./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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_4-2a.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 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:56:44,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:56:44,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:56:44,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:56:44,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:56:44,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:56:44,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:56:44,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:56:44,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:56:44,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:56:44,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:56:44,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:56:44,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:56:44,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:56:44,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:56:44,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:56:44,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:56:44,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:56:44,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:56:44,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:56:44,281 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:56:44,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:56:44,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:56:44,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:56:44,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:56:44,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:56:44,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:56:44,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:56:44,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:56:44,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:56:44,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:56:44,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:56:44,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:56:44,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:56:44,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:56:44,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:56:44,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:56:44,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:56:44,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:56:44,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:56:44,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:56:44,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:56:44,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:56:44,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:56:44,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:56:44,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:56:44,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:56:44,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:56:44,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:56:44,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:56:44,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:56:44,325 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:56:44,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:56:44,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:56:44,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:56:44,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:56:44,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:56:44,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:56:44,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:56:44,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:56:44,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:56:44,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:56:44,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:56:44,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:56:44,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:56:44,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:56:44,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:56:44,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:56:44,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:56:44,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:56:44,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:56:44,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2022-07-14 13:56:44,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:56:44,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:56:44,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:56:44,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:56:44,531 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:56:44,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-07-14 13:56:44,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60f846f9/2a86726b17d94d3f934c90d6e4880ae3/FLAG1e7182efb [2022-07-14 13:56:44,972 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:56:44,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-07-14 13:56:44,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60f846f9/2a86726b17d94d3f934c90d6e4880ae3/FLAG1e7182efb [2022-07-14 13:56:45,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a60f846f9/2a86726b17d94d3f934c90d6e4880ae3 [2022-07-14 13:56:45,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:56:45,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:56:45,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:56:45,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:56:45,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:56:45,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52a9a90b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45, skipping insertion in model container [2022-07-14 13:56:45,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:56:45,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:56:45,553 WARN L230 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_4-2a.c.cil.c[755,768] [2022-07-14 13:56:45,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:56:45,624 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:56:45,638 WARN L230 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_4-2a.c.cil.c[755,768] [2022-07-14 13:56:45,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:56:45,697 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:56:45,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45 WrapperNode [2022-07-14 13:56:45,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:56:45,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:56:45,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:56:45,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:56:45,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,737 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-07-14 13:56:45,739 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:56:45,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:56:45,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:56:45,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:56:45,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:56:45,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:56:45,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:56:45,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:56:45,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (1/1) ... [2022-07-14 13:56:45,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:56:45,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:45,810 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) [2022-07-14 13:56:45,819 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 [2022-07-14 13:56:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:56:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:56:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-14 13:56:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-14 13:56:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:56:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:56:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-14 13:56:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-14 13:56:45,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-14 13:56:45,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-14 13:56:45,918 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:56:45,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:56:46,208 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:56:46,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:56:46,213 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 13:56:46,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:56:46 BoogieIcfgContainer [2022-07-14 13:56:46,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:56:46,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:56:46,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:56:46,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:56:46,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:56:45" (1/3) ... [2022-07-14 13:56:46,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed89f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:56:46, skipping insertion in model container [2022-07-14 13:56:46,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:45" (2/3) ... [2022-07-14 13:56:46,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed89f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:56:46, skipping insertion in model container [2022-07-14 13:56:46,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:56:46" (3/3) ... [2022-07-14 13:56:46,224 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2022-07-14 13:56:46,235 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:56:46,236 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-14 13:56:46,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:56:46,279 INFO L357 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, mAutomataTypeConcurrency=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4b03a504, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7cae94bc [2022-07-14 13:56:46,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-14 13:56:46,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 92 states have (on average 1.7717391304347827) internal successors, (163), 112 states have internal predecessors, (163), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-14 13:56:46,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:56:46,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:46,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:46,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:46,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash -475863887, now seen corresponding path program 1 times [2022-07-14 13:56:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:46,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703389100] [2022-07-14 13:56:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:46,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:46,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:46,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703389100] [2022-07-14 13:56:46,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703389100] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:46,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:46,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:56:46,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785235157] [2022-07-14 13:56:46,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:46,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-14 13:56:46,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:46,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-14 13:56:46,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 13:56:46,436 INFO L87 Difference]: Start difference. First operand has 124 states, 92 states have (on average 1.7717391304347827) internal successors, (163), 112 states have internal predecessors, (163), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:46,485 INFO L93 Difference]: Finished difference Result 243 states and 362 transitions. [2022-07-14 13:56:46,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-14 13:56:46,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:56:46,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:46,494 INFO L225 Difference]: With dead ends: 243 [2022-07-14 13:56:46,494 INFO L226 Difference]: Without dead ends: 112 [2022-07-14 13:56:46,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-14 13:56:46,503 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:46,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-14 13:56:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-07-14 13:56:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.5714285714285714) internal successors, (132), 102 states have internal predecessors, (132), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:46,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 145 transitions. [2022-07-14 13:56:46,550 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 145 transitions. Word has length 9 [2022-07-14 13:56:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:46,551 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 145 transitions. [2022-07-14 13:56:46,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 145 transitions. [2022-07-14 13:56:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:56:46,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:46,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:46,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:56:46,554 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:46,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:46,555 INFO L85 PathProgramCache]: Analyzing trace with hash -476805235, now seen corresponding path program 1 times [2022-07-14 13:56:46,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:46,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314472822] [2022-07-14 13:56:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:46,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:46,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:46,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314472822] [2022-07-14 13:56:46,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314472822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:46,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:46,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456400899] [2022-07-14 13:56:46,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:46,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:56:46,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:46,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:56:46,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:46,655 INFO L87 Difference]: Start difference. First operand 112 states and 145 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:46,762 INFO L93 Difference]: Finished difference Result 283 states and 381 transitions. [2022-07-14 13:56:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:56:46,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:56:46,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:46,767 INFO L225 Difference]: With dead ends: 283 [2022-07-14 13:56:46,768 INFO L226 Difference]: Without dead ends: 174 [2022-07-14 13:56:46,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:56:46,772 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 106 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:46,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 385 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-14 13:56:46,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-07-14 13:56:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 132 states have (on average 1.5681818181818181) internal successors, (207), 150 states have internal predecessors, (207), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 220 transitions. [2022-07-14 13:56:46,785 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 220 transitions. Word has length 9 [2022-07-14 13:56:46,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:46,785 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 220 transitions. [2022-07-14 13:56:46,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,786 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 220 transitions. [2022-07-14 13:56:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 13:56:46,786 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:46,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:46,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:56:46,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:46,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1876350822, now seen corresponding path program 1 times [2022-07-14 13:56:46,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:46,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738324553] [2022-07-14 13:56:46,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:46,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:46,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:46,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738324553] [2022-07-14 