./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_4-2.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:13:08,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:13:08,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:13:08,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:13:08,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:13:08,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:13:08,533 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:13:08,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:13:08,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:13:08,537 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:13:08,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:13:08,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:13:08,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:13:08,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:13:08,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:13:08,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:13:08,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:13:08,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:13:08,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:13:08,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:13:08,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:13:08,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:13:08,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:13:08,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:13:08,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:13:08,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:13:08,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:13:08,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:13:08,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:13:08,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:13:08,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:13:08,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:13:08,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:13:08,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:13:08,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:13:08,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:13:08,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:13:08,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:13:08,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:13:08,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:13:08,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:13:08,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-14 14:13:08,603 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:13:08,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:13:08,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:13:08,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:13:08,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:13:08,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:13:08,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:13:08,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:13:08,607 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:13:08,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:13:08,608 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 14:13:08,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:13:08,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:13:08,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 14:13:08,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:13:08,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:13:08,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:13:08,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:13:08,610 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:13:08,610 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 14:13:08,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:13:08,610 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:13:08,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:13:08,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:13:08,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:13:08,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:13:08,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:13:08,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:13:08,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:13:08,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:13:08,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:13:08,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:13:08,613 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:13:08,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:13:08,613 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:13:08,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:13:08,613 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:13:08,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2023-02-14 14:13:08,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:13:08,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:13:08,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:13:08,902 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:13:08,902 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:13:08,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2023-02-14 14:13:10,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:13:10,266 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:13:10,267 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2023-02-14 14:13:10,272 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e8c6fb7/1cc2bb4a62b6491e9acc95095f9f0aea/FLAGec1ffb91c [2023-02-14 14:13:10,288 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24e8c6fb7/1cc2bb4a62b6491e9acc95095f9f0aea [2023-02-14 14:13:10,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:13:10,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:13:10,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:10,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:13:10,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:13:10,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3deb27ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10, skipping insertion in model container [2023-02-14 14:13:10,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:13:10,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:13:10,447 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_4-2.c.cil.c[816,829] [2023-02-14 14:13:10,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:10,496 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:13:10,507 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_4-2.c.cil.c[816,829] [2023-02-14 14:13:10,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:10,550 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:13:10,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10 WrapperNode [2023-02-14 14:13:10,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:10,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:10,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:13:10,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:13:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,593 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 167 [2023-02-14 14:13:10,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:10,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:13:10,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:13:10,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:13:10,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:13:10,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:13:10,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:13:10,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:13:10,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (1/1) ... [2023-02-14 14:13:10,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:13:10,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:13:10,691 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 14:13:10,717 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 14:13:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 14:13:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 14:13:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-14 14:13:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-14 14:13:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:13:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:13:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-02-14 14:13:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-02-14 14:13:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 14:13:10,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 14:13:10,818 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:13:10,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:13:11,263 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:13:11,273 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:13:11,273 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:13:11,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:11 BoogieIcfgContainer [2023-02-14 14:13:11,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:13:11,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:13:11,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:13:11,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:13:11,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:13:10" (1/3) ... [2023-02-14 14:13:11,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503202f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:11, skipping insertion in model container [2023-02-14 14:13:11,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:10" (2/3) ... [2023-02-14 14:13:11,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503202f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:11, skipping insertion in model container [2023-02-14 14:13:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:11" (3/3) ... [2023-02-14 14:13:11,286 