./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1849bc810ee5b8b8988c92fc47967ed0208ce50f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:36:22,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:36:22,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:36:22,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:36:22,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:36:22,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:36:22,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:36:22,143 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:36:22,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:36:22,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:36:22,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:36:22,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:36:22,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:36:22,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:36:22,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:36:22,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:36:22,158 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:36:22,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:36:22,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:36:22,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:36:22,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:36:22,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:36:22,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:36:22,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:36:22,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:36:22,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:36:22,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:36:22,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:36:22,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:36:22,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:36:22,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:36:22,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:36:22,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:36:22,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:36:22,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:36:22,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:36:22,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:36:22,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:36:22,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:36:22,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:36:22,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:36:22,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-29 19:36:22,241 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:36:22,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:36:22,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:36:22,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:36:22,251 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:36:22,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:36:22,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:36:22,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:36:22,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:36:22,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:36:22,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:36:22,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:36:22,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:36:22,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:36:22,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:36:22,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:36:22,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:36:22,256 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:36:22,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:36:22,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:36:22,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:36:22,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:36:22,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:36:22,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:36:22,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:36:22,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:36:22,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:36:22,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:36:22,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:36:22,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:36:22,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:36:22,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1849bc810ee5b8b8988c92fc47967ed0208ce50f [2020-11-29 19:36:22,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:36:22,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:36:22,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:36:22,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:36:22,630 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:36:22,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2020-11-29 19:36:22,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/data/be201e834/dd338a8d6c0a450bb7fec622de6df467/FLAG7f1917c76 [2020-11-29 19:36:23,252 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:36:23,253 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2020-11-29 19:36:23,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/data/be201e834/dd338a8d6c0a450bb7fec622de6df467/FLAG7f1917c76 [2020-11-29 19:36:23,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/bin/uautomizer/data/be201e834/dd338a8d6c0a450bb7fec622de6df467 [2020-11-29 19:36:23,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:36:23,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:36:23,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:36:23,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:36:23,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:36:23,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:36:23" (1/1) ... [2020-11-29 19:36:23,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6d6d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:23, skipping insertion in model container [2020-11-29 19:36:23,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:36:23" (1/1) ... [2020-11-29 19:36:23,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:36:23,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:36:23,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:36:23,949 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:36:24,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:36:24,071 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:36:24,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24 WrapperNode [2020-11-29 19:36:24,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:36:24,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:36:24,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:36:24,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:36:24,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:36:24,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:36:24,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:36:24,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:36:24,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... [2020-11-29 19:36:24,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:36:24,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:36:24,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:36:24,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:36:24,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf58322c-38d0-424d-8803-1bc1bb9c4914/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 [2020-11-29 19:36:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:36:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:36:24,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:36:24,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:36:25,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:36:25,222 INFO L298 CfgBuilder]: Removed 42 assume(true) statements. [2020-11-29 19:36:25,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:25 BoogieIcfgContainer [2020-11-29 19:36:25,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:36:25,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:36:25,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:36:25,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:36:25,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:36:23" (1/3) ... [2020-11-29 19:36:25,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563fd518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:36:25, skipping insertion in model container [2020-11-29 19:36:25,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:36:24" (2/3) ... [2020-11-29 19:36:25,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563fd518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:36:25, skipping insertion in model container [2020-11-29 19:36:25,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:25" (3/3) ... [2020-11-29 19:36:25,241 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2020-11-29 19:36:25,254 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:36:25,260 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2020-11-29 19:36:25,275 INFO L253 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2020-11-29 19:36:25,308 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:36:25,309 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:36:25,309 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:36:25,309 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:36:25,309 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:36:25,309 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:36:25,312 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:36:25,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:36:25,335 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2020-11-29 19:36:25,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:36:25,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:25,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:25,343 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:25,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:25,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2020-11-29 19:36:25,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:25,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151173431] [2020-11-29 