13:56:46,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738324553] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:46,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:46,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:56:46,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064524737] [2022-07-14 13:56:46,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:46,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:46,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:46,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:46,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:56:46,820 INFO L87 Difference]: Start difference. First operand 161 states and 220 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:46,913 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2022-07-14 13:56:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-14 13:56:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:46,915 INFO L225 Difference]: With dead ends: 196 [2022-07-14 13:56:46,915 INFO L226 Difference]: Without dead ends: 193 [2022-07-14 13:56:46,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:46,921 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 161 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:46,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 515 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-14 13:56:46,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2022-07-14 13:56:46,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 139 states have (on average 1.5683453237410072) internal successors, (218), 157 states have internal predecessors, (218), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:46,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 231 transitions. [2022-07-14 13:56:46,937 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 231 transitions. Word has length 13 [2022-07-14 13:56:46,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:46,937 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 231 transitions. [2022-07-14 13:56:46,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 231 transitions. [2022-07-14 13:56:46,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 13:56:46,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:46,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:46,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:56:46,939 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:46,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:46,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1962666541, now seen corresponding path program 1 times [2022-07-14 13:56:46,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:46,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392827649] [2022-07-14 13:56:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:46,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:46,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392827649] [2022-07-14 13:56:46,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392827649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:46,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:46,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:56:46,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119007900] [2022-07-14 13:56:46,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:46,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:46,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:46,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:56:46,987 INFO L87 Difference]: Start difference. First operand 168 states and 231 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:47,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:47,081 INFO L93 Difference]: Finished difference Result 316 states and 420 transitions. [2022-07-14 13:56:47,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:47,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-14 13:56:47,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:47,084 INFO L225 Difference]: With dead ends: 316 [2022-07-14 13:56:47,084 INFO L226 Difference]: Without dead ends: 203 [2022-07-14 13:56:47,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:47,089 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 165 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:47,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 525 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-14 13:56:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2022-07-14 13:56:47,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 143 states have (on average 1.5454545454545454) internal successors, (221), 161 states have internal predecessors, (221), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 234 transitions. [2022-07-14 13:56:47,107 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 234 transitions. Word has length 14 [2022-07-14 13:56:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:47,107 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 234 transitions. [2022-07-14 13:56:47,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 234 transitions. [2022-07-14 13:56:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 13:56:47,110 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:47,110 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:47,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:56:47,110 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:47,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:47,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2026818261, now seen corresponding path program 1 times [2022-07-14 13:56:47,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:47,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693832670] [2022-07-14 13:56:47,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:47,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:47,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:47,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693832670] [2022-07-14 13:56:47,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693832670] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:47,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230154937] [2022-07-14 13:56:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:47,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:47,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:47,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:47,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:56:47,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:47,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:56:47,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:47,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:47,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:47,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230154937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:47,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:47,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-14 13:56:47,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901703568] [2022-07-14 13:56:47,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:47,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:47,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:47,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:56:47,296 INFO L87 Difference]: Start difference. First operand 172 states and 234 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:47,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:47,379 INFO L93 Difference]: Finished difference Result 242 states and 331 transitions. [2022-07-14 13:56:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:47,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-14 13:56:47,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:47,381 INFO L225 Difference]: With dead ends: 242 [2022-07-14 13:56:47,381 INFO L226 Difference]: Without dead ends: 238 [2022-07-14 13:56:47,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:47,386 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 122 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:47,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 481 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-14 13:56:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 208. [2022-07-14 13:56:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 179 states have (on average 1.5698324022346368) internal successors, (281), 196 states have internal predecessors, (281), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 294 transitions. [2022-07-14 13:56:47,396 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 294 transitions. Word has length 16 [2022-07-14 13:56:47,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:47,396 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 294 transitions. [2022-07-14 13:56:47,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:47,396 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 294 transitions. [2022-07-14 13:56:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 13:56:47,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:47,399 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:47,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 13:56:47,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:47,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:47,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1963115407, now seen corresponding path program 1 times [2022-07-14 13:56:47,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:47,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210991985] [2022-07-14 13:56:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:47,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:47,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210991985] [2022-07-14 13:56:47,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210991985] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200164016] [2022-07-14 13:56:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:47,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:47,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:47,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:47,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:56:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:47,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:56:47,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:47,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:47,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:47,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200164016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:47,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:47,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-14 13:56:47,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860940232] [2022-07-14 13:56:47,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:47,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:56:47,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:47,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:56:47,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:47,701 INFO L87 Difference]: Start difference. First operand 208 states and 294 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:47,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:47,752 INFO L93 Difference]: Finished difference Result 260 states and 365 transitions. [2022-07-14 13:56:47,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:56:47,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 13:56:47,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:47,754 INFO L225 Difference]: With dead ends: 260 [2022-07-14 13:56:47,754 INFO L226 Difference]: Without dead ends: 258 [2022-07-14 13:56:47,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:47,756 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 28 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:47,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 294 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-14 13:56:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 201. [2022-07-14 13:56:47,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 172 states have (on average 1.5465116279069768) internal successors, (266), 189 states have internal predecessors, (266), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 279 transitions. [2022-07-14 13:56:47,764 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 279 transitions. Word has length 15 [2022-07-14 13:56:47,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:47,764 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 279 transitions. [2022-07-14 13:56:47,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:47,764 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 279 transitions. [2022-07-14 13:56:47,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:56:47,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:47,766 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:47,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:47,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-14 13:56:47,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1593143292, now seen corresponding path program 1 times [2022-07-14 13:56:47,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177370538] [2022-07-14 13:56:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 13:56:48,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:48,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177370538] [2022-07-14 13:56:48,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177370538] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:48,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804630696] [2022-07-14 13:56:48,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:48,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:48,009 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:48,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:56:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 13:56:48,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 13:56:48,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:48,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804630696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:48,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:48,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-14 13:56:48,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916783003] [2022-07-14 13:56:48,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:48,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:48,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:48,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:48,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:48,051 INFO L87 Difference]: Start difference. First operand 201 states and 279 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:48,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:48,073 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2022-07-14 13:56:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-14 13:56:48,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:48,074 INFO L225 Difference]: With dead ends: 210 [2022-07-14 13:56:48,074 INFO L226 Difference]: Without dead ends: 209 [2022-07-14 13:56:48,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:48,075 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:48,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 264 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:48,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-14 13:56:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-14 13:56:48,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 170 states have (on average 1.535294117647059) internal successors, (261), 186 states have internal predecessors, (261), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2022-07-14 13:56:48,080 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 274 transitions. Word has length 17 [2022-07-14 13:56:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:48,081 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 274 transitions. [2022-07-14 13:56:48,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 274 transitions. [2022-07-14 13:56:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 13:56:48,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:48,082 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:48,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:48,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:48,299 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:48,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1255353667, now seen corresponding path program 1 times [2022-07-14 13:56:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:48,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396739305] [2022-07-14 13:56:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:48,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:48,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396739305] [2022-07-14 