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2023-02-14 14:13:11,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:13:11,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-14 14:13:11,367 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:13:11,373 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;@1265a1d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:13:11,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-14 14:13:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 106 states have internal predecessors, (141), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-14 14:13:11,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:13:11,384 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:11,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:11,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:11,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:11,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1373570585, now seen corresponding path program 1 times [2023-02-14 14:13:11,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:11,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061376579] [2023-02-14 14:13:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:11,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:11,656 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 14:13:11,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:11,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061376579] [2023-02-14 14:13:11,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061376579] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:11,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:11,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:13:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668332124] [2023-02-14 14:13:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:11,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:11,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:11,690 INFO L87 Difference]: Start difference. First operand has 118 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 106 states have internal predecessors, (141), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 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 14:13:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:11,828 INFO L93 Difference]: Finished difference Result 288 states and 405 transitions. [2023-02-14 14:13:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:13:11,830 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 14:13:11,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:11,839 INFO L225 Difference]: With dead ends: 288 [2023-02-14 14:13:11,839 INFO L226 Difference]: Without dead ends: 163 [2023-02-14 14:13:11,843 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 14:13:11,846 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 87 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:11,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 397 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:13:11,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-14 14:13:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2023-02-14 14:13:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 139 states have internal predecessors, (186), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 199 transitions. [2023-02-14 14:13:11,896 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 199 transitions. Word has length 9 [2023-02-14 14:13:11,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:11,897 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 199 transitions. [2023-02-14 14:13:11,898 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 14:13:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 199 transitions. [2023-02-14 14:13:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-14 14:13:11,900 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:11,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:11,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:13:11,913 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1711076775, now seen corresponding path program 1 times [2023-02-14 14:13:11,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:11,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716608758] [2023-02-14 14:13:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,063 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 14:13:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:12,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716608758] [2023-02-14 14:13:12,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716608758] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:12,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:12,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:12,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133513781] [2023-02-14 14:13:12,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:12,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:13:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:13:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:13:12,071 INFO L87 Difference]: Start difference. First operand 150 states and 199 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 14:13:12,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:12,233 INFO L93 Difference]: Finished difference Result 291 states and 372 transitions. [2023-02-14 14:13:12,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:13:12,234 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 14:13:12,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:12,236 INFO L225 Difference]: With dead ends: 291 [2023-02-14 14:13:12,236 INFO L226 Difference]: Without dead ends: 184 [2023-02-14 14:13:12,237 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 14:13:12,238 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 140 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:12,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 481 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:13:12,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-02-14 14:13:12,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 164. [2023-02-14 14:13:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 133 states have (on average 1.5413533834586466) internal successors, (205), 153 states have internal predecessors, (205), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 218 transitions. [2023-02-14 14:13:12,258 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 218 transitions. Word has length 14 [2023-02-14 14:13:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:12,261 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 218 transitions. [2023-02-14 14:13:12,261 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 14:13:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 218 transitions. [2023-02-14 14:13:12,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-14 14:13:12,263 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:12,263 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:12,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 14:13:12,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:12,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1070009216, now seen corresponding path program 1 times [2023-02-14 14:13:12,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:12,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541213518] [2023-02-14 14:13:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:12,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:13:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,324 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 14:13:12,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:12,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541213518] [2023-02-14 14:13:12,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541213518] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:12,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:12,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:13:12,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394944537] [2023-02-14 14:13:12,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:12,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:13:12,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:12,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:13:12,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:12,327 INFO L87 Difference]: Start difference. First operand 164 states and 218 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 14:13:12,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:12,366 INFO L93 Difference]: Finished difference Result 170 states and 225 transitions. [2023-02-14 14:13:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:13:12,367 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 14:13:12,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:12,369 INFO L225 Difference]: With dead ends: 170 [2023-02-14 14:13:12,371 INFO L226 Difference]: Without dead ends: 169 [2023-02-14 14:13:12,372 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 14:13:12,374 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 4 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 245 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 14:13:12,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 245 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-14 14:13:12,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 162. [2023-02-14 14:13:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 151 states have internal predecessors, (202), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 215 transitions. [2023-02-14 14:13:12,390 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 215 transitions. Word has length 16 [2023-02-14 14:13:12,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:12,390 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 215 transitions. [2023-02-14 14:13:12,390 