872 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 376 transitions. Word has length 29 [2019-11-15 23:13:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:46,873 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 376 transitions. [2019-11-15 23:13:46,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-15 23:13:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 376 transitions. [2019-11-15 23:13:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:13:46,874 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:46,874 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:47,075 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:47,076 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:47,077 INFO L82 PathProgramCache]: Analyzing trace with hash -871267815, now seen corresponding path program 1 times [2019-11-15 23:13:47,077 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:47,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [429519440] [2019-11-15 23:13:47,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:47,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-15 23:13:47,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:47,168 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:47,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [429519440] [2019-11-15 23:13:47,190 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:47,191 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:13:47,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274550232] [2019-11-15 23:13:47,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:13:47,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:47,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:13:47,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:47,192 INFO L87 Difference]: Start difference. First operand 267 states and 376 transitions. Second operand 6 states. [2019-11-15 23:13:47,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:47,275 INFO L93 Difference]: Finished difference Result 514 states and 709 transitions. [2019-11-15 23:13:47,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:13:47,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-11-15 23:13:47,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:47,279 INFO L225 Difference]: With dead ends: 514 [2019-11-15 23:13:47,279 INFO L226 Difference]: Without dead ends: 427 [2019-11-15 23:13:47,279 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:13:47,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-11-15 23:13:47,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 349. [2019-11-15 23:13:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-15 23:13:47,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 480 transitions. [2019-11-15 23:13:47,305 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 480 transitions. Word has length 29 [2019-11-15 23:13:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:47,306 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 480 transitions. [2019-11-15 23:13:47,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:13:47,306 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 480 transitions. [2019-11-15 23:13:47,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-15 23:13:47,307 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:47,307 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:47,518 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:47,518 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:47,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423153, now seen corresponding path program 1 times [2019-11-15 23:13:47,519 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:47,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1936386542] [2019-11-15 23:13:47,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:47,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-15 23:13:47,609 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:47,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 23:13:47,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:47,646 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:47,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1936386542] [2019-11-15 23:13:47,674 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:47,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:13:47,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139194665] [2019-11-15 23:13:47,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:13:47,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:47,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:13:47,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:47,675 INFO L87 Difference]: Start difference. First operand 349 states and 480 transitions. Second operand 6 states. [2019-11-15 23:13:47,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:47,880 INFO L93 Difference]: Finished difference Result 480 states and 656 transitions. [2019-11-15 23:13:47,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:13:47,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2019-11-15 23:13:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:47,884 INFO L225 Difference]: With dead ends: 480 [2019-11-15 23:13:47,884 INFO L226 Difference]: Without dead ends: 478 [2019-11-15 23:13:47,885 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-15 23:13:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-11-15 23:13:47,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 347. [2019-11-15 23:13:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-15 23:13:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 473 transitions. [2019-11-15 23:13:47,916 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 473 transitions. Word has length 29 [2019-11-15 23:13:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:47,917 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 473 transitions. [2019-11-15 23:13:47,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:13:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 473 transitions. [2019-11-15 23:13:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 23:13:47,919 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:47,920 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:48,121 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:48,122 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:48,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1174763763, now seen corresponding path program 1 times [2019-11-15 23:13:48,122 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:48,122 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [672128260] [2019-11-15 23:13:48,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/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 [2019-11-15 23:13:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:13:48,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 23:13:48,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:13:48,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:48,181 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:13:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:13:48,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [672128260] [2019-11-15 23:13:48,192 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:13:48,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-15 23:13:48,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727911265] [2019-11-15 23:13:48,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:13:48,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:13:48,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:13:48,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:13:48,193 INFO L87 Difference]: Start difference. First operand 347 states and 473 transitions. Second operand 6 states. [2019-11-15 23:13:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:13:48,318 INFO L93 Difference]: Finished difference Result 406 states and 547 transitions. [2019-11-15 23:13:48,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:13:48,318 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-11-15 23:13:48,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:13:48,321 INFO L225 Difference]: With dead ends: 406 [2019-11-15 23:13:48,321 INFO L226 Difference]: Without dead ends: 401 [2019-11-15 23:13:48,321 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:13:48,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2019-11-15 23:13:48,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 347. [2019-11-15 23:13:48,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-15 23:13:48,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 470 transitions. [2019-11-15 23:13:48,345 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 470 transitions. Word has length 30 [2019-11-15 23:13:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:13:48,346 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 470 transitions. [2019-11-15 23:13:48,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:13:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 470 transitions. [2019-11-15 23:13:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:13:48,347 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:13:48,347 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:13:48,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:48,550 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:13:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:13:48,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1078465644, now seen corresponding path program 1 times [2019-11-15 23:13:48,551 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:13:48,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [713067614] [2019-11-15 23:13:48,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:13:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:13:48,785 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-15 23:13:48,785 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:13:48,985 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 23:13:49,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:13:49 BoogieIcfgContainer [2019-11-15 23:13:49,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:13:49,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:13:49,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:13:49,014 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:13:49,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:13:40" (3/4) ... [2019-11-15 23:13:49,017 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 23:13:49,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d7ff7fcf-4da6-476c-a920-ab8eab82af5a/bin/uautomizer/witness.graphml [2019-11-15 23:13:49,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:13:49,087 INFO L168 Benchmark]: Toolchain (without parser) took 9912.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.2 MB). Free memory was 952.3 MB in the beginning and 911.6 MB in the end (delta: 40.7 MB). Peak memory consumption was 260.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,088 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:13:49,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -201.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:13:49,089 INFO L168 Benchmark]: Boogie Preprocessor took 86.80 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,089 INFO L168 Benchmark]: RCFGBuilder took 773.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,090 INFO L168 Benchmark]: TraceAbstraction took 8520.99 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 918.6 MB in the end (delta: 195.0 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,090 INFO L168 Benchmark]: Witness Printer took 71.64 ms. Allocated memory is still 1.2 GB. Free memory was 918.6 MB in the beginning and 911.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:13:49,093 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -201.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.80 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 773.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8520.99 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 1.1 GB in the beginning and 918.6 MB in the end (delta: 195.0 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. * Witness Printer took 71.64 ms. Allocated memory is still 1.2 GB. Free memory was 918.6 MB in the beginning and 911.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add ; [L223] unsigned int zero ; [L224] int sa ; [L225] int sb ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L230] int tmp___3 ; [L231] int tmp___4 ; [L232] int tmp___5 ; [L233] int tmp___6 ; [L234] int tmp___7 ; [L235] int tmp___8 ; [L236] int tmp___9 ; [L237] int __retres23 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L241] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L242] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L243] b = base2flt(mb, eb) [L245] COND FALSE !(a < zero) [L248] COND TRUE a > zero [L249] tmp = 1 [L253] sa = tmp [L255] COND FALSE !(b < zero) [L258] COND TRUE b > zero [L259] tmp___0 = 1 [L263] sb = tmp___0 [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 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [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) [L6] COND FALSE !(!(cond)) [L105] delta = ea - eb [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 6 error locations. Result: UNSAFE, OverallTime: 8.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1327 SDtfs, 3512 SDslu, 5147 SDs, 0 SdLazy, 1110 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 485 GetRequests, 402 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1700 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 442 ConstructedInterpolants, 6 QuantifiedInterpolants, 19474 SizeOfPredicates, 46 NumberOfNonLiveVariables, 522 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...