13:56:48,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396739305] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:48,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341878891] [2022-07-14 13:56:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:48,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:48,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:56:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:56:48,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:48,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:48,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:48,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341878891] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:48,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:48,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-14 13:56:48,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667286098] [2022-07-14 13:56:48,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:48,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:48,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:48,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:48,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:56:48,413 INFO L87 Difference]: Start difference. First operand 198 states and 274 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:48,486 INFO L93 Difference]: Finished difference Result 241 states and 328 transitions. [2022-07-14 13:56:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:48,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-14 13:56:48,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:48,487 INFO L225 Difference]: With dead ends: 241 [2022-07-14 13:56:48,488 INFO L226 Difference]: Without dead ends: 238 [2022-07-14 13:56:48,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:48,490 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 107 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:48,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 482 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:48,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-14 13:56:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2022-07-14 13:56:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 178 states have (on average 1.5280898876404494) internal successors, (272), 194 states have internal predecessors, (272), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:48,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 285 transitions. [2022-07-14 13:56:48,498 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 285 transitions. Word has length 18 [2022-07-14 13:56:48,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:48,499 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 285 transitions. [2022-07-14 13:56:48,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 13:56:48,499 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 285 transitions. [2022-07-14 13:56:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 13:56:48,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:48,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:48,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:48,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:48,716 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:48,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1571854273, now seen corresponding path program 1 times [2022-07-14 13:56:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:48,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532919435] [2022-07-14 13:56:48,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 13:56:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:48,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532919435] [2022-07-14 13:56:48,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532919435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:48,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:48,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251421161] [2022-07-14 13:56:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:48,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:56:48,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:48,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:56:48,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:48,740 INFO L87 Difference]: Start difference. First operand 206 states and 285 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:48,784 INFO L93 Difference]: Finished difference Result 261 states and 361 transitions. [2022-07-14 13:56:48,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:56:48,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 13:56:48,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:48,786 INFO L225 Difference]: With dead ends: 261 [2022-07-14 13:56:48,786 INFO L226 Difference]: Without dead ends: 259 [2022-07-14 13:56:48,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:48,786 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 24 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:48,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 401 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-14 13:56:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 206. [2022-07-14 13:56:48,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 178 states have (on average 1.5168539325842696) internal successors, (270), 194 states have internal predecessors, (270), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:48,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 283 transitions. [2022-07-14 13:56:48,794 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 283 transitions. Word has length 19 [2022-07-14 13:56:48,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:48,794 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 283 transitions. [2022-07-14 13:56:48,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 283 transitions. [2022-07-14 13:56:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-14 13:56:48,795 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:48,795 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:48,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 13:56:48,795 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash -159419185, now seen corresponding path program 1 times [2022-07-14 13:56:48,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:48,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736821743] [2022-07-14 13:56:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:56:48,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:48,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736821743] [2022-07-14 13:56:48,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736821743] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:48,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949166009] [2022-07-14 13:56:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:48,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:48,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:48,838 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:48,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:56:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:48,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:56:48,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:56:48,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:48,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949166009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:48,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:48,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-14 13:56:48,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445312681] [2022-07-14 13:56:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:48,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:48,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:48,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:56:48,896 INFO L87 Difference]: Start difference. First operand 206 states and 283 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 13:56:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:48,960 INFO L93 Difference]: Finished difference Result 236 states and 324 transitions. [2022-07-14 13:56:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-14 13:56:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:48,961 INFO L225 Difference]: With dead ends: 236 [2022-07-14 13:56:48,962 INFO L226 Difference]: Without dead ends: 233 [2022-07-14 13:56:48,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:48,962 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:48,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 479 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:48,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-14 13:56:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2022-07-14 13:56:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 169 states have (on average 1.4792899408284024) internal successors, (250), 182 states have internal predecessors, (250), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2022-07-14 13:56:48,969 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 23 [2022-07-14 13:56:48,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:48,969 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2022-07-14 13:56:48,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 13:56:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2022-07-14 13:56:48,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 13:56:48,970 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:48,970 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:48,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:49,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 13:56:49,182 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:49,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:49,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1990531529, now seen corresponding path program 1 times [2022-07-14 13:56:49,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:49,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754609650] [2022-07-14 13:56:49,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:49,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:56:49,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:49,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754609650] [2022-07-14 13:56:49,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754609650] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:49,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267746457] [2022-07-14 13:56:49,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:49,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:49,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:49,217 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:49,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:56:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:56:49,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:56:49,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:49,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267746457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:49,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:49,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-14 13:56:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922630843] [2022-07-14 13:56:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:49,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 13:56:49,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 13:56:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:56:49,276 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 13:56:49,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:49,338 INFO L93 Difference]: Finished difference Result 224 states and 303 transitions. [2022-07-14 13:56:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:56:49,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-14 13:56:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:49,339 INFO L225 Difference]: With dead ends: 224 [2022-07-14 13:56:49,339 INFO L226 Difference]: Without dead ends: 221 [2022-07-14 13:56:49,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:49,340 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 96 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:49,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 485 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-14 13:56:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 183. [2022-07-14 13:56:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 171 states have internal predecessors, (235), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-14 13:56:49,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2022-07-14 13:56:49,346 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 25 [2022-07-14 13:56:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:49,346 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2022-07-14 13:56:49,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 13:56:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2022-07-14 13:56:49,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-14 13:56:49,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:49,346 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:49,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-14 13:56:49,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:49,559 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:49,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash 962021647, now seen corresponding path program 1 times [2022-07-14 13:56:49,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:49,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748712474] [2022-07-14 13:56:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 13:56:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:49,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748712474] [2022-07-14 13:56:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748712474] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161875492] [2022-07-14 13:56:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:49,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:49,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:49,655 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:49,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 13:56:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:49,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-14 13:56:49,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 13:56:49,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:49,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161875492] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:49,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:49,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 19 [2022-07-14 13:56:49,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742800000] [2022-07-14 13:56:49,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:49,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 13:56:49,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 13:56:49,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:56:49,868 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:56:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:50,932 INFO L93 Difference]: Finished difference Result 601 states and 801 transitions. [2022-07-14 13:56:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 13:56:50,932 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-07-14 13:56:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:50,934 INFO L225 Difference]: With dead ends: 601 [2022-07-14 13:56:50,934 INFO L226 Difference]: Without dead ends: 423 [2022-07-14 13:56:50,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=187, Invalid=1145, Unknown=0, NotChecked=0, Total=1332 [2022-07-14 13:56:50,935 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 638 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:50,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 636 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 13:56:50,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-14 13:56:50,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 155. [2022-07-14 13:56:50,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 129 states have (on average 1.426356589147287) internal successors, (184), 140 states have internal predecessors, (184), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-14 13:56:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 202 transitions. [2022-07-14 13:56:50,944 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 202 transitions. Word has length 30 [2022-07-14 13:56:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:50,944 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 202 transitions. [2022-07-14 13:56:50,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:56:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 202 transitions. [2022-07-14 13:56:50,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-14 