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 14:13:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 215 transitions. [2023-02-14 14:13:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 14:13:12,391 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:12,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:12,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 14:13:12,392 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:12,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:12,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1151698491, now seen corresponding path program 1 times [2023-02-14 14:13:12,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:12,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441697955] [2023-02-14 14:13:12,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:12,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,468 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 14:13:12,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:12,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441697955] [2023-02-14 14:13:12,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441697955] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:12,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:12,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:12,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594517743] [2023-02-14 14:13:12,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:12,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:12,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:12,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:12,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:12,471 INFO L87 Difference]: Start difference. First operand 162 states and 215 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 14:13:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:12,513 INFO L93 Difference]: Finished difference Result 267 states and 347 transitions. [2023-02-14 14:13:12,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:13:12,514 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 14:13:12,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:12,515 INFO L225 Difference]: With dead ends: 267 [2023-02-14 14:13:12,516 INFO L226 Difference]: Without dead ends: 110 [2023-02-14 14:13:12,516 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 14:13:12,517 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 7 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 370 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 14:13:12,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 370 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:12,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-02-14 14:13:12,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-02-14 14:13:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 80 states have (on average 1.55) internal successors, (124), 99 states have internal predecessors, (124), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2023-02-14 14:13:12,525 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 15 [2023-02-14 14:13:12,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:12,526 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2023-02-14 14:13:12,526 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 14:13:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2023-02-14 14:13:12,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:13:12,526 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:12,527 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:12,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 14:13:12,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:12,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:12,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1218080085, now seen corresponding path program 1 times [2023-02-14 14:13:12,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:12,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116159308] [2023-02-14 14:13:12,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:12,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:13:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,634 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 14:13:12,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:12,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116159308] [2023-02-14 14:13:12,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116159308] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:12,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:12,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:12,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116017254] [2023-02-14 14:13:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:12,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:13:12,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:12,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:13:12,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:13:12,644 INFO L87 Difference]: Start difference. First operand 110 states and 137 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 14:13:12,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:12,738 INFO L93 Difference]: Finished difference Result 160 states and 201 transitions. [2023-02-14 14:13:12,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:13:12,740 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 14:13:12,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:12,745 INFO L225 Difference]: With dead ends: 160 [2023-02-14 14:13:12,745 INFO L226 Difference]: Without dead ends: 156 [2023-02-14 14:13:12,746 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 14:13:12,750 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 101 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 434 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 14:13:12,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 434 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:13:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-02-14 14:13:12,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 142. [2023-02-14 14:13:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.5535714285714286) internal successors, (174), 130 states have internal predecessors, (174), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 187 transitions. [2023-02-14 14:13:12,766 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 187 transitions. Word has length 17 [2023-02-14 14:13:12,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:12,766 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 187 transitions. [2023-02-14 14:13:12,766 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 14:13:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 187 transitions. [2023-02-14 14:13:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:13:12,767 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:12,767 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:12,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 14:13:12,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:12,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1189452729, now seen corresponding path program 1 times [2023-02-14 14:13:12,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:12,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626348572] [2023-02-14 14:13:12,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:12,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:13:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:12,867 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 14:13:12,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:12,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626348572] [2023-02-14 14:13:12,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626348572] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:12,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:12,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:12,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019527482] [2023-02-14 14:13:12,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:12,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:13:12,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:12,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:13:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:13:12,869 INFO L87 Difference]: Start difference. First operand 142 states and 187 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 14:13:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:12,951 INFO L93 Difference]: Finished difference Result 166 states and 210 transitions. [2023-02-14 14:13:12,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:13:12,951 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 14:13:12,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:12,952 INFO L225 Difference]: With dead ends: 166 [2023-02-14 14:13:12,952 INFO L226 Difference]: Without dead ends: 163 [2023-02-14 14:13:12,953 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 14:13:12,953 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 101 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:12,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 434 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:13:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-14 14:13:12,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 148. [2023-02-14 14:13:12,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 136 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:12,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 193 transitions. [2023-02-14 14:13:12,963 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 193 transitions. Word has length 17 [2023-02-14 14:13:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:12,964 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 193 transitions. [2023-02-14 14:13:12,964 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 