./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3dbbec33 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94f477eb9e1d39767903bc1f4d97616f290c342b1e9705cced3715d26576f911 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:12:53,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:12:53,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:12:53,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:12:53,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:12:53,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:12:53,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:12:53,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:12:53,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:12:53,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:12:53,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:12:53,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:12:53,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:12:53,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:12:53,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:12:53,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:12:53,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:12:53,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:12:53,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:12:53,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:12:53,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:12:53,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:12:53,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:12:53,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:12:53,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:12:53,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:12:53,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:12:53,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:12:53,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:12:53,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:12:53,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:12:53,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:12:53,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:12:53,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:12:53,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:12:53,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:12:53,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:12:53,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:12:53,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:12:53,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:12:53,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:12:53,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-14 14:12:53,762 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:12:53,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:12:53,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:12:53,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:12:53,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:12:53,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:12:53,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:12:53,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:12:53,764 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:12:53,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:12:53,765 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 14:12:53,765 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:12:53,766 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:12:53,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:12:53,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:12:53,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:12:53,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:12:53,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:12:53,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:12:53,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:12:53,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:12:53,769 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94f477eb9e1d39767903bc1f4d97616f290c342b1e9705cced3715d26576f911 [2023-02-14 14:12:53,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:12:53,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:12:53,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:12:53,992 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:12:53,992 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:12:53,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2023-02-14 14:12:55,061 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:12:55,237 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:12:55,238 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2023-02-14 14:12:55,243 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe553733c/2e56c81ee05948b7afa5c1329da14a78/FLAGd1a43e7c1 [2023-02-14 14:12:55,254 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe553733c/2e56c81ee05948b7afa5c1329da14a78 [2023-02-14 14:12:55,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:12:55,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:12:55,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:12:55,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:12:55,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:12:55,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284158b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55, skipping insertion in model container [2023-02-14 14:12:55,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:12:55,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:12:55,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[729,742] [2023-02-14 14:12:55,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:12:55,428 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:12:55,436 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[729,742] [2023-02-14 14:12:55,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:12:55,470 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:12:55,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55 WrapperNode [2023-02-14 14:12:55,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:12:55,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:12:55,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:12:55,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:12:55,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,506 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 214 [2023-02-14 14:12:55,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:12:55,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:12:55,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:12:55,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:12:55,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:12:55,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:12:55,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:12:55,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:12:55,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (1/1) ... [2023-02-14 14:12:55,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:12:55,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:12:55,595 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) [2023-02-14 14:12:55,598 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 [2023-02-14 14:12:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 14:12:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 14:12:55,623 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-14 14:12:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-14 14:12:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:12:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:12:55,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 14:12:55,624 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 14:12:55,700 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:12:55,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:12:56,075 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:12:56,081 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:12:56,081 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:12:56,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:12:56 BoogieIcfgContainer [2023-02-14 14:12:56,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:12:56,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:12:56,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:12:56,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:12:56,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:12:55" (1/3) ... [2023-02-14 14:12:56,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8dad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:12:56, skipping insertion in model container [2023-02-14 14:12:56,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:12:55" (2/3) ... [2023-02-14 14:12:56,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8dad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:12:56, skipping insertion in model container [2023-02-14 14:12:56,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:12:56" (3/3) ... [2023-02-14 14:12:56,102 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2023-02-14 14:12:56,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:12:56,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-14 14:12:56,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:12:56,174 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@50ae0650, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:12:56,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-14 14:12:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 126 states have internal predecessors, (174), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-14 14:12:56,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:12:56,200 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:56,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:56,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash 447396805, now seen corresponding path program 1 times [2023-02-14 14:12:56,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:56,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524211201] [2023-02-14 