13:56:50,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:50,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:50,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:51,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:51,161 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:51,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:51,161 INFO L85 PathProgramCache]: Analyzing trace with hash 217587920, now seen corresponding path program 1 times [2022-07-14 13:56:51,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:51,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942400335] [2022-07-14 13:56:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:51,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 13:56:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,226 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:51,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:51,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942400335] [2022-07-14 13:56:51,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942400335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:51,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:51,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 13:56:51,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930347959] [2022-07-14 13:56:51,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:51,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 13:56:51,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:51,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 13:56:51,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:56:51,228 INFO L87 Difference]: Start difference. First operand 155 states and 202 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:56:51,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:51,628 INFO L93 Difference]: Finished difference Result 404 states and 517 transitions. [2022-07-14 13:56:51,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 13:56:51,628 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-14 13:56:51,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:51,630 INFO L225 Difference]: With dead ends: 404 [2022-07-14 13:56:51,630 INFO L226 Difference]: Without dead ends: 330 [2022-07-14 13:56:51,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-14 13:56:51,630 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 486 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:51,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 501 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 13:56:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-14 13:56:51,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 166. [2022-07-14 13:56:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 137 states have (on average 1.4014598540145986) internal successors, (192), 149 states have internal predecessors, (192), 10 states have call successors, (10), 7 states have call predecessors, (10), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-07-14 13:56:51,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 214 transitions. [2022-07-14 13:56:51,638 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 214 transitions. Word has length 37 [2022-07-14 13:56:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:51,638 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 214 transitions. [2022-07-14 13:56:51,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:56:51,638 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 214 transitions. [2022-07-14 13:56:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-14 13:56:51,639 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:51,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:51,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 13:56:51,639 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:51,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:51,639 INFO L85 PathProgramCache]: Analyzing trace with hash -394807024, now seen corresponding path program 1 times [2022-07-14 13:56:51,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:51,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251236253] [2022-07-14 13:56:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:51,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 13:56:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 13:56:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:51,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:51,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251236253] [2022-07-14 13:56:51,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251236253] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:51,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842708278] [2022-07-14 13:56:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:51,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:51,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:51,728 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:51,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 13:56:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:51,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 13:56:51,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:51,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:51,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842708278] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:51,934 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:51,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2022-07-14 13:56:51,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751129669] [2022-07-14 13:56:51,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:51,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 13:56:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 13:56:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:56:51,935 INFO L87 Difference]: Start difference. First operand 166 states and 214 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 13:56:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:53,983 INFO L93 Difference]: Finished difference Result 793 states and 1009 transitions. [2022-07-14 13:56:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-14 13:56:53,984 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 41 [2022-07-14 13:56:53,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:53,986 INFO L225 Difference]: With dead ends: 793 [2022-07-14 13:56:53,986 INFO L226 Difference]: Without dead ends: 704 [2022-07-14 13:56:53,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2022-07-14 13:56:53,987 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1236 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:53,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 407 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 13:56:53,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-14 13:56:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 153. [2022-07-14 13:56:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 128 states have (on average 1.40625) internal successors, (180), 139 states have internal predecessors, (180), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-14 13:56:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 196 transitions. [2022-07-14 13:56:53,997 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 196 transitions. Word has length 41 [2022-07-14 13:56:53,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:53,998 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 196 transitions. [2022-07-14 13:56:53,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 13:56:53,998 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 196 transitions. [2022-07-14 13:56:53,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-14 13:56:53,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:53,998 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:54,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-14 13:56:54,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 13:56:54,212 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:54,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:54,212 INFO L85 PathProgramCache]: Analyzing trace with hash -264308223, now seen corresponding path program 2 times [2022-07-14 13:56:54,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:54,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034269509] [2022-07-14 13:56:54,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:54,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 13:56:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:54,341 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 13:56:54,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:54,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034269509] [2022-07-14 13:56:54,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034269509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:54,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:54,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 13:56:54,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102457262] [2022-07-14 13:56:54,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:54,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:56:54,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:54,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:56:54,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 13:56:54,344 INFO L87 Difference]: Start difference. First operand 153 states and 196 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:56:55,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:55,080 INFO L93 Difference]: Finished difference Result 480 states and 614 transitions. [2022-07-14 13:56:55,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 13:56:55,081 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-14 13:56:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:55,083 INFO L225 Difference]: With dead ends: 480 [2022-07-14 13:56:55,083 INFO L226 Difference]: Without dead ends: 410 [2022-07-14 13:56:55,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-14 13:56:55,084 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 641 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:55,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 707 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 13:56:55,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-14 13:56:55,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 227. [2022-07-14 13:56:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 197 states have (on average 1.4060913705583757) internal successors, (277), 209 states have internal predecessors, (277), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-14 13:56:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2022-07-14 13:56:55,097 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 41 [2022-07-14 13:56:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:55,098 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2022-07-14 13:56:55,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:56:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2022-07-14 13:56:55,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-14 13:56:55,098 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 13:56:55,099 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:55,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1073654849, now seen corresponding path program 1 times [2022-07-14 13:56:55,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560899500] [2022-07-14 13:56:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:55,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 13:56:55,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 13:56:55,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560899500] [2022-07-14 13:56:55,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560899500] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:55,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606769182] [2022-07-14 13:56:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:55,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:55,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 13:56:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 13:56:55,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:55,300 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 13:56:55,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:55,438 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-14 13:56:55,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606769182] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:55,439 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:55,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2022-07-14 13:56:55,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011687620] [2022-07-14 13:56:55,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:55,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 13:56:55,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:55,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 13:56:55,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-14 13:56:55,440 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-14 13:56:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:56,197 INFO L93 Difference]: Finished difference Result 624 states and 834 transitions. [2022-07-14 13:56:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 13:56:56,197 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-07-14 13:56:56,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:56,199 INFO L225 Difference]: With dead ends: 624 [2022-07-14 13:56:56,199 INFO L226 Difference]: Without dead ends: 492 [2022-07-14 13:56:56,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2022-07-14 13:56:56,200 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 607 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:56,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 625 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-14 13:56:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-14 13:56:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 338. [2022-07-14 13:56:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 311 states have internal predecessors, (418), 18 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (22), 17 states have call predecessors, (22), 17 states have call successors, (22) [2022-07-14 13:56:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 458 transitions. [2022-07-14 13:56:56,214 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 458 transitions. Word has length 41 [2022-07-14 13:56:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:56,214 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 458 transitions. [2022-07-14 13:56:56,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-14 13:56:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 458 transitions. [2022-07-14 13:56:56,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 13:56:56,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:56,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:56,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:56,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 13:56:56,433 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:56,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1708184769, now seen corresponding path program 1 times [2022-07-14 13:56:56,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:56,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890067452] [2022-07-14 13:56:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:56,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 13:56:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:56:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:56,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:56,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890067452] [2022-07-14 13:56:56,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890067452] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:56,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101244857] [2022-07-14 13:56:56,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:56,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:56,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:56,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 13:56:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-14 13:56:56,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-14 13:56:56,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:56,718 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-14 13:56:56,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101244857] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:56,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-14 13:56:56,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 11] total 20 [2022-07-14 13:56:56,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484556906] [2022-07-14 13:56:56,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 13:56:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 13:56:56,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-14 13:56:56,720 INFO L87 Difference]: Start difference. First operand 338 states and 458 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 13:56:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:56,887 