14:13:12,964 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 193 transitions. [2023-02-14 14:13:12,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 14:13:12,965 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:12,965 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 14:13:12,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 14:13:12,965 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:12,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:12,966 INFO L85 PathProgramCache]: Analyzing trace with hash -554907808, now seen corresponding path program 1 times [2023-02-14 14:13:12,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:12,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411925101] [2023-02-14 14:13:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:12,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:13,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-14 14:13:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:13,016 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 14:13:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:13:13,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411925101] [2023-02-14 14:13:13,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411925101] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:13,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:13,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:13:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947310270] [2023-02-14 14:13:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:13,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:13:13,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:13,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:13,018 INFO L87 Difference]: Start difference. First operand 148 states and 193 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 14:13:13,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:13,067 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2023-02-14 14:13:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:13:13,068 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 14:13:13,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:13,070 INFO L225 Difference]: With dead ends: 174 [2023-02-14 14:13:13,070 INFO L226 Difference]: Without dead ends: 172 [2023-02-14 14:13:13,070 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 14:13:13,071 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 25 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:13,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 249 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:13,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-02-14 14:13:13,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 148. [2023-02-14 14:13:13,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.504201680672269) internal successors, (179), 136 states have internal predecessors, (179), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2023-02-14 14:13:13,087 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 21 [2023-02-14 14:13:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:13,088 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2023-02-14 14:13:13,088 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 14:13:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2023-02-14 14:13:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-14 14:13:13,091 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:13,091 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 14:13:13,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-14 14:13:13,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:13,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1661769196, now seen corresponding path program 1 times [2023-02-14 14:13:13,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:13:13,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529824079] [2023-02-14 14:13:13,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:13,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:13:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:13,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:13:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:13,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:13:13,131 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 14:13:13,132 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-14 14:13:13,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-14 14:13:13,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-14 14:13:13,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-14 14:13:13,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-14 14:13:13,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-14 14:13:13,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-14 14:13:13,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-14 14:13:13,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-14 14:13:13,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-14 14:13:13,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-14 14:13:13,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-14 14:13:13,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-14 14:13:13,140 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-14 14:13:13,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-14 14:13:13,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-14 14:13:13,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-14 14:13:13,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-14 14:13:13,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-14 14:13:13,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-14 14:13:13,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-14 14:13:13,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-14 14:13:13,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-14 14:13:13,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:13,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 14:13:13,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:13:13 BoogieIcfgContainer [2023-02-14 14:13:13,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 14:13:13,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:13:13,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:13:13,190 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:13:13,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:11" (3/4) ... [2023-02-14 14:13:13,193 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:13:13,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:13:13,194 INFO L158 Benchmark]: Toolchain (without parser) took 2900.29ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 128.9MB in the beginning and 82.2MB in the end (delta: 46.7MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,194 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:13,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.31ms. Allocated memory is still 169.9MB. Free memory was 128.5MB in the beginning and 115.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,195 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.25ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,195 INFO L158 Benchmark]: Boogie Preprocessor took 50.91ms. Allocated memory is still 169.9MB. Free memory was 113.1MB in the beginning and 111.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:13,195 INFO L158 Benchmark]: RCFGBuilder took 630.20ms. Allocated memory is still 169.9MB. Free memory was 111.0MB in the beginning and 89.6MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,196 INFO L158 Benchmark]: TraceAbstraction took 1911.44ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 89.1MB in the beginning and 83.3MB in the end (delta: 5.8MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,196 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 209.7MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:13:13,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.31ms. Allocated memory is still 169.9MB. Free memory was 128.5MB in the beginning and 115.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.25ms. Allocated memory is still 169.9MB. Free memory was 115.1MB in the beginning and 113.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.91ms. Allocated memory is still 169.9MB. Free memory was 113.1MB in the beginning and 111.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 630.20ms. Allocated memory is still 169.9MB. Free memory was 111.0MB in the beginning and 89.6MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1911.44ms. Allocated memory was 169.9MB in the beginning and 209.7MB in the end (delta: 39.8MB). Free memory was 89.1MB in the beginning and 83.3MB in the end (delta: 5.8MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 209.7MB. Free memory was 83.3MB in the beginning and 82.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 80. Possible FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; VAL [ea=0, eb=0] [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L245] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L61] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 118 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 473 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 465 mSDsluCounter, 2610 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1741 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 869 mSDtfsCounter, 379 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=164occurred 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, 0.6s 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 14:13:13,223 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_4-2.