./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_1-3.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 1849bc810ee5b8b8988c92fc47967ed0208ce50f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:26:46,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:26:46,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:26:46,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:26:46,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:26:46,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:26:46,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:26:46,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:26:46,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:26:46,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:26:46,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:26:46,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:26:46,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:26:46,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:26:46,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:26:46,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:26:46,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:26:46,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:26:46,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:26:46,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:26:46,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:26:46,547 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:26:46,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:26:46,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:26:46,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:26:46,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:26:46,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:26:46,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:26:46,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:26:46,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:26:46,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:26:46,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:26:46,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:26:46,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:26:46,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:26:46,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:26:46,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:26:46,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:26:46,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:26:46,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:26:46,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:26:46,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-27 11:26:46,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:26:46,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:26:46,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:26:46,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:26:46,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:26:46,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:26:46,576 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:26:46,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:26:46,576 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 11:26:46,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:26:46,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:26:46,578 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:26:46,578 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 11:26:46,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:26:46,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:26:46,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:26:46,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:26:46,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:26:46,579 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:26:46,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:26:46,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:26:46,580 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:26:46,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1849bc810ee5b8b8988c92fc47967ed0208ce50f [2021-08-27 11:26:46,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:26:46,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:26:46,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:26:46,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:26:46,800 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:26:46,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2021-08-27 11:26:46,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576c1a41b/3c81e1624dd14baa928b56f4ad24ae15/FLAGd43a66cef [2021-08-27 11:26:47,176 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:26:47,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2021-08-27 11:26:47,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576c1a41b/3c81e1624dd14baa928b56f4ad24ae15/FLAGd43a66cef [2021-08-27 11:26:47,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/576c1a41b/3c81e1624dd14baa928b56f4ad24ae15 [2021-08-27 11:26:47,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:26:47,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:26:47,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:26:47,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:26:47,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:26:47,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311bebf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47, skipping insertion in model container [2021-08-27 11:26:47,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:26:47,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:26:47,722 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_1-3.c.cil.c[424,437] [2021-08-27 11:26:47,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:26:47,782 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:26:47,813 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_1-3.c.cil.c[424,437] [2021-08-27 11:26:47,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:26:47,876 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:26:47,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47 WrapperNode [2021-08-27 11:26:47,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:26:47,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:26:47,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:26:47,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:26:47,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:26:47,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:26:47,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:26:47,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:26:47,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:26:47,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:26:47,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:26:47,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:26:47,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (1/1) ... [2021-08-27 11:26:47,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:26:48,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:26:48,038 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 11:26:48,090 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 11:26:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:26:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:26:48,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:26:48,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:26:48,633 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:26:48,634 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-08-27 11:26:48,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:48 BoogieIcfgContainer [2021-08-27 11:26:48,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:26:48,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:26:48,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:26:48,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:26:48,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:26:47" (1/3) ... [2021-08-27 11:26:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a076e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:26:48, skipping insertion in model container [2021-08-27 11:26:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:26:47" (2/3) ... [2021-08-27 11:26:48,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a076e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:26:48, skipping insertion in model container [2021-08-27 11:26:48,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:48" (3/3) ... [2021-08-27 11:26:48,642 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2021-08-27 11:26:48,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:26:48,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-08-27 11:26:48,683 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:26:48,688 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 11:26:48,688 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-08-27 11:26:48,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 160 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 11:26:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:26:48,705 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:48,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:48,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:48,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-08-27 11:26:48,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:48,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773400093] [2021-08-27 11:26:48,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:48,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:48,822 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 11:26:48,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:48,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773400093] [2021-08-27 11:26:48,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773400093] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:48,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:48,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:26:48,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853371879] [2021-08-27 11:26:48,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-27 11:26:48,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:48,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-27 11:26:48,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-27 11:26:48,839 INFO L87 Difference]: Start difference. First operand has 161 states, 124 states have (on average 1.7661290322580645) internal successors, (219), 160 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 11:26:48,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:48,873 INFO L93 Difference]: Finished difference Result 302 states and 410 transitions. [2021-08-27 11:26:48,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 11:26:48,874 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 11:26:48,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:48,882 INFO L225 Difference]: With dead ends: 302 [2021-08-27 11:26:48,882 INFO L226 Difference]: Without dead ends: 123 [2021-08-27 11:26:48,885 