INFO L93 Difference]: Finished difference Result 695 states and 947 transitions. [2022-07-14 13:56:56,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 13:56:56,888 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2022-07-14 13:56:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:56,890 INFO L225 Difference]: With dead ends: 695 [2022-07-14 13:56:56,890 INFO L226 Difference]: Without dead ends: 607 [2022-07-14 13:56:56,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-07-14 13:56:56,891 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 166 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:56,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1813 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:56,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-14 13:56:56,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 327. [2022-07-14 13:56:56,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 290 states have (on average 1.4068965517241379) internal successors, (408), 302 states have internal predecessors, (408), 17 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2022-07-14 13:56:56,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 444 transitions. [2022-07-14 13:56:56,906 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 444 transitions. Word has length 45 [2022-07-14 13:56:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:56,906 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 444 transitions. [2022-07-14 13:56:56,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 13:56:56,907 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 444 transitions. [2022-07-14 13:56:56,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 13:56:56,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:56,907 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:56,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:57,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-14 13:56:57,123 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:57,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1609884674, now seen corresponding path program 1 times [2022-07-14 13:56:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790938321] [2022-07-14 13:56:57,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 13:56:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:56:57,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790938321] [2022-07-14 13:56:57,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790938321] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:57,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86280925] [2022-07-14 13:56:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:57,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:57,147 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:57,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 13:56:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 13:56:57,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:56:57,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:57,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86280925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:57,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:57,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-14 13:56:57,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771974789] [2022-07-14 13:56:57,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:57,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:57,197 INFO L87 Difference]: Start difference. First operand 327 states and 444 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:56:57,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,229 INFO L93 Difference]: Finished difference Result 586 states and 797 transitions. [2022-07-14 13:56:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:57,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-07-14 13:56:57,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,230 INFO L225 Difference]: With dead ends: 586 [2022-07-14 13:56:57,230 INFO L226 Difference]: Without dead ends: 351 [2022-07-14 13:56:57,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:56:57,231 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 10 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 244 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-14 13:56:57,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 337. [2022-07-14 13:56:57,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 300 states have (on average 1.3933333333333333) internal successors, (418), 312 states have internal predecessors, (418), 17 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2022-07-14 13:56:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 454 transitions. [2022-07-14 13:56:57,244 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 454 transitions. Word has length 47 [2022-07-14 13:56:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,244 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 454 transitions. [2022-07-14 13:56:57,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:56:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 454 transitions. [2022-07-14 13:56:57,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 13:56:57,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,245 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:57,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:57,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 13:56:57,461 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:57,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1216283857, now seen corresponding path program 1 times [2022-07-14 13:56:57,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939663791] [2022-07-14 13:56:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:56:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:56:57,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939663791] [2022-07-14 13:56:57,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939663791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:57,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26500661] [2022-07-14 13:56:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:57,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:57,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:57,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 13:56:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 13:56:57,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:57,644 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:56:57,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:56:57,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26500661] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:57,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:57,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2022-07-14 13:56:57,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038638438] [2022-07-14 13:56:57,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:56:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:56:57,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-14 13:56:57,711 INFO L87 Difference]: Start difference. First operand 337 states and 454 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:56:58,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:58,778 INFO L93 Difference]: Finished difference Result 1032 states and 1398 transitions. [2022-07-14 13:56:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 13:56:58,787 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-14 13:56:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:58,790 INFO L225 Difference]: With dead ends: 1032 [2022-07-14 13:56:58,790 INFO L226 Difference]: Without dead ends: 919 [2022-07-14 13:56:58,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-07-14 13:56:58,791 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 370 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:58,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 838 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 13:56:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-14 13:56:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 475. [2022-07-14 13:56:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 428 states have (on average 1.4042056074766356) internal successors, (601), 441 states have internal predecessors, (601), 24 states have call successors, (24), 10 states have call predecessors, (24), 13 states have return successors, (28), 23 states have call predecessors, (28), 23 states have call successors, (28) [2022-07-14 13:56:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 653 transitions. [2022-07-14 13:56:58,810 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 653 transitions. Word has length 48 [2022-07-14 13:56:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:58,810 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 653 transitions. [2022-07-14 13:56:58,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:56:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 653 transitions. [2022-07-14 13:56:58,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 13:56:58,811 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:58,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:58,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:59,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:59,028 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:56:59,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1216281935, now seen corresponding path program 1 times [2022-07-14 13:56:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:59,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836498445] [2022-07-14 13:56:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:56:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:56:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:56:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:56:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:59,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836498445] [2022-07-14 13:56:59,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836498445] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:59,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815496274] [2022-07-14 13:56:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:59,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:59,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:59,096 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:59,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 13:56:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 13:56:59,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:59,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 13:56:59,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 13:56:59,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815496274] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:59,384 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:59,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 19 [2022-07-14 13:56:59,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216770425] [2022-07-14 13:56:59,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:59,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 13:56:59,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:59,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 13:56:59,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:56:59,385 INFO L87 Difference]: Start difference. First operand 475 states and 653 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:57:00,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:00,446 INFO L93 Difference]: Finished difference Result 1166 states and 1605 transitions. [2022-07-14 13:57:00,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-14 13:57:00,447 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48 [2022-07-14 13:57:00,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:00,449 INFO L225 Difference]: With dead ends: 1166 [2022-07-14 13:57:00,449 INFO L226 Difference]: Without dead ends: 959 [2022-07-14 13:57:00,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 13:57:00,451 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 621 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:00,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 457 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 13:57:00,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-14 13:57:00,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 605. [2022-07-14 13:57:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 548 states have (on average 1.4105839416058394) internal successors, (773), 562 states have internal predecessors, (773), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-14 13:57:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 841 transitions. [2022-07-14 13:57:00,477 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 841 transitions. Word has length 48 [2022-07-14 13:57:00,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:00,478 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 841 transitions. [2022-07-14 13:57:00,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:57:00,478 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 841 transitions. [2022-07-14 13:57:00,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-14 13:57:00,479 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:00,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:00,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:00,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-14 13:57:00,695 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:00,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1743227838, now seen corresponding path program 1 times [2022-07-14 13:57:00,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:00,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826708791] [2022-07-14 13:57:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:00,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-14 13:57:00,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:00,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826708791] [2022-07-14 13:57:00,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826708791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:00,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094410441] [2022-07-14 13:57:00,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:00,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:00,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:00,771 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:00,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-14 13:57:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 13:57:00,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:57:00,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:00,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094410441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:00,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:00,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-14 13:57:00,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617582251] [2022-07-14 13:57:00,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:00,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:00,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:00,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:00,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:00,840 INFO L87 Difference]: Start difference. First operand 605 states and 841 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:57:00,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:00,912 INFO L93 Difference]: Finished difference Result 1197 states and 1683 transitions. [2022-07-14 13:57:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-14 13:57:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:00,915 INFO L225 Difference]: With dead ends: 1197 [2022-07-14 13:57:00,915 INFO L226 Difference]: Without dead ends: 681 [2022-07-14 13:57:00,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:00,917 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 50 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:00,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-14 13:57:00,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 631. [2022-07-14 13:57:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 574 states have (on average 1.4024390243902438) internal successors, (805), 588 states have internal predecessors, (805), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-14 13:57:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 873 transitions. [2022-07-14 13:57:00,943 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 873 transitions. Word has length 48 [2022-07-14 13:57:00,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:00,944 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 873 transitions. [2022-07-14 13:57:00,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:57:00,944 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 873 transitions. [2022-07-14 13:57:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 