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 da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:13:15,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:13:15,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:13:15,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:13:15,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:13:15,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:13:15,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:13:15,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:13:15,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:13:15,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:13:15,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:13:15,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:13:15,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:13:15,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:13:15,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:13:15,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:13:15,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:13:15,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:13:15,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:13:15,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:13:15,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:13:15,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:13:15,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:13:15,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:13:15,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:13:15,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:13:15,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:13:15,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:13:15,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:13:15,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:13:15,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:13:15,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:13:15,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:13:15,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:13:15,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:13:15,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:13:15,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:13:15,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:13:15,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:13:15,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:13:15,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:13:15,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-14 14:13:15,431 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:13:15,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:13:15,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:13:15,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:13:15,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:13:15,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:13:15,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:13:15,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:13:15,434 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:13:15,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:13:15,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 14:13:15,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:13:15,437 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:13:15,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:13:15,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:13:15,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:13:15,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:13:15,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:13:15,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:13:15,438 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:13:15,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:13:15,439 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-14 14:13:15,439 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:13:15,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da84b0bfdfce2fad5f551c5bc14b33ff3764ad6f4b0c00bd09707e2922ecd646 [2023-02-14 14:13:15,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:13:15,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:13:15,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:13:15,779 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:13:15,780 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:13:15,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2023-02-14 14:13:16,960 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:13:17,205 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:13:17,205 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2.c.cil.c [2023-02-14 14:13:17,214 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64eef555e/1ef0c1ed61cd4cad9385effe9c03d913/FLAGbff27fb36 [2023-02-14 14:13:17,225 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64eef555e/1ef0c1ed61cd4cad9385effe9c03d913 [2023-02-14 14:13:17,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:13:17,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:13:17,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:17,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:13:17,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:13:17,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1796f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17, skipping insertion in model container [2023-02-14 14:13:17,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:13:17,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:13:17,371 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_4-2.c.cil.c[816,829] [2023-02-14 14:13:17,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:17,426 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:13:17,437 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_4-2.c.cil.c[816,829] [2023-02-14 14:13:17,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:13:17,474 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:13:17,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17 WrapperNode [2023-02-14 14:13:17,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:13:17,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:17,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:13:17,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:13:17,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,528 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2023-02-14 14:13:17,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:13:17,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:13:17,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:13:17,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:13:17,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,614 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:13:17,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:13:17,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:13:17,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:13:17,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (1/1) ... [2023-02-14 14:13:17,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:13:17,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:13:17,664 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 14:13:17,691 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 14:13:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 14:13:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-14 14:13:17,710 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-14 14:13:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-14 14:13:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:13:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:13:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2023-02-14 14:13:17,711 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2023-02-14 14:13:17,711 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 14:13:17,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 14:13:17,800 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:13:17,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:13:18,164 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:13:18,178 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:13:18,179 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 14:13:18,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:18 BoogieIcfgContainer [2023-02-14 14:13:18,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:13:18,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:13:18,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:13:18,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:13:18,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:13:17" (1/3) ... [2023-02-14 14:13:18,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430564a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:18, skipping insertion in model container [2023-02-14 14:13:18,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:13:17" (2/3) ... [2023-02-14 14:13:18,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430564a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:13:18, skipping insertion in model container [2023-02-14 14:13:18,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:18" (3/3) ... [2023-02-14 14:13:18,192 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_4-2.c.cil.c [2023-02-14 14:13:18,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:13:18,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-14 14:13:18,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:13:18,288 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;@26e177e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:13:18,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-14 14:13:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 84 states have internal predecessors, (103), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-14 14:13:18,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:13:18,299 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:18,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:18,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:18,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1706781765, now seen corresponding path program 1 times [2023-02-14 