14:12:56,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:56,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:56,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:12:56,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:56,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524211201] [2023-02-14 14:12:56,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524211201] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:56,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:56,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:12:56,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223912374] [2023-02-14 14:12:56,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:56,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:12:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:56,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:12:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:12:56,392 INFO L87 Difference]: Start difference. First operand has 136 states, 102 states have (on average 1.7058823529411764) internal successors, (174), 126 states have internal predecessors, (174), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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) [2023-02-14 14:12:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:56,492 INFO L93 Difference]: Finished difference Result 324 states and 476 transitions. [2023-02-14 14:12:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:12:56,495 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 [2023-02-14 14:12:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:56,507 INFO L225 Difference]: With dead ends: 324 [2023-02-14 14:12:56,507 INFO L226 Difference]: Without dead ends: 160 [2023-02-14 14:12:56,512 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 [2023-02-14 14:12:56,516 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 87 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:56,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 505 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:12:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-14 14:12:56,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 147. [2023-02-14 14:12:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 118 states have (on average 1.5508474576271187) internal successors, (183), 137 states have internal predecessors, (183), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 195 transitions. [2023-02-14 14:12:56,554 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 195 transitions. Word has length 9 [2023-02-14 14:12:56,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:56,554 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 195 transitions. [2023-02-14 14:12:56,554 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) [2023-02-14 14:12:56,555 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 195 transitions. [2023-02-14 14:12:56,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 14:12:56,557 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:56,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:56,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:12:56,558 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:56,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:56,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1832764219, now seen corresponding path program 1 times [2023-02-14 14:12:56,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:56,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005663974] [2023-02-14 14:12:56,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:56,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:12:56,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:56,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005663974] [2023-02-14 14:12:56,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005663974] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:56,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:56,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:12:56,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204835836] [2023-02-14 14:12:56,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:56,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:12:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:56,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:12:56,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:12:56,648 INFO L87 Difference]: Start difference. First operand 147 states and 195 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) [2023-02-14 14:12:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:56,791 INFO L93 Difference]: Finished difference Result 285 states and 364 transitions. [2023-02-14 14:12:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:12:56,792 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 [2023-02-14 14:12:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:56,795 INFO L225 Difference]: With dead ends: 285 [2023-02-14 14:12:56,796 INFO L226 Difference]: Without dead ends: 181 [2023-02-14 14:12:56,796 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 [2023-02-14 14:12:56,797 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 157 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:56,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 373 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:12:56,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-14 14:12:56,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-02-14 14:12:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 151 states have internal predecessors, (202), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:56,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 214 transitions. [2023-02-14 14:12:56,816 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 214 transitions. Word has length 14 [2023-02-14 14:12:56,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:56,817 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 214 transitions. [2023-02-14 14:12:56,817 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) [2023-02-14 14:12:56,817 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 214 transitions. [2023-02-14 14:12:56,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-14 14:12:56,818 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:56,818 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:56,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 14:12:56,818 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:56,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1923907298, now seen corresponding path program 1 times [2023-02-14 14:12:56,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:56,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107360752] [2023-02-14 14:12:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:56,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:12:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-14 14:12:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:56,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107360752] [2023-02-14 14:12:56,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107360752] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:56,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:56,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:12:56,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768621361] [2023-02-14 14:12:56,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:56,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:12:56,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:56,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:12:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:12:56,892 INFO L87 Difference]: Start difference. First operand 161 states and 214 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:12:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:56,920 INFO L93 Difference]: Finished difference Result 167 states and 221 transitions. [2023-02-14 14:12:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:12:56,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16 [2023-02-14 14:12:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:56,922 INFO L225 Difference]: With dead ends: 167 [2023-02-14 14:12:56,922 INFO L226 Difference]: Without dead ends: 166 [2023-02-14 14:12:56,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:12:56,928 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 4 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:56,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 237 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:12:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-02-14 14:12:56,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 159. [2023-02-14 14:12:56,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 131 states have (on average 1.5190839694656488) internal successors, (199), 149 states have internal predecessors, (199), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:56,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 211 transitions. [2023-02-14 14:12:56,943 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 211 transitions. Word has length 16 [2023-02-14 14:12:56,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:56,943 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 211 transitions. [2023-02-14 14:12:56,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:12:56,943 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 211 transitions. [2023-02-14 14:12:56,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 14:12:56,944 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:56,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 14:12:56,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash -658380391, now seen corresponding path program 1 times [2023-02-14 14:12:56,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:56,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201357397] [2023-02-14 14:12:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:12:57,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:57,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201357397] [2023-02-14 