13:57:00,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:00,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:00,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:01,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:01,156 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:01,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1386457629, now seen corresponding path program 1 times [2022-07-14 13:57:01,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:01,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576878213] [2022-07-14 13:57:01,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:01,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 13:57:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:01,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:01,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576878213] [2022-07-14 13:57:01,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576878213] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:01,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86008507] [2022-07-14 13:57:01,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:01,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:01,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:01,201 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:01,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-14 13:57:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:01,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-14 13:57:01,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:01,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86008507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:01,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:01,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-14 13:57:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294755816] [2022-07-14 13:57:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:01,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:57:01,257 INFO L87 Difference]: Start difference. First operand 631 states and 873 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:57:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:01,305 INFO L93 Difference]: Finished difference Result 1025 states and 1427 transitions. [2022-07-14 13:57:01,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 13:57:01,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-07-14 13:57:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:01,307 INFO L225 Difference]: With dead ends: 1025 [2022-07-14 13:57:01,307 INFO L226 Difference]: Without dead ends: 653 [2022-07-14 13:57:01,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:01,309 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 15 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:01,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 375 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-14 13:57:01,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 633. [2022-07-14 13:57:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 576 states have (on average 1.4045138888888888) internal successors, (809), 590 states have internal predecessors, (809), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-14 13:57:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 877 transitions. [2022-07-14 13:57:01,335 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 877 transitions. Word has length 49 [2022-07-14 13:57:01,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:01,335 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 877 transitions. [2022-07-14 13:57:01,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-14 13:57:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 877 transitions. [2022-07-14 13:57:01,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 13:57:01,337 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:01,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:01,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:01,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:01,551 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1853774476, now seen corresponding path program 1 times [2022-07-14 13:57:01,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:01,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340397266] [2022-07-14 13:57:01,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:01,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 13:57:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,758 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:01,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:01,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340397266] [2022-07-14 13:57:01,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340397266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:01,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:01,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 13:57:01,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791353612] [2022-07-14 13:57:01,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:01,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:57:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:57:01,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:57:01,760 INFO L87 Difference]: Start difference. First operand 633 states and 877 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:02,708 INFO L93 Difference]: Finished difference Result 1068 states and 1482 transitions. [2022-07-14 13:57:02,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 13:57:02,709 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-14 13:57:02,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:02,712 INFO L225 Difference]: With dead ends: 1068 [2022-07-14 13:57:02,712 INFO L226 Difference]: Without dead ends: 1067 [2022-07-14 13:57:02,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:57:02,713 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 742 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:02,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 525 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 13:57:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-07-14 13:57:02,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 629. [2022-07-14 13:57:02,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 572 states have (on average 1.4038461538461537) internal successors, (803), 586 states have internal predecessors, (803), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-14 13:57:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 871 transitions. [2022-07-14 13:57:02,751 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 871 transitions. Word has length 50 [2022-07-14 13:57:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:02,751 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 871 transitions. [2022-07-14 13:57:02,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 871 transitions. [2022-07-14 13:57:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 13:57:02,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:02,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:02,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-14 13:57:02,753 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:02,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash -80005234, now seen corresponding path program 1 times [2022-07-14 13:57:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:02,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972320088] [2022-07-14 13:57:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:02,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 13:57:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 13:57:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,886 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:02,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:02,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972320088] [2022-07-14 13:57:02,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972320088] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:02,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861214815] [2022-07-14 13:57:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:02,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:02,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:02,889 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:02,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-14 13:57:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:02,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 13:57:02,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:03,018 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 13:57:03,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 13:57:03,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861214815] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:03,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:03,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-07-14 13:57:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566533266] [2022-07-14 13:57:03,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:03,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 13:57:03,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:03,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 13:57:03,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:57:03,081 INFO L87 Difference]: Start difference. First operand 629 states and 871 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 13:57:07,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,927 INFO L93 Difference]: Finished difference Result 3384 states and 4841 transitions. [2022-07-14 13:57:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-14 13:57:07,928 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2022-07-14 13:57:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,936 INFO L225 Difference]: With dead ends: 3384 [2022-07-14 13:57:07,937 INFO L226 Difference]: Without dead ends: 2998 [2022-07-14 13:57:07,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=512, Invalid=2794, Unknown=0, NotChecked=0, Total=3306 [2022-07-14 13:57:07,940 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2252 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 8794 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 9074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 8794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 736 Invalid, 9074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 8794 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-14 13:57:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-07-14 13:57:07,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 685. [2022-07-14 13:57:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 625 states have (on average 1.3952) internal successors, (872), 638 states have internal predecessors, (872), 34 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (39), 33 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-14 13:57:07,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 945 transitions. [2022-07-14 13:57:07,993 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 945 transitions. Word has length 56 [2022-07-14 13:57:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,993 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 945 transitions. [2022-07-14 13:57:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 13:57:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 945 transitions. [2022-07-14 13:57:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 13:57:07,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:08,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:08,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-14 13:57:08,219 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 39567138, now seen corresponding path program 1 times [2022-07-14 13:57:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:08,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518119999] [2022-07-14 13:57:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 13:57:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:08,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:08,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518119999] [2022-07-14 13:57:08,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518119999] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:08,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044535412] [2022-07-14 13:57:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:08,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:08,302 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:08,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-14 13:57:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 13:57:08,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:08,388 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:08,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:08,440 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:08,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044535412] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:08,441 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:08,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-07-14 13:57:08,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137141069] [2022-07-14 13:57:08,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 13:57:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 13:57:08,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-14 13:57:08,442 INFO L87 Difference]: Start difference. First operand 685 states and 945 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 13:57:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:10,668 INFO L93 Difference]: Finished difference Result 2890 states and 4114 transitions. [2022-07-14 13:57:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-14 13:57:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-14 13:57:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:10,675 INFO L225 Difference]: With dead ends: 2890 [2022-07-14 13:57:10,676 INFO L226 Difference]: Without dead ends: 2755 [2022-07-14 13:57:10,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 13:57:10,677 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 754 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:10,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 695 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 13:57:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-14 13:57:10,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 708. [2022-07-14 13:57:10,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 647 states have (on average 1.3910355486862442) internal successors, (900), 659 states have internal predecessors, (900), 35 states have call successors, (35), 14 states have call predecessors, (35), 16 states have return successors, (39), 34 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-14 13:57:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 974 transitions. [2022-07-14 13:57:10,731 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 974 transitions. Word has length 56 [2022-07-14 13:57:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 974 transitions. [2022-07-14 13:57:10,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-14 13:57:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 974 transitions. [2022-07-14 13:57:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 13:57:10,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:10,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:10,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:10,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:10,947 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:10,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:10,948 INFO L85 PathProgramCache]: Analyzing trace with hash 39569060, now seen corresponding path program 1 times [2022-07-14 13:57:10,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:10,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691550199] [2022-07-14 13:57:10,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 13:57:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:11,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:11,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691550199] [2022-07-14 13:57:11,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691550199] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:11,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149972005] [2022-07-14 13:57:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:11,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:11,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:11,013 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:11,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-14 13:57:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 13:57:11,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:11,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 13:57:11,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 13:57:11,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149972005] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:11,312 