19:36:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:25,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151173431] [2020-11-29 19:36:25,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:25,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:36:25,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956824687] [2020-11-29 19:36:25,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:36:25,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:36:25,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:36:25,533 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2020-11-29 19:36:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:25,573 INFO L93 Difference]: Finished difference Result 308 states and 416 transitions. [2020-11-29 19:36:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:36:25,575 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 19:36:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:25,588 INFO L225 Difference]: With dead ends: 308 [2020-11-29 19:36:25,588 INFO L226 Difference]: Without dead ends: 123 [2020-11-29 19:36:25,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:36:25,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-29 19:36:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-11-29 19:36:25,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 19:36:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-11-29 19:36:25,643 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 7 [2020-11-29 19:36:25,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:25,643 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-11-29 19:36:25,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:36:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-11-29 19:36:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 19:36:25,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:25,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:25,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:36:25,646 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:25,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2020-11-29 19:36:25,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:25,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731333570] [2020-11-29 19:36:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:25,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:25,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731333570] [2020-11-29 19:36:25,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:25,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:36:25,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804567957] [2020-11-29 19:36:25,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:36:25,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:25,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:36:25,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:25,727 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 3 states. [2020-11-29 19:36:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:25,974 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2020-11-29 19:36:25,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:36:25,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-29 19:36:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:25,984 INFO L225 Difference]: With dead ends: 243 [2020-11-29 19:36:25,984 INFO L226 Difference]: Without dead ends: 139 [2020-11-29 19:36:25,986 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:25,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-29 19:36:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2020-11-29 19:36:25,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-29 19:36:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2020-11-29 19:36:26,004 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 7 [2020-11-29 19:36:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:26,004 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2020-11-29 19:36:26,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:36:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2020-11-29 19:36:26,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:36:26,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:26,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:26,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:36:26,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:26,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:26,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1493296196, now seen corresponding path program 1 times [2020-11-29 19:36:26,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:26,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737002553] [2020-11-29 19:36:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:26,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737002553] [2020-11-29 19:36:26,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:26,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:36:26,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189453276] [2020-11-29 19:36:26,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:36:26,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:26,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:36:26,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:36:26,082 INFO L87 Difference]: Start difference. First operand 136 states and 160 transitions. Second operand 4 states. [2020-11-29 19:36:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:26,293 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2020-11-29 19:36:26,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:36:26,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-29 19:36:26,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:26,298 INFO L225 Difference]: With dead ends: 197 [2020-11-29 19:36:26,298 INFO L226 Difference]: Without dead ends: 190 [2020-11-29 19:36:26,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:36:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-29 19:36:26,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2020-11-29 19:36:26,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-29 19:36:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 162 transitions. [2020-11-29 19:36:26,327 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 162 transitions. Word has length 10 [2020-11-29 19:36:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:26,328 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 162 transitions. [2020-11-29 19:36:26,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:36:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 162 transitions. [2020-11-29 19:36:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 19:36:26,329 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:26,337 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:26,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:36:26,338 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:26,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:26,341 INFO L82 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2020-11-29 19:36:26,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:26,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275695204] [2020-11-29 19:36:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:26,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275695204] [2020-11-29 19:36:26,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:26,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:36:26,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619553666] [2020-11-29 19:36:26,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:36:26,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:26,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:36:26,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:26,439 INFO L87 Difference]: Start difference. First operand 137 states and 162 transitions. Second operand 3 states. [2020-11-29 19:36:26,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:26,543 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2020-11-29 19:36:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:36:26,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-29 19:36:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:26,548 INFO L225 Difference]: With dead ends: 234 [2020-11-29 19:36:26,548 INFO L226 Difference]: Without dead ends: 100 [2020-11-29 19:36:26,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:26,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-11-29 19:36:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-11-29 19:36:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-29 19:36:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2020-11-29 19:36:26,569 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 10 [2020-11-29 19:36:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:26,570 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2020-11-29 19:36:26,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:36:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2020-11-29 19:36:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 19:36:26,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:26,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:26,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:36:26,573 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:26,574 INFO L82 PathProgramCache]: Analyzing trace with hash 952458318, now seen corresponding path program 1 times [2020-11-29 19:36:26,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:26,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503455098] [2020-11-29 19:36:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:26,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:26,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503455098] [2020-11-29 19:36:26,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:26,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:36:26,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730984470] [2020-11-29 19:36:26,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:36:26,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:26,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:36:26,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:26,642 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand 3 states. [2020-11-29 19:36:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:26,772 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2020-11-29 19:36:26,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:36:26,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-29 19:36:26,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:26,777 INFO L225 Difference]: With dead ends: 144 [2020-11-29 19:36:26,778 INFO L226 Difference]: Without dead ends: 142 [2020-11-29 19:36:26,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:36:26,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-29 19:36:26,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2020-11-29 19:36:26,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-29 19:36:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2020-11-29 19:36:26,794 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 11 [2020-11-29 19:36:26,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:26,794 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2020-11-29 19:36:26,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:36:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2020-11-29 19:36:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 19:36:26,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:26,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:26,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:36:26,797 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:26,798 INFO L82 PathProgramCache]: Analyzing trace with hash 348884996, now seen corresponding path program 1 times [2020-11-29 19:36:26,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:26,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186969526] [2020-11-29 19:36:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:26,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186969526] [2020-11-29 19:36:26,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:26,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:36:26,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29432014] [2020-11-29 19:36:26,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:36:26,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:26,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:36:26,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:36:26,871 INFO L87 Difference]: Start difference. First operand 98 states and 116 transitions. Second operand 4 states. [2020-11-29 19:36:27,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:27,010 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2020-11-29 19:36:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:36:27,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 19:36:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:27,012 INFO L225 Difference]: With dead ends: 151 [2020-11-29 19:36:27,012 INFO L226 Difference]: Without dead ends: 148 [2020-11-29 19:36:27,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:36:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-11-29 19:36:27,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2020-11-29 19:36:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 19:36:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-11-29 19:36:27,024 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 12 [2020-11-29 19:36:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:27,024 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-11-29 19:36:27,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:36:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-11-29 19:36:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:36:27,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:27,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:27,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:36:27,026 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:27,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:27,033 INFO L82 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2020-11-29 19:36:27,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:27,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418340323] [2020-11-29 19:36:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:36:27,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:36:27,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418340323] [2020-11-29 19:36:27,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:36:27,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:36:27,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300061036] [2020-11-29 19:36:27,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:36:27,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:36:27,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:36:27,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:36:27,116 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 4 states. [2020-11-29 19:36:27,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:36:27,220 INFO L93 Difference]: Finished difference Result 155 states and 182 transitions. [2020-11-29 19:36:27,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:36:27,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-29 19:36:27,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:36:27,223 INFO L225 Difference]: With dead ends: 155 [2020-11-29 19:36:27,223 INFO L226 Difference]: Without dead ends: 153 [2020-11-29 19:36:27,224 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:36:27,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-29 19:36:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 105. [2020-11-29 19:36:27,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-29 19:36:27,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-11-29 19:36:27,238 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 13 [2020-11-29 19:36:27,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:36:27,238 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-11-29 19:36:27,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:36:27,239 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-11-29 19:36:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 19:36:27,244 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:36:27,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:36:27,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:36:27,247 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 19:36:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:36:27,248 INFO L82 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2020-11-29 19:36:27,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:36:27,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716813337] [2020-11-29 19:36:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:36:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:36:27,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:36:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:36:27,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:36:27,355 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:36:27,356 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:36:27,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:36:27,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:36:27 BoogieIcfgContainer [2020-11-29 19:36:27,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:36:27,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:36:27,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:36:27,405 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:36:27,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:36:25" (3/4) ... [2020-11-29 19:36:27,410 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:36:27,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:36:27,413 INFO L168 Benchmark]: Toolchain (without parser) took 3817.82 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 65.3 MB in the beginning and 64.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,414 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 73.9 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:36:27,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 476.78 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 74.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.75 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 71.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,417 INFO L168 Benchmark]: Boogie Preprocessor took 59.33 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,418 INFO L168 Benchmark]: RCFGBuilder took 1024.54 ms. Allocated memory is still 100.7 MB. Free memory was 69.3 MB in the beginning and 70.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,419 INFO L168 Benchmark]: TraceAbstraction took 2173.21 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 70.2 MB in the beginning and 64.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2020-11-29 19:36:27,419 INFO L168 Benchmark]: Witness Printer took 5.91 ms. Allocated memory is still 134.2 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:36:27,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 73.9 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 476.78 ms. Allocated memory is still 100.7 MB. Free memory was 65.1 MB in the beginning and 74.0 MB in the end (delta: -8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.75 ms. Allocated memory is still 100.7 MB. Free memory was 73.9 MB in the beginning and 71.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.33 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 69.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1024.54 ms. Allocated memory is still 100.7 MB. Free memory was 69.3 MB in the beginning and 70.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2173.21 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 70.2 MB in the beginning and 64.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.91 ms. Allocated memory is still 134.2 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 167 locations, 36 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 980 SDtfs, 733 SDslu, 436 SDs, 0 SdLazy, 267 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=0, 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, 7 MinimizatonAttempts, 194 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 1623 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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...