14:12:57,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201357397] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:57,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:57,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:12:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059738528] [2023-02-14 14:12:57,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:57,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:12:57,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:12:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:12:57,019 INFO L87 Difference]: Start difference. First operand 159 states and 211 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2023-02-14 14:12:57,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:57,049 INFO L93 Difference]: Finished difference Result 261 states and 339 transitions. [2023-02-14 14:12:57,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:12:57,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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 [2023-02-14 14:12:57,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:57,050 INFO L225 Difference]: With dead ends: 261 [2023-02-14 14:12:57,050 INFO L226 Difference]: Without dead ends: 107 [2023-02-14 14:12:57,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:12:57,051 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 7 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:57,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 358 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:12:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-02-14 14:12:57,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-02-14 14:12:57,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 97 states have internal predecessors, (121), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:57,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 133 transitions. [2023-02-14 14:12:57,057 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 133 transitions. Word has length 15 [2023-02-14 14:12:57,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:57,057 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 133 transitions. [2023-02-14 14:12:57,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 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) [2023-02-14 14:12:57,057 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 133 transitions. [2023-02-14 14:12:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:12:57,057 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:57,057 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:57,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 14:12:57,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:57,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:57,058 INFO L85 PathProgramCache]: Analyzing trace with hash 517043319, now seen corresponding path program 1 times [2023-02-14 14:12:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:57,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497655861] [2023-02-14 14:12:57,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:57,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:12:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:12:57,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:57,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497655861] [2023-02-14 14:12:57,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497655861] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:57,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:57,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:12:57,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357968146] [2023-02-14 14:12:57,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:57,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:12:57,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:12:57,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:12:57,130 INFO L87 Difference]: Start difference. First operand 107 states and 133 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, (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) [2023-02-14 14:12:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:57,231 INFO L93 Difference]: Finished difference Result 157 states and 197 transitions. [2023-02-14 14:12:57,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:12:57,231 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, (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 17 [2023-02-14 14:12:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:57,233 INFO L225 Difference]: With dead ends: 157 [2023-02-14 14:12:57,234 INFO L226 Difference]: Without dead ends: 153 [2023-02-14 14:12:57,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:12:57,236 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 165 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:57,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 352 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:12:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-02-14 14:12:57,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 139. [2023-02-14 14:12:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 111 states have (on average 1.5405405405405406) internal successors, (171), 128 states have internal predecessors, (171), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2023-02-14 14:12:57,246 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 17 [2023-02-14 14:12:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:57,249 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2023-02-14 14:12:57,249 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, (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) [2023-02-14 14:12:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2023-02-14 14:12:57,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:12:57,250 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:57,250 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:57,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 14:12:57,251 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:57,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:57,251 INFO L85 PathProgramCache]: Analyzing trace with hash 488415963, now seen corresponding path program 1 times [2023-02-14 14:12:57,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585735600] [2023-02-14 14:12:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:57,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:12:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:12:57,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:57,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585735600] [2023-02-14 14:12:57,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585735600] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:57,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:57,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:12:57,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994520949] [2023-02-14 14:12:57,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:57,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:12:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:12:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:12:57,313 INFO L87 Difference]: Start difference. First operand 139 states and 183 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, (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) [2023-02-14 14:12:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:57,379 INFO L93 Difference]: Finished difference Result 163 states and 206 transitions. [2023-02-14 14:12:57,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:12:57,380 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, (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 17 [2023-02-14 14:12:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:57,381 INFO L225 Difference]: With dead ends: 163 [2023-02-14 14:12:57,381 INFO L226 Difference]: Without dead ends: 160 [2023-02-14 14:12:57,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:12:57,384 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 165 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:57,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 352 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:12:57,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-14 14:12:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 145. [2023-02-14 14:12:57,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 118 states have (on average 1.5) internal successors, (177), 134 states have internal predecessors, (177), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:57,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2023-02-14 14:12:57,405 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 17 [2023-02-14 14:12:57,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:57,406 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2023-02-14 14:12:57,406 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, (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) [2023-02-14 14:12:57,406 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2023-02-14 14:12:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 14:12:57,408 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:57,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:57,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 14:12:57,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:57,409 INFO L85 PathProgramCache]: Analyzing trace with hash 640118146, now seen corresponding path program 1 times [2023-02-14 14:12:57,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:57,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079819705] [2023-02-14 14:12:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:57,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:12:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:12:57,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-14 14:12:57,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:12:57,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079819705] [2023-02-14 14:12:57,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079819705] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:12:57,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:12:57,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:12:57,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995101492] [2023-02-14 