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:11,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-07-14 13:57:11,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590115827] [2022-07-14 13:57:11,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:11,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-14 13:57:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-14 13:57:11,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-14 13:57:11,313 INFO L87 Difference]: Start difference. First operand 708 states and 974 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 13:57:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:13,922 INFO L93 Difference]: Finished difference Result 2445 states and 3394 transitions. [2022-07-14 13:57:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-14 13:57:13,923 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2022-07-14 13:57:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:13,928 INFO L225 Difference]: With dead ends: 2445 [2022-07-14 13:57:13,928 INFO L226 Difference]: Without dead ends: 2314 [2022-07-14 13:57:13,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2022-07-14 13:57:13,930 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1392 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5507 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 5507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:13,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 448 Invalid, 5704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 5507 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-14 13:57:13,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-07-14 13:57:13,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 724. [2022-07-14 13:57:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 662 states have (on average 1.3882175226586102) internal successors, (919), 673 states have internal predecessors, (919), 36 states have call successors, (36), 15 states have call predecessors, (36), 16 states have return successors, (39), 35 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-14 13:57:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 994 transitions. [2022-07-14 13:57:13,971 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 994 transitions. Word has length 56 [2022-07-14 13:57:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:13,971 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 994 transitions. [2022-07-14 13:57:13,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-14 13:57:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 994 transitions. [2022-07-14 13:57:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 13:57:13,972 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:13,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:13,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:14,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:14,186 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:14,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:14,187 INFO L85 PathProgramCache]: Analyzing trace with hash -769779488, now seen corresponding path program 2 times [2022-07-14 13:57:14,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:14,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899281470] [2022-07-14 13:57:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:14,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 13:57:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,297 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:14,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:14,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899281470] [2022-07-14 13:57:14,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899281470] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:14,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066666483] [2022-07-14 13:57:14,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:14,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:14,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:14,298 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:14,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-14 13:57:14,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:14,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:14,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 13:57:14,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 13:57:14,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:14,518 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 13:57:14,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066666483] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:14,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:14,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2022-07-14 13:57:14,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756586559] [2022-07-14 13:57:14,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:14,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 13:57:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 13:57:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:57:14,519 INFO L87 Difference]: Start difference. First operand 724 states and 994 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 13:57:18,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:18,028 INFO L93 Difference]: Finished difference Result 2693 states and 3735 transitions. [2022-07-14 13:57:18,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-14 13:57:18,029 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-07-14 13:57:18,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:18,034 INFO L225 Difference]: With dead ends: 2693 [2022-07-14 13:57:18,034 INFO L226 Difference]: Without dead ends: 2323 [2022-07-14 13:57:18,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=332, Invalid=1738, Unknown=0, NotChecked=0, Total=2070 [2022-07-14 13:57:18,037 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1862 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 6511 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 6762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 6511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:18,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 561 Invalid, 6762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 6511 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 13:57:18,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-14 13:57:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 736. [2022-07-14 13:57:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 671 states have (on average 1.3740685543964233) internal successors, (922), 679 states have internal predecessors, (922), 39 states have call successors, (39), 18 states have call predecessors, (39), 16 states have return successors, (39), 38 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-14 13:57:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1000 transitions. [2022-07-14 13:57:18,091 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1000 transitions. Word has length 56 [2022-07-14 13:57:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:18,091 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1000 transitions. [2022-07-14 13:57:18,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 13:57:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1000 transitions. [2022-07-14 13:57:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 13:57:18,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:18,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:18,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:18,311 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:18,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:18,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1350874477, now seen corresponding path program 1 times [2022-07-14 13:57:18,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:18,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768210856] [2022-07-14 13:57:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-14 13:57:18,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:18,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768210856] [2022-07-14 13:57:18,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768210856] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:18,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:18,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 13:57:18,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911520121] [2022-07-14 13:57:18,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:18,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:18,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:18,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:18,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:18,341 INFO L87 Difference]: Start difference. First operand 736 states and 1000 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:18,453 INFO L93 Difference]: Finished difference Result 1121 states and 1511 transitions. [2022-07-14 13:57:18,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:18,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-14 13:57:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:18,457 INFO L225 Difference]: With dead ends: 1121 [2022-07-14 13:57:18,457 INFO L226 Difference]: Without dead ends: 866 [2022-07-14 13:57:18,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:57:18,459 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 148 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:18,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 209 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-07-14 13:57:18,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 766. [2022-07-14 13:57:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 701 states have (on average 1.3823109843081312) internal successors, (969), 709 states have internal predecessors, (969), 39 states have call successors, (39), 18 states have call predecessors, (39), 16 states have return successors, (39), 38 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-14 13:57:18,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1047 transitions. [2022-07-14 13:57:18,498 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1047 transitions. Word has length 55 [2022-07-14 13:57:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:18,498 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1047 transitions. [2022-07-14 13:57:18,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1047 transitions. [2022-07-14 13:57:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 13:57:18,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:18,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:18,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-14 13:57:18,499 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:18,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:18,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1823799633, now seen corresponding path program 1 times [2022-07-14 13:57:18,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:18,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120222398] [2022-07-14 13:57:18,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:18,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:18,568 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 13:57:18,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:18,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120222398] [2022-07-14 13:57:18,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120222398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:18,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:18,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 13:57:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565083928] [2022-07-14 13:57:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:18,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:57:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:18,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:57:18,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:57:18,569 INFO L87 Difference]: Start difference. First operand 766 states and 1047 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:19,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:19,622 INFO L93 Difference]: Finished difference Result 2285 states and 3286 transitions. [2022-07-14 13:57:19,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 13:57:19,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-14 13:57:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:19,627 INFO L225 Difference]: With dead ends: 2285 [2022-07-14 13:57:19,628 INFO L226 Difference]: Without dead ends: 2053 [2022-07-14 13:57:19,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-07-14 13:57:19,629 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 496 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:19,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 798 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 13:57:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-07-14 13:57:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 951. [2022-07-14 13:57:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 873 states have (on average 1.399770904925544) internal successors, (1222), 882 states have internal predecessors, (1222), 48 states have call successors, (48), 21 states have call predecessors, (48), 20 states have return successors, (52), 47 states have call predecessors, (52), 41 states have call successors, (52) [2022-07-14 13:57:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1322 transitions. [2022-07-14 13:57:19,686 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1322 transitions. Word has length 55 [2022-07-14 13:57:19,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:19,686 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1322 transitions. [2022-07-14 13:57:19,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1322 transitions. [2022-07-14 13:57:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 13:57:19,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:19,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:19,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-14 13:57:19,688 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:19,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:19,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1823797711, now seen corresponding path program 1 times [2022-07-14 13:57:19,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:19,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019108868] [2022-07-14 13:57:19,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:19,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:19,741 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 13:57:19,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:19,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019108868] [2022-07-14 13:57:19,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019108868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:19,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:19,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 13:57:19,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085202399] [2022-07-14 13:57:19,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:19,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 13:57:19,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 13:57:19,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-14 13:57:19,743 INFO L87 Difference]: Start difference. First operand 951 states and 1322 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:20,447 INFO L93 Difference]: Finished difference Result 2622 states and 3793 transitions. [2022-07-14 13:57:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-14 13:57:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-14 13:57:20,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:20,453 INFO L225 Difference]: With dead ends: 2622 [2022-07-14 13:57:20,453 INFO L226 Difference]: Without dead ends: 2158 [2022-07-14 13:57:20,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-14 13:57:20,455 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 912 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:20,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 545 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-14 13:57:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-14 13:57:20,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1146. [2022-07-14 13:57:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1055 states have (on average 1.4075829383886256) internal successors, (1485), 1065 states have internal predecessors, (1485), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (64), 56 states have call predecessors, (64), 50 states have call successors, (64) [2022-07-14 13:57:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1606 transitions. [2022-07-14 13:57:20,527 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1606 transitions. Word has length 55 [2022-07-14 