./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 16cd8401275d965058442f4c39d1da335e2aa9f4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 0.2.1-dev-20ed64e [2021-08-27 11:27:16,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:27:16,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:27:16,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:27:16,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:27:16,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:27:16,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:27:16,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:27:16,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:27:16,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:27:16,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:27:16,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:27:16,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:27:16,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:27:16,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:27:16,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:27:16,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:27:16,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:27:16,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:27:16,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:27:16,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:27:16,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:27:16,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:27:16,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:27:16,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:27:16,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:27:16,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:27:16,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:27:16,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:27:16,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:27:16,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:27:16,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:27:16,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:27:16,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:27:16,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:27:16,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:27:16,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:27:16,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:27:16,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:27:16,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:27:16,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:27:16,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-27 11:27:16,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:27:16,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:27:16,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:27:16,598 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:27:16,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:27:16,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:27:16,599 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:27:16,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:27:16,600 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 11:27:16,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:27:16,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:27:16,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 11:27:16,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:27:16,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:27:16,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:27:16,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:27:16,602 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:27:16,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 11:27:16,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:27:16,602 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:27:16,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:27:16,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:27:16,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:27:16,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:27:16,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:27:16,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:27:16,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:27:16,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:27:16,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:27:16,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:27:16,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:27:16,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:27:16,606 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16cd8401275d965058442f4c39d1da335e2aa9f4 [2021-08-27 11:27:16,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:27:16,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:27:16,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:27:16,931 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:27:16,932 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:27:16,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2021-08-27 11:27:17,001 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b26be8377/714b9dcfd3434476819e8dedebce63b7/FLAG5ec1fc6be [2021-08-27 11:27:17,415 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:27:17,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2021-08-27 11:27:17,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b26be8377/714b9dcfd3434476819e8dedebce63b7/FLAG5ec1fc6be [2021-08-27 11:27:17,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b26be8377/714b9dcfd3434476819e8dedebce63b7 [2021-08-27 11:27:17,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:27:17,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:27:17,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:27:17,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:27:17,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:27:17,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:27:17" (1/1) ... [2021-08-27 11:27:17,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c955987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:17, skipping insertion in model container [2021-08-27 11:27:17,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:27:17" (1/1) ... [2021-08-27 11:27:17,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:27:17,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:27:17,961 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[511,524] [2021-08-27 11:27:17,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:27:18,007 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:27:18,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c[511,524] [2021-08-27 11:27:18,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:27:18,099 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:27:18,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18 WrapperNode [2021-08-27 11:27:18,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:27:18,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:27:18,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:27:18,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:27:18,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:27:18,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:27:18,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:27:18,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:27:18,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:27:18,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:27:18,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:27:18,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:27:18,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (1/1) ... [2021-08-27 11:27:18,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:27:18,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:27:18,250 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 11:27:18,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 11:27:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:27:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:27:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:27:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:27:18,980 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:27:18,981 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-08-27 11:27:18,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:27:18 BoogieIcfgContainer [2021-08-27 11:27:18,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:27:18,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:27:18,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:27:18,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:27:18,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:27:17" (1/3) ... [2021-08-27 11:27:18,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5500a005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:27:18, skipping insertion in model container [2021-08-27 11:27:18,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:27:18" (2/3) ... [2021-08-27 11:27:18,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5500a005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:27:18, skipping insertion in model container [2021-08-27 11:27:18,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:27:18" (3/3) ... [2021-08-27 11:27:18,989 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2021-08-27 11:27:18,993 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:27:18,993 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-08-27 11:27:19,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:27:19,035 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 11:27:19,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-08-27 11:27:19,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 170 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:27:19,052 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,053 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,053 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:19,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-08-27 11:27:19,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689400753] [2021-08-27 11:27:19,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:19,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:19,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:19,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689400753] [2021-08-27 11:27:19,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689400753] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:19,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:19,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:27:19,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363384235] [2021-08-27 11:27:19,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 11:27:19,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:19,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 11:27:19,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 11:27:19,206 INFO L87 Difference]: Start difference. First operand has 171 states, 122 states have (on average 1.7950819672131149) internal successors, (219), 170 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:19,253 INFO L93 