14:12:57,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:12:57,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:12:57,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:12:57,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:12:57,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:12:57,458 INFO L87 Difference]: Start difference. First operand 145 states and 189 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, (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) [2023-02-14 14:12:57,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:12:57,494 INFO L93 Difference]: Finished difference Result 171 states and 220 transitions. [2023-02-14 14:12:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:12:57,494 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, (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 21 [2023-02-14 14:12:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:12:57,495 INFO L225 Difference]: With dead ends: 171 [2023-02-14 14:12:57,495 INFO L226 Difference]: Without dead ends: 169 [2023-02-14 14:12:57,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:12:57,496 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 20 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:12:57,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 343 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:12:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-14 14:12:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2023-02-14 14:12:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 118 states have (on average 1.4915254237288136) internal successors, (176), 134 states have internal predecessors, (176), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:12:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2023-02-14 14:12:57,502 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 21 [2023-02-14 14:12:57,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:12:57,502 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2023-02-14 14:12:57,502 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, (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) [2023-02-14 14:12:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2023-02-14 14:12:57,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-14 14:12:57,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:12:57,503 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:57,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-14 14:12:57,504 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:12:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:12:57,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1024297010, now seen corresponding path program 1 times [2023-02-14 14:12:57,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:12:57,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247312884] [2023-02-14 14:12:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:12:57,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:12:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:12:57,511 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:12:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:12:57,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:12:57,535 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 14:12:57,536 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-14 14:12:57,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-14 14:12:57,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-14 14:12:57,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-14 14:12:57,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-14 14:12:57,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-14 14:12:57,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-14 14:12:57,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-14 14:12:57,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-14 14:12:57,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-14 14:12:57,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-14 14:12:57,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-14 14:12:57,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-14 14:12:57,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-14 14:12:57,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-14 14:12:57,544 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:12:57,547 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 14:12:57,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:12:57 BoogieIcfgContainer [2023-02-14 14:12:57,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 14:12:57,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:12:57,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:12:57,572 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:12:57,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:12:56" (3/4) ... [2023-02-14 14:12:57,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:12:57,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:12:57,575 INFO L158 Benchmark]: Toolchain (without parser) took 2317.76ms. Allocated memory is still 188.7MB. Free memory was 140.7MB in the beginning and 112.3MB in the end (delta: 28.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2023-02-14 14:12:57,576 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:12:57,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.90ms. Allocated memory is still 188.7MB. Free memory was 140.7MB in the beginning and 126.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 14:12:57,576 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.74ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:12:57,576 INFO L158 Benchmark]: Boogie Preprocessor took 60.60ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:12:57,576 INFO L158 Benchmark]: RCFGBuilder took 527.04ms. Allocated memory is still 188.7MB. Free memory was 121.8MB in the beginning and 97.4MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-02-14 14:12:57,577 INFO L158 Benchmark]: TraceAbstraction took 1475.12ms. Allocated memory is still 188.7MB. Free memory was 96.7MB in the beginning and 113.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:12:57,577 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 188.7MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:12:57,578 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.90ms. Allocated memory is still 188.7MB. Free memory was 140.7MB in the beginning and 126.1MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.74ms. Allocated memory is still 188.7MB. Free memory was 126.1MB in the beginning and 123.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.60ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 121.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.04ms. Allocated memory is still 188.7MB. Free memory was 121.8MB in the beginning and 97.4MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.12ms. Allocated memory is still 188.7MB. Free memory was 96.7MB in the beginning and 113.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 188.7MB. Free memory is still 112.3MB. 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; VAL [ea=0, eb=0] [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L251] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L251] zero = base2flt(0, 0) [L252] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: 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 3 procedures, 136 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 617 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 605 mSDsluCounter, 2520 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1639 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 374 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 881 mSDtfsCounter, 374 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=2, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 93 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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 [2023-02-14 14:12:57,599 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 Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 94f477eb9e1d39767903bc1f4d97616f290c342b1e9705cced3715d26576f911 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:12:59,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:12:59,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:12:59,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:12:59,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:12:59,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:12:59,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:12:59,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:12:59,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:12:59,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:12:59,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:12:59,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:12:59,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:12:59,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:12:59,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:12:59,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:12:59,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:12:59,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:12:59,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:12:59,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:12:59,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:12:59,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:12:59,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:12:59,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:12:59,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:12:59,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:12:59,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:12:59,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:12:59,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:12:59,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:12:59,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:12:59,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:12:59,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:12:59,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:12:59,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:12:59,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:12:59,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:12:59,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:12:59,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:12:59,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:12:59,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:12:59,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-14 