13:57:20,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:20,527 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1606 transitions. [2022-07-14 13:57:20,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1606 transitions. [2022-07-14 13:57:20,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 13:57:20,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:20,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:20,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-14 13:57:20,529 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash 601890762, now seen corresponding path program 1 times [2022-07-14 13:57:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:20,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898695853] [2022-07-14 13:57:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:20,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 13:57:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 13:57:20,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:20,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898695853] [2022-07-14 13:57:20,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898695853] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:20,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031517491] [2022-07-14 13:57:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:20,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:20,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:20,637 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:20,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-14 13:57:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:20,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-14 13:57:20,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:20,779 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 13:57:20,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 13:57:20,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031517491] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:20,930 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:20,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 22 [2022-07-14 13:57:20,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615669831] [2022-07-14 13:57:20,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:20,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 13:57:20,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 13:57:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-14 13:57:20,933 INFO L87 Difference]: Start difference. First operand 1146 states and 1606 transitions. Second operand has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:57:21,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:21,824 INFO L93 Difference]: Finished difference Result 1353 states and 1857 transitions. [2022-07-14 13:57:21,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-14 13:57:21,824 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2022-07-14 13:57:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:21,827 INFO L225 Difference]: With dead ends: 1353 [2022-07-14 13:57:21,827 INFO L226 Difference]: Without dead ends: 1096 [2022-07-14 13:57:21,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=1100, Unknown=0, NotChecked=0, Total=1260 [2022-07-14 13:57:21,828 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 249 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:21,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 711 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 13:57:21,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-14 13:57:21,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 959. [2022-07-14 13:57:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 883 states have (on average 1.3963759909399773) internal successors, (1233), 893 states have internal predecessors, (1233), 46 states have call successors, (46), 20 states have call predecessors, (46), 20 states have return successors, (51), 45 states have call predecessors, (51), 40 states have call successors, (51) [2022-07-14 13:57:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1330 transitions. [2022-07-14 13:57:21,876 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1330 transitions. Word has length 57 [2022-07-14 13:57:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:21,876 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1330 transitions. [2022-07-14 13:57:21,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-14 13:57:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1330 transitions. [2022-07-14 13:57:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 13:57:21,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:21,877 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:21,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-14 13:57:22,091 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:22,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash -796225912, now seen corresponding path program 1 times [2022-07-14 13:57:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:22,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646405948] [2022-07-14 13:57:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 13:57:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 13:57:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-14 13:57:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 13:57:22,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:22,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646405948] [2022-07-14 13:57:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646405948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:22,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:22,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 13:57:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396730000] [2022-07-14 13:57:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:22,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 13:57:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 13:57:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:57:22,193 INFO L87 Difference]: Start difference. First operand 959 states and 1330 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:22,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:22,645 INFO L93 Difference]: Finished difference Result 1256 states and 1715 transitions. [2022-07-14 13:57:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 13:57:22,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-14 13:57:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:22,648 INFO L225 Difference]: With dead ends: 1256 [2022-07-14 13:57:22,648 INFO L226 Difference]: Without dead ends: 914 [2022-07-14 13:57:22,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-07-14 13:57:22,649 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 160 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:22,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 561 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-14 13:57:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-07-14 13:57:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 835. [2022-07-14 13:57:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 768 states have (on average 1.38671875) internal successors, (1065), 777 states have internal predecessors, (1065), 40 states have call successors, (40), 18 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 34 states have call successors, (42) [2022-07-14 13:57:22,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1147 transitions. [2022-07-14 13:57:22,688 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1147 transitions. Word has length 57 [2022-07-14 13:57:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:22,688 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1147 transitions. [2022-07-14 13:57:22,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-14 13:57:22,688 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1147 transitions. [2022-07-14 13:57:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-14 13:57:22,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:22,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-14 13:57:22,689 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-14 13:57:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash 650785573, now seen corresponding path program 1 times [2022-07-14 13:57:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:22,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478889295] [2022-07-14 13:57:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:57:22,715 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 13:57:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 13:57:22,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 13:57:22,749 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-14 13:57:22,750 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-14 13:57:22,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-14 13:57:22,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-14 13:57:22,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-14 13:57:22,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-14 13:57:22,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-14 13:57:22,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-14 13:57:22,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-14 13:57:22,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-14 13:57:22,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-14 13:57:22,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-14 13:57:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-14 13:57:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-14 13:57:22,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-14 13:57:22,757 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:22,759 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 13:57:22,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 01:57:22 BoogieIcfgContainer [2022-07-14 13:57:22,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 13:57:22,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 13:57:22,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 13:57:22,813 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 13:57:22,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:56:46" (3/4) ... [2022-07-14 13:57:22,817 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 13:57:22,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 13:57:22,818 INFO L158 Benchmark]: Toolchain (without parser) took 37443.49ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 87.7MB in the beginning and 63.5MB in the end (delta: 24.3MB). Peak memory consumption was 113.0MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,818 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:57:22,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.30ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 93.5MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 92.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,821 INFO L158 Benchmark]: Boogie Preprocessor took 44.02ms. Allocated memory is still 121.6MB. Free memory was 92.0MB in the beginning and 90.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,823 INFO L158 Benchmark]: RCFGBuilder took 430.50ms. Allocated memory is still 121.6MB. Free memory was 90.4MB in the beginning and 71.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,823 INFO L158 Benchmark]: TraceAbstraction took 36594.64ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 70.5MB in the beginning and 63.5MB in the end (delta: 7.0MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. [2022-07-14 13:57:22,823 INFO L158 Benchmark]: Witness Printer took 4.41ms. Allocated memory is still 211.8MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 13:57:22,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.30ms. Allocated memory is still 121.6MB. Free memory was 87.7MB in the beginning and 93.5MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 121.6MB. Free memory was 93.5MB in the beginning and 92.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.02ms. Allocated memory is still 121.6MB. Free memory was 92.0MB in the beginning and 90.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.50ms. Allocated memory is still 121.6MB. Free memory was 90.4MB in the beginning and 71.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 36594.64ms. Allocated memory was 121.6MB in the beginning and 211.8MB in the end (delta: 90.2MB). Free memory was 70.5MB in the beginning and 63.5MB in the end (delta: 7.0MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. * Witness Printer took 4.41ms. Allocated memory is still 211.8MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 77. Possible FailurePath: [L227] unsigned int a ; [L228] unsigned int ma = __VERIFIER_nondet_uint(); [L229] signed char ea = __VERIFIER_nondet_char(); [L230] unsigned int b ; [L231] unsigned int mb = __VERIFIER_nondet_uint(); [L232] signed char eb = __VERIFIER_nondet_char(); [L233] unsigned int r_add1 ; [L234] unsigned int r_add2 ; [L235] unsigned int zero ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int __retres14 ; VAL [ea=-126, eb=-127] [L242] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L30] COND TRUE ! m [L31] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L81] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L242] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L242] zero = base2flt(0, 0) [L243] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L30] COND FALSE !(! m) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L58] COND TRUE 1 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L77] m = m & ~ (1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L79] __retres4 = res VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, __retres4=2130706431, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L81] return (__retres4); VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, \result=2130706431, __retres4=2130706431, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L243] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=2130706431, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, ma=16777216, res = m | ((unsigned int )(e + 128) << 24U)=33554432, zero=0] [L243] a = base2flt(ma, ea) [L244] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L30] COND FALSE !(! m) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L58] COND TRUE 1 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L77] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L79] __retres4 = res VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, __retres4=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L81] return (__retres4); VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, \result=36028799149670400, __retres4=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L244] RET, EXPR base2flt(mb, eb) VAL [a=2130706431, base2flt(mb, eb)=36028799149670400, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=16777216, zero=0] [L244] b = base2flt(mb, eb) [L245] CALL addflt(a, b) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405] [L85] unsigned int res ; [L86] unsigned int ma ; [L87] unsigned int mb ; [L88] unsigned int delta ; [L89] int ea ; [L90] int eb ; [L91] unsigned int tmp ; [L92] unsigned int __retres10 ; VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706431, b=2130706432, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405] [L95] COND TRUE a < b [L96] tmp = a [L97] a = b [L98] b = tmp VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L102] COND FALSE !(! b) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L109] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L110] (int )(a >> 24U) - 128 VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: 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 4 procedures, 124 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 36.5s, OverallIterations: 33, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14828 SdHoareTripleChecker+Valid, 19.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14731 mSDsluCounter, 17118 SdHoareTripleChecker+Invalid, 16.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10431 mSDsCounter, 1651 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47935 IncrementalHoareTripleChecker+Invalid, 49586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1651 mSolverCounterUnsat, 6687 mSDtfsCounter, 47935 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2055 GetRequests, 1470 SyntacticMatches, 15 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=30, InterpolantAutomatonStates: 450, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 32 MinimizatonAttempts, 13216 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 2057 NumberOfCodeBlocks, 2057 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 6645 SizeOfPredicates, 61 NumberOfNonLiveVariables, 3176 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 63 InterpolantComputations, 22 PerfectInterpolantSequences, 809/961 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 [2022-07-14 13:57:22,841 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... --- End real Ultimate output --- 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