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 11:26:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-08-27 11:26:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-08-27 11:26:48,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 89 states have (on average 1.6404494382022472) internal successors, (146), 122 states have internal predecessors, (146), 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 11:26:48,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2021-08-27 11:26:48,907 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 7 [2021-08-27 11:26:48,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:48,908 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2021-08-27 11:26:48,908 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 11:26:48,908 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2021-08-27 11:26:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:26:48,909 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:48,909 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:48,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:26:48,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:48,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-08-27 11:26:48,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:48,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031368775] [2021-08-27 11:26:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:48,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:48,947 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 11:26:48,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:48,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031368775] [2021-08-27 11:26:48,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031368775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:48,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:48,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:26:48,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264559271] [2021-08-27 11:26:48,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:48,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:48,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:48,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:48,950 INFO L87 Difference]: Start difference. First operand 123 states and 146 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 11:26:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,093 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2021-08-27 11:26:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:49,093 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 11:26:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,098 INFO L225 Difference]: With dead ends: 243 [2021-08-27 11:26:49,099 INFO L226 Difference]: Without dead ends: 139 [2021-08-27 11:26:49,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-08-27 11:26:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2021-08-27 11:26:49,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 102 states have (on average 1.5686274509803921) internal successors, (160), 135 states have internal predecessors, (160), 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 11:26:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 160 transitions. [2021-08-27 11:26:49,108 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 160 transitions. Word has length 7 [2021-08-27 11:26:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,109 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 160 transitions. [2021-08-27 11:26:49,109 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 11:26:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2021-08-27 11:26:49,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:26:49,110 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,110 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 11:26:49,110 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1493296196, now seen corresponding path program 1 times [2021-08-27 11:26:49,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856254112] [2021-08-27 11:26:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,111 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:49,145 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 11:26:49,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:49,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856254112] [2021-08-27 11:26:49,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856254112] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:49,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:49,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:49,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55502194] [2021-08-27 11:26:49,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:49,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:49,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:49,148 INFO L87 Difference]: Start difference. First operand 136 states and 160 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 11:26:49,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,280 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2021-08-27 11:26:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:49,280 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 11:26:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,281 INFO L225 Difference]: With dead ends: 197 [2021-08-27 11:26:49,281 INFO L226 Difference]: Without dead ends: 190 [2021-08-27 11:26:49,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:49,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-08-27 11:26:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 137. [2021-08-27 11:26:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.5) internal successors, (162), 136 states have internal predecessors, (162), 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 11:26:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 162 transitions. [2021-08-27 11:26:49,288 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 162 transitions. Word has length 10 [2021-08-27 11:26:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,289 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 162 transitions. [2021-08-27 11:26:49,289 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 11:26:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 162 transitions. [2021-08-27 11:26:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:26:49,289 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,290 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 11:26:49,290 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,290 INFO L82 PathProgramCache]: Analyzing trace with hash 794034541, now seen corresponding path program 1 times [2021-08-27 11:26:49,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42453341] [2021-08-27 11:26:49,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:49,329 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 11:26:49,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:49,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42453341] [2021-08-27 11:26:49,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42453341] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:49,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:49,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:49,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087146319] [2021-08-27 11:26:49,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:49,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:49,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:49,331 INFO L87 Difference]: Start difference. First operand 137 states and 162 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 11:26:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,368 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2021-08-27 11:26:49,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:49,369 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 11:26:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,370 INFO L225 Difference]: With dead ends: 234 [2021-08-27 11:26:49,370 INFO L226 Difference]: Without dead ends: 100 [2021-08-27 11:26:49,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-08-27 11:26:49,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-08-27 11:26:49,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 99 states have internal predecessors, (118), 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 11:26:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2021-08-27 11:26:49,381 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 10 [2021-08-27 11:26:49,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,381 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2021-08-27 11:26:49,381 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 11:26:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2021-08-27 11:26:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-27 11:26:49,382 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,382 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-27 11:26:49,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,383 INFO L82 PathProgramCache]: Analyzing trace with hash 952458318, now seen corresponding path program 1 times [2021-08-27 11:26:49,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965924361] [2021-08-27 11:26:49,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:49,406 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 11:26:49,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:49,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965924361] [2021-08-27 11:26:49,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965924361] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:49,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:49,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:26:49,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717851485] [2021-08-27 11:26:49,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:26:49,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:49,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:26:49,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:49,409 INFO L87 Difference]: Start difference. First operand 100 states and 118 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 11:26:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,464 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2021-08-27 11:26:49,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:26:49,465 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 11:26:49,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,465 INFO L225 Difference]: With dead ends: 144 [2021-08-27 11:26:49,465 INFO L226 Difference]: Without dead ends: 142 [2021-08-27 11:26:49,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:26:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-27 11:26:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 98. [2021-08-27 11:26:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 97 states have internal predecessors, (116), 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 11:26:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 116 transitions. [2021-08-27 