Difference]: Finished difference Result 320 states and 410 transitions. [2021-08-27 11:27:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 11:27:19,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-27 11:27:19,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:19,266 INFO L225 Difference]: With dead ends: 320 [2021-08-27 11:27:19,266 INFO L226 Difference]: Without dead ends: 151 [2021-08-27 11:27:19,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 11:27:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-08-27 11:27:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-08-27 11:27:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 107 states have (on average 1.6355140186915889) internal successors, (175), 150 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 175 transitions. [2021-08-27 11:27:19,318 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 175 transitions. Word has length 7 [2021-08-27 11:27:19,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:19,318 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 175 transitions. [2021-08-27 11:27:19,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,319 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 175 transitions. [2021-08-27 11:27:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:27:19,319 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,320 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:27:19,320 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:19,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-08-27 11:27:19,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422147519] [2021-08-27 11:27:19,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:19,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:19,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422147519] [2021-08-27 11:27:19,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422147519] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:19,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:19,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:27:19,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444598579] [2021-08-27 11:27:19,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:27:19,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:19,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:27:19,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:19,397 INFO L87 Difference]: Start difference. First operand 151 states and 175 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:19,572 INFO L93 Difference]: Finished difference Result 299 states and 344 transitions. [2021-08-27 11:27:19,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:27:19,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-27 11:27:19,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:19,576 INFO L225 Difference]: With dead ends: 299 [2021-08-27 11:27:19,577 INFO L226 Difference]: Without dead ends: 167 [2021-08-27 11:27:19,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-08-27 11:27:19,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2021-08-27 11:27:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 120 states have (on average 1.575) internal successors, (189), 163 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 189 transitions. [2021-08-27 11:27:19,595 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 189 transitions. Word has length 7 [2021-08-27 11:27:19,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:19,596 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 189 transitions. [2021-08-27 11:27:19,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 189 transitions. [2021-08-27 11:27:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:27:19,597 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 11:27:19,599 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:19,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1493296196, now seen corresponding path program 1 times [2021-08-27 11:27:19,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78674836] [2021-08-27 11:27:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:19,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:19,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78674836] [2021-08-27 11:27:19,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78674836] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:19,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:19,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:27:19,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807421444] [2021-08-27 11:27:19,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:27:19,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:19,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:27:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:27:19,667 INFO L87 Difference]: Start difference. First operand 164 states and 189 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:19,812 INFO L93 Difference]: Finished difference Result 253 states and 288 transitions. [2021-08-27 11:27:19,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:27:19,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-27 11:27:19,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:19,814 INFO L225 Difference]: With dead ends: 253 [2021-08-27 11:27:19,814 INFO L226 Difference]: Without dead ends: 246 [2021-08-27 11:27:19,814 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:27:19,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-08-27 11:27:19,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 165. [2021-08-27 11:27:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 126 states have (on average 1.5158730158730158) internal successors, (191), 164 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 191 transitions. [2021-08-27 11:27:19,838 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 191 transitions. Word has length 10 [2021-08-27 11:27:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:19,839 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 191 transitions. [2021-08-27 11:27:19,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 191 transitions. [2021-08-27 11:27:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:27:19,840 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,840 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 11:27:19,841 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:19,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,842 INFO L82 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2021-08-27 11:27:19,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450647188] [2021-08-27 11:27:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:19,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:19,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450647188] [2021-08-27 11:27:19,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450647188] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:19,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:19,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:27:19,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817724664] [2021-08-27 11:27:19,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:27:19,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:27:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:19,914 INFO L87 Difference]: Start difference. First operand 165 states and 191 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:19,957 INFO L93 Difference]: Finished difference Result 290 states and 335 transitions. [2021-08-27 11:27:19,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:27:19,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-27 11:27:19,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:19,959 INFO L225 Difference]: With dead ends: 290 [2021-08-27 11:27:19,959 INFO L226 Difference]: Without dead ends: 128 [2021-08-27 11:27:19,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-08-27 11:27:19,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-08-27 11:27:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 95 states have (on average 1.5473684210526315) internal successors, (147), 127 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2021-08-27 11:27:19,973 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 10 [2021-08-27 11:27:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:19,974 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2021-08-27 11:27:19,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:19,974 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2021-08-27 11:27:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 11:27:19,975 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:19,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:19,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 11:27:19,975 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:19,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:19,977 INFO L82 PathProgramCache]: Analyzing trace with hash 952458318, now seen corresponding path program 1 times [2021-08-27 11:27:19,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:19,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509686695] [2021-08-27 11:27:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:19,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:20,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:20,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509686695] [2021-08-27 11:27:20,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509686695] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:20,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:20,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:27:20,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528276026] [2021-08-27 11:27:20,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:27:20,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:20,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:27:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:20,027 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:20,083 INFO L93 Difference]: Finished difference Result 200 states and 225 transitions. [2021-08-27 11:27:20,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:27:20,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-27 11:27:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:20,084 INFO L225 Difference]: With dead ends: 200 [2021-08-27 11:27:20,085 INFO L226 Difference]: Without dead ends: 198 [2021-08-27 11:27:20,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:27:20,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-08-27 11:27:20,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 126. [2021-08-27 11:27:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 95 states have (on average 1.5263157894736843) internal successors, (145), 125 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2021-08-27 11:27:20,089 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 11 [2021-08-27 11:27:20,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:20,089 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2021-08-27 11:27:20,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,090 