14:12:59,521 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:12:59,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:12:59,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:12:59,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:12:59,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:12:59,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:12:59,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:12:59,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:12:59,526 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:12:59,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:12:59,527 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 14:12:59,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:12:59,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-14 14:12:59,528 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:12:59,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:12:59,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:12:59,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:12:59,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:12:59,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:12:59,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:12:59,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:12:59,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:12:59,531 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:12:59,532 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-14 14:12:59,532 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:12:59,532 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94f477eb9e1d39767903bc1f4d97616f290c342b1e9705cced3715d26576f911 [2023-02-14 14:12:59,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:12:59,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:12:59,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:12:59,798 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:12:59,798 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:12:59,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2023-02-14 14:13:00,864 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:13:01,041 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:13:01,048 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c [2023-02-14 14:13:01,054 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70172ee69/0f06fa605be24583bd3eb76467f44ae9/FLAG7909e44c1 [2023-02-14 14:13:01,065 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70172ee69/0f06fa605be24583bd3eb76467f44ae9 [2023-02-14 14:13:01,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:13:01,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:13:01,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:01,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:13:01,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:13:01,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5364b37a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01, skipping insertion in model container [2023-02-14 14:13:01,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:13:01,127 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:13:01,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[729,742] [2023-02-14 14:13:01,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:01,318 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:13:01,333 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3.c.cil.c[729,742] [2023-02-14 14:13:01,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:01,383 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:13:01,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01 WrapperNode [2023-02-14 14:13:01,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:01,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:01,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:13:01,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:13:01,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,423 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2023-02-14 14:13:01,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:01,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:13:01,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:13:01,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:13:01,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,466 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:13:01,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:13:01,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:13:01,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:13:01,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (1/1) ... [2023-02-14 14:13:01,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:13:01,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:13:01,492 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) [2023-02-14 14:13:01,506 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 [2023-02-14 14:13:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 14:13:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-14 14:13:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-14 14:13:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-14 14:13:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:13:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:13:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 14:13:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 14:13:01,611 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:13:01,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:13:01,877 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:13:01,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:13:01,890 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:13:01,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:01 BoogieIcfgContainer [2023-02-14 14:13:01,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:13:01,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:13:01,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:13:01,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:13:01,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:13:01" (1/3) ... [2023-02-14 14:13:01,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15624343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:01, skipping insertion in model container [2023-02-14 14:13:01,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:01" (2/3) ... [2023-02-14 14:13:01,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15624343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:01, skipping insertion in model container [2023-02-14 14:13:01,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:01" (3/3) ... [2023-02-14 14:13:01,910 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-3.c.cil.c [2023-02-14 14:13:01,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:13:01,922 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-14 14:13:01,974 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:13:01,979 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@245d4a1d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:13:01,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-14 14:13:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 80 states have (on average 1.7) internal successors, (136), 104 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-14 14:13:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:13:01,988 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:01,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:01,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:01,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:01,994 INFO L85 PathProgramCache]: Analyzing trace with hash 114185625, now seen corresponding path program 1 times [2023-02-14 14:13:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:02,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3674582] [2023-02-14 14:13:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:02,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:02,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:02,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-14 14:13:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:02,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-14 14:13:02,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:02,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:13:02,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:02,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:02,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3674582] [2023-02-14 14:13:02,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3674582] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:02,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:02,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-14 14:13:02,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385794412] [2023-02-14 14:13:02,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:02,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 14:13:02,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:02,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 14:13:02,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 14:13:02,120 INFO L87 Difference]: Start difference. First operand has 114 states, 80 states have (on average 1.7) internal successors, (136), 104 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 1 states have (on average 8.0) 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) [2023-02-14 14:13:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:02,145 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2023-02-14 