11:26:49,470 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 116 transitions. Word has length 11 [2021-08-27 11:26:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,470 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 116 transitions. [2021-08-27 11:26:49,470 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 11:26:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 116 transitions. [2021-08-27 11:26:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 11:26:49,471 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,471 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 11:26:49,471 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,472 INFO L82 PathProgramCache]: Analyzing trace with hash 348884996, now seen corresponding path program 1 times [2021-08-27 11:26:49,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746299980] [2021-08-27 11:26:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:49,501 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 11:26:49,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:49,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746299980] [2021-08-27 11:26:49,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746299980] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:49,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:49,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:49,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901730895] [2021-08-27 11:26:49,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:49,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:49,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:49,504 INFO L87 Difference]: Start difference. First operand 98 states and 116 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 11:26:49,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,582 INFO L93 Difference]: Finished difference Result 151 states and 176 transitions. [2021-08-27 11:26:49,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:49,583 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 11:26:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,583 INFO L225 Difference]: With dead ends: 151 [2021-08-27 11:26:49,583 INFO L226 Difference]: Without dead ends: 148 [2021-08-27 11:26:49,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-08-27 11:26:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 102. [2021-08-27 11:26:49,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.475609756097561) internal successors, (121), 101 states have internal predecessors, (121), 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 11:26:49,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2021-08-27 11:26:49,588 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 12 [2021-08-27 11:26:49,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,588 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2021-08-27 11:26:49,588 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 11:26:49,588 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2021-08-27 11:26:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:26:49,589 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-27 11:26:49,589 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,590 INFO L82 PathProgramCache]: Analyzing trace with hash -59736963, now seen corresponding path program 1 times [2021-08-27 11:26:49,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943288629] [2021-08-27 11:26:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:26:49,619 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 11:26:49,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:26:49,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943288629] [2021-08-27 11:26:49,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943288629] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:26:49,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:26:49,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:26:49,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49217874] [2021-08-27 11:26:49,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:26:49,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:26:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:26:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:26:49,621 INFO L87 Difference]: Start difference. First operand 102 states and 121 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 11:26:49,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:26:49,691 INFO L93 Difference]: Finished difference Result 155 states and 182 transitions. [2021-08-27 11:26:49,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:26:49,691 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 11:26:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:26:49,692 INFO L225 Difference]: With dead ends: 155 [2021-08-27 11:26:49,692 INFO L226 Difference]: Without dead ends: 153 [2021-08-27 11:26:49,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:26:49,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-08-27 11:26:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 105. [2021-08-27 11:26:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 104 states have internal predecessors, (125), 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 11:26:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2021-08-27 11:26:49,696 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 13 [2021-08-27 11:26:49,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:26:49,696 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2021-08-27 11:26:49,696 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 11:26:49,697 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2021-08-27 11:26:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:26:49,697 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:26:49,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:26:49,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-27 11:26:49,697 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-08-27 11:26:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:26:49,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2067373522, now seen corresponding path program 1 times [2021-08-27 11:26:49,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:26:49,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089195668] [2021-08-27 11:26:49,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:26:49,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:26:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:26:49,713 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 11:26:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 11:26:49,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 11:26:49,731 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 11:26:49,732 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,733 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,734 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,735 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,736 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,738 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,739 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:26:49,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-27 11:26:49,742 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:26:49,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:26:49 BoogieIcfgContainer [2021-08-27 11:26:49,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:26:49,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:26:49,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:26:49,758 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:26:49,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:26:48" (3/4) ... [2021-08-27 11:26:49,760 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 11:26:49,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:26:49,761 INFO L168 Benchmark]: Toolchain (without parser) took 2184.78 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 37.9 MB in the beginning and 55.7 MB in the end (delta: -17.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,761 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 44.0 MB. Free memory was 26.7 MB in the beginning and 26.7 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:26:49,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.52 ms. Allocated memory is still 54.5 MB. Free memory was 37.7 MB in the beginning and 36.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.56 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 33.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,762 INFO L168 Benchmark]: Boogie Preprocessor took 50.26 ms. Allocated memory is still 54.5 MB. Free memory was 33.5 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,763 INFO L168 Benchmark]: RCFGBuilder took 646.93 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.6 MB in the beginning and 46.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,763 INFO L168 Benchmark]: TraceAbstraction took 1118.97 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.7 MB in the beginning and 55.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-08-27 11:26:49,764 INFO L168 Benchmark]: Witness Printer took 2.44 ms. Allocated memory is still 81.8 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:26:49,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 44.0 MB. Free memory was 26.7 MB in the beginning and 26.7 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.52 ms. Allocated memory is still 54.5 MB. Free memory was 37.7 MB in the beginning and 36.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.56 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 33.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.26 ms. Allocated memory is still 54.5 MB. Free memory was 33.5 MB in the beginning and 31.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 646.93 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.6 MB in the beginning and 46.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1118.97 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.7 MB in the beginning and 55.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Witness Printer took 2.44 ms. Allocated memory is still 81.8 MB. Free memory is still 55.7 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: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: 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, 161 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 1059.7ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 9.8ms, AutomataDifference: 590.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 980 SDtfs, 733 SDslu, 436 SDs, 0 SdLazy, 267 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 324.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred 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: 51.9ms AutomataMinimizationTime, 7 MinimizatonAttempts, 194 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.1ms SsaConstructionTime, 68.9ms SatisfiabilityAnalysisTime, 179.1ms 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 11:26:49,795 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...