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2021-08-27 11:27:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 11:27:20,090 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:20,090 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:20,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 11:27:20,091 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:20,091 INFO L82 PathProgramCache]: Analyzing trace with hash 348884996, now seen corresponding path program 1 times [2021-08-27 11:27:20,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:20,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550625790] [2021-08-27 11:27:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:20,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:20,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:20,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:20,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550625790] [2021-08-27 11:27:20,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550625790] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:20,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:20,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:27:20,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147185926] [2021-08-27 11:27:20,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:27:20,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:27:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:27:20,123 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:20,191 INFO L93 Difference]: Finished difference Result 207 states and 234 transitions. [2021-08-27 11:27:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:27:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-27 11:27:20,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:20,192 INFO L225 Difference]: With dead ends: 207 [2021-08-27 11:27:20,193 INFO L226 Difference]: Without dead ends: 204 [2021-08-27 11:27:20,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:27:20,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-08-27 11:27:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 130. [2021-08-27 11:27:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 100 states have (on average 1.5) internal successors, (150), 129 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2021-08-27 11:27:20,197 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 12 [2021-08-27 11:27:20,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:20,198 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2021-08-27 11:27:20,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2021-08-27 11:27:20,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:27:20,199 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:20,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:20,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 11:27:20,199 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:20,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:20,200 INFO L82 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2021-08-27 11:27:20,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:20,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134593184] [2021-08-27 11:27:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:20,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:27:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:27:20,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:27:20,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134593184] [2021-08-27 11:27:20,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134593184] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:27:20,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:27:20,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:27:20,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888342407] [2021-08-27 11:27:20,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:27:20,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:27:20,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:27:20,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:27:20,239 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:27:20,335 INFO L93 Difference]: Finished difference Result 211 states and 240 transitions. [2021-08-27 11:27:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:27:20,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-27 11:27:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:27:20,337 INFO L225 Difference]: With dead ends: 211 [2021-08-27 11:27:20,337 INFO L226 Difference]: Without dead ends: 209 [2021-08-27 11:27:20,338 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:27:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-08-27 11:27:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 133. [2021-08-27 11:27:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 104 states have (on average 1.4807692307692308) internal successors, (154), 132 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2021-08-27 11:27:20,349 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 13 [2021-08-27 11:27:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:27:20,350 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2021-08-27 11:27:20,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:27:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2021-08-27 11:27:20,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:27:20,351 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:27:20,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:27:20,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 11:27:20,351 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2021-08-27 11:27:20,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:27:20,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2021-08-27 11:27:20,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:27:20,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199690103] [2021-08-27 11:27:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:27:20,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:27:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:27:20,375 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 11:27:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:27:20,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 11:27:20,416 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 11:27:20,417 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:27:20,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 11:27:20,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:27:20,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:27:20 BoogieIcfgContainer [2021-08-27 11:27:20,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:27:20,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:27:20,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:27:20,483 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:27:20,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:27:18" (3/4) ... [2021-08-27 11:27:20,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 11:27:20,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:27:20,491 INFO L168 Benchmark]: Toolchain (without parser) took 2691.32 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 29.3 MB in the beginning and 36.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,492 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:27:20,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.82 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.1 MB in the beginning and 50.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.35 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 48.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,494 INFO L168 Benchmark]: Boogie Preprocessor took 53.39 ms. Allocated memory is still 69.2 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,494 INFO L168 Benchmark]: RCFGBuilder took 761.59 ms. Allocated memory is still 69.2 MB. Free memory was 46.3 MB in the beginning and 41.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,495 INFO L168 Benchmark]: TraceAbstraction took 1497.49 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 36.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-08-27 11:27:20,495 INFO L168 Benchmark]: Witness Printer took 3.60 ms. Allocated memory is still 83.9 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:27:20,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.82 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 29.1 MB in the beginning and 50.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.35 ms. Allocated memory is still 69.2 MB. Free memory was 50.9 MB in the beginning and 48.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.39 ms. Allocated memory is still 69.2 MB. Free memory was 48.2 MB in the beginning and 46.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 761.59 ms. Allocated memory is still 69.2 MB. Free memory was 46.3 MB in the beginning and 41.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1497.49 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 36.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.60 ms. Allocated memory is still 83.9 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L222] unsigned int a ; [L223] unsigned int ma = __VERIFIER_nondet_uint(); [L224] signed char ea = __VERIFIER_nondet_char(); [L225] unsigned int b ; [L226] unsigned int mb = __VERIFIER_nondet_uint(); [L227] signed char eb = __VERIFIER_nondet_char(); [L228] unsigned int r_add1 ; [L229] unsigned int r_add2 ; [L230] unsigned int zero ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int __retres14 ; [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND TRUE ! m [L26] __retres4 = 0U [L76] return (__retres4); [L237] zero = base2flt(0, 0) [L21] unsigned int res ; [L22] unsigned int __retres4 ; [L25] COND FALSE !(! m) [L31] COND FALSE !(m < 1U << 24U) [L53] COND TRUE 1 [L55] COND FALSE !(m >= 1U << 25U) [L72] m = m & ~ (1U << 24U) [L73] EXPR e + 128 [L73] (e + 128) << 24U - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 111]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 111]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 129]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 129]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 111]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 111]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 129]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 129]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 171 locations, 48 error locations. Started 1 CEGAR loops. OverallTime: 1423.5ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 11.0ms, AutomataDifference: 684.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1238 SDtfs, 965 SDslu, 610 SDs, 0 SdLazy, 267 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 343.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 105.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 306 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.0ms SsaConstructionTime, 135.5ms SatisfiabilityAnalysisTime, 219.4ms InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 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 [2021-08-27 11:27:20,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...