14:13:02,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 14:13:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) 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 [2023-02-14 14:13:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:02,155 INFO L225 Difference]: With dead ends: 216 [2023-02-14 14:13:02,155 INFO L226 Difference]: Without dead ends: 77 [2023-02-14 14:13:02,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 14:13:02,160 INFO L413 NwaCegarLoop]: 140 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, 140 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 [2023-02-14 14:13:02,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-14 14:13:02,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-02-14 14:13:02,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 68 states have internal predecessors, (80), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:02,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2023-02-14 14:13:02,187 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 9 [2023-02-14 14:13:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:02,188 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2023-02-14 14:13:02,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) 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) [2023-02-14 14:13:02,188 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2023-02-14 14:13:02,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:13:02,189 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:02,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:02,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:02,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:02,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:02,396 INFO L85 PathProgramCache]: Analyzing trace with hash 113244359, now seen corresponding path program 1 times [2023-02-14 14:13:02,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:02,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204711122] [2023-02-14 14:13:02,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:02,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:02,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:02,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:02,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-14 14:13:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:02,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:13:02,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:13:02,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:02,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:02,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204711122] [2023-02-14 14:13:02,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204711122] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:02,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:02,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:02,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670266499] [2023-02-14 14:13:02,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:02,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:02,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:02,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:02,495 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2023-02-14 14:13:02,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:02,547 INFO L93 Difference]: Finished difference Result 159 states and 190 transitions. [2023-02-14 14:13:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 14:13:02,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2023-02-14 14:13:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:02,549 INFO L225 Difference]: With dead ends: 159 [2023-02-14 14:13:02,550 INFO L226 Difference]: Without dead ends: 85 [2023-02-14 14:13:02,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:13:02,559 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 9 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:02,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 254 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-02-14 14:13:02,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-02-14 14:13:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.4) internal successors, (84), 72 states have internal predecessors, (84), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:02,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2023-02-14 14:13:02,569 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 9 [2023-02-14 14:13:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:02,570 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2023-02-14 14:13:02,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2023-02-14 14:13:02,570 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2023-02-14 14:13:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-14 14:13:02,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:02,570 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:02,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:02,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:02,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:02,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:02,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1056491401, now seen corresponding path program 1 times [2023-02-14 14:13:02,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:02,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946821458] [2023-02-14 14:13:02,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:02,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:02,777 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:02,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-14 14:13:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:02,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:13:02,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:02,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-14 14:13:02,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:02,813 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:02,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946821458] [2023-02-14 14:13:02,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946821458] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:02,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:02,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:13:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844924755] [2023-02-14 14:13:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:02,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:13:02,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:13:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:02,815 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:13:02,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:02,844 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2023-02-14 14:13:02,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:13:02,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16 [2023-02-14 14:13:02,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:02,845 INFO L225 Difference]: With dead ends: 85 [2023-02-14 14:13:02,845 INFO L226 Difference]: Without dead ends: 84 [2023-02-14 14:13:02,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:02,846 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:02,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 167 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-14 14:13:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-02-14 14:13:02,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 71 states have internal predecessors, (83), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:02,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2023-02-14 14:13:02,862 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 16 [2023-02-14 14:13:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:02,862 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2023-02-14 14:13:02,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-02-14 14:13:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2023-02-14 14:13:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 14:13:02,864 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:02,864 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:02,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:03,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,070 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:03,070 INFO L85 PathProgramCache]: Analyzing trace with hash -788504609, now seen corresponding path program 1 times [2023-02-14 14:13:03,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:03,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567483622] [2023-02-14 14:13:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:03,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:03,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:03,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-14 14:13:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:03,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:13:03,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-14 14:13:03,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:03,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:03,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567483622] [2023-02-14 14:13:03,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567483622] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:03,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:03,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:13:03,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103131706] [2023-02-14 14:13:03,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:03,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:13:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:03,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:13:03,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:03,165 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-02-14 14:13:03,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:03,207 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2023-02-14 14:13:03,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:13:03,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 18 [2023-02-14 14:13:03,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:03,211 INFO L225 Difference]: With dead ends: 84 [2023-02-14 14:13:03,211 INFO L226 Difference]: Without dead ends: 83 [2023-02-14 14:13:03,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:03,213 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 2 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:03,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 166 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-14 14:13:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-02-14 14:13:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 70 states have internal predecessors, (82), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2023-02-14 14:13:03,232 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 18 [2023-02-14 14:13:03,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:03,233 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2023-02-14 14:13:03,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-02-14 14:13:03,233 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2023-02-14 14:13:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 14:13:03,233 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:03,233 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:03,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:03,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash -788437083, now seen corresponding path program 1 times [2023-02-14 14:13:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:03,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472884286] [2023-02-14 14:13:03,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:03,439 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:03,440 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:03,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-14 14:13:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:03,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:13:03,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:13:03,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:03,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1472884286] [2023-02-14 14:13:03,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1472884286] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:03,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:03,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:13:03,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037914213] [2023-02-14 14:13:03,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:03,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:03,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:03,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:03,520 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-14 14:13:03,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:03,668 INFO L93 Difference]: Finished difference Result 102 states and 120 transitions. [2023-02-14 14:13:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:13:03,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2023-02-14 14:13:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:03,676 INFO L225 Difference]: With dead ends: 102 [2023-02-14 14:13:03,676 INFO L226 Difference]: Without dead ends: 99 [2023-02-14 14:13:03,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:13:03,677 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 69 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:03,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 190 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:13:03,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-14 14:13:03,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-02-14 14:13:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 77 states have internal predecessors, (90), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2023-02-14 14:13:03,684 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 18 [2023-02-14 14:13:03,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:03,684 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2023-02-14 14:13:03,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-14 14:13:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2023-02-14 14:13:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 14:13:03,685 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:03,685 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:03,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:03,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,893 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:03,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 847104516, now seen corresponding path program 1 times [2023-02-14 14:13:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:03,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216732390] [2023-02-14 14:13:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:03,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:03,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:03,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-14 14:13:03,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-14 14:13:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:03,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:13:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:03,951 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-14 14:13:03,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 14:13:03,952 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-14 14:13:03,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-14 14:13:03,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-14 14:13:03,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-14 14:13:03,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-14 14:13:03,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-14 14:13:03,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:13:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-14 14:13:04,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-14 14:13:04,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 14:13:04,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:13:04 BoogieIcfgContainer [2023-02-14 14:13:04,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 14:13:04,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:13:04,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:13:04,195 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:13:04,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:01" (3/4) ... [2023-02-14 14:13:04,196 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-14 14:13:04,231 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 14:13:04,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:13:04,232 INFO L158 Benchmark]: Toolchain (without parser) took 3163.40ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 56.1MB in the beginning and 73.1MB in the end (delta: -17.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,232 INFO L158 Benchmark]: CDTParser took 2.84ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:04,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.44ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 58.7MB in the end (delta: -2.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.40ms. Allocated memory is still 79.7MB. Free memory was 58.7MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,233 INFO L158 Benchmark]: Boogie Preprocessor took 44.62ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 54.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,233 INFO L158 Benchmark]: RCFGBuilder took 421.65ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 34.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,233 INFO L158 Benchmark]: TraceAbstraction took 2289.09ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 57.5MB in the beginning and 42.3MB in the end (delta: 15.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,234 INFO L158 Benchmark]: Witness Printer took 37.35ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 73.1MB in the end (delta: -31.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:04,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.84ms. Allocated memory is still 62.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.44ms. Allocated memory is still 79.7MB. Free memory was 55.9MB in the beginning and 58.7MB in the end (delta: -2.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.40ms. Allocated memory is still 79.7MB. Free memory was 58.7MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.62ms. Allocated memory is still 79.7MB. Free memory was 56.5MB in the beginning and 54.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.65ms. Allocated memory is still 79.7MB. Free memory was 54.8MB in the beginning and 34.8MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2289.09ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 57.5MB in the beginning and 42.3MB in the end (delta: 15.3MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Witness Printer took 37.35ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 73.1MB in the end (delta: -31.4MB). Peak memory consumption was 4.1MB. 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 - CounterExampleResult [Line: 77]: integer overflow possible integer overflow possible We found a FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L251] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L251] zero = base2flt(0, 0) [L252] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: 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 3 procedures, 114 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 917 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 431 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 486 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 65 ConstructedInterpolants, 8 QuantifiedInterpolants, 110 SizeOfPredicates, 2 NumberOfNonLiveVariables, 170 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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 proved your program to be incorrect! [2023-02-14 14:13:04,252 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)