14:13:18,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:18,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998882602] [2023-02-14 14:13:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:18,317 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 14:13:18,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:18,329 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 14:13:18,333 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 14:13:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:18,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-14 14:13:18,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:18,429 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 14:13:18,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:18,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:18,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998882602] [2023-02-14 14:13:18,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998882602] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:18,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:18,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-14 14:13:18,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549278967] [2023-02-14 14:13:18,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:18,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 14:13:18,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:18,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 14:13:18,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 14:13:18,481 INFO L87 Difference]: Start difference. First operand has 96 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 84 states have internal predecessors, (103), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 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 14:13:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:18,535 INFO L93 Difference]: Finished difference Result 180 states and 242 transitions. [2023-02-14 14:13:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 14:13:18,537 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 14:13:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:18,546 INFO L225 Difference]: With dead ends: 180 [2023-02-14 14:13:18,546 INFO L226 Difference]: Without dead ends: 77 [2023-02-14 14:13:18,554 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 14:13:18,557 INFO L413 NwaCegarLoop]: 104 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, 104 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 14:13:18,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:18,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-14 14:13:18,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-02-14 14:13:18,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 67 states have internal predecessors, (78), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-02-14 14:13:18,607 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 9 [2023-02-14 14:13:18,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:18,608 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-02-14 14:13:18,608 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 14:13:18,609 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-02-14 14:13:18,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:13:18,610 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:18,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:18,621 INFO L552 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)] Ended with exit code 0 [2023-02-14 14:13:18,821 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 14:13:18,822 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:18,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1707723031, now seen corresponding path program 1 times [2023-02-14 14:13:18,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947437923] [2023-02-14 14:13:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:18,823 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 14:13:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:18,824 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 14:13:18,827 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 14:13:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:18,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:13:18,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:18,926 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 14:13:18,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:18,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:18,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947437923] [2023-02-14 14:13:18,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947437923] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:18,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:18,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 14:13:18,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056333970] [2023-02-14 14:13:18,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:18,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:18,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:18,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:18,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:18,930 INFO L87 Difference]: Start difference. First operand 77 states and 91 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 14:13:18,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:18,980 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2023-02-14 14:13:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 14:13:18,980 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 14:13:18,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:18,983 INFO L225 Difference]: With dead ends: 159 [2023-02-14 14:13:18,983 INFO L226 Difference]: Without dead ends: 85 [2023-02-14 14:13:18,983 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 14:13:18,984 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 9 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 251 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 14:13:18,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 251 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-02-14 14:13:18,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-02-14 14:13:18,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 71 states have internal predecessors, (82), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2023-02-14 14:13:18,994 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 9 [2023-02-14 14:13:18,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:18,995 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2023-02-14 14:13:18,995 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 14:13:18,995 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2023-02-14 14:13:18,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-14 14:13:18,996 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:18,996 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:13:19,020 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 14:13:19,219 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 14:13:19,220 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:19,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:19,220 INFO L85 PathProgramCache]: Analyzing trace with hash -202593319, now seen corresponding path program 1 times [2023-02-14 14:13:19,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:19,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034137935] [2023-02-14 14:13:19,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:19,221 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 14:13:19,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:19,223 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 14:13:19,225 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 14:13:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:19,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:13:19,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:19,272 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 14:13:19,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:19,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:19,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034137935] [2023-02-14 14:13:19,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034137935] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:19,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:19,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:13:19,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590369524] [2023-02-14 14:13:19,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:19,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:13:19,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:13:19,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:19,275 INFO L87 Difference]: Start difference. First operand 82 states and 95 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 14:13:19,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:19,310 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2023-02-14 14:13:19,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:13:19,310 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 14:13:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:19,312 INFO L225 Difference]: With dead ends: 85 [2023-02-14 14:13:19,312 INFO L226 Difference]: Without dead ends: 84 [2023-02-14 14:13:19,312 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 14:13:19,313 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 165 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 14:13:19,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 165 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-14 14:13:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-02-14 14:13:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 58 states have (on average 1.396551724137931) internal successors, (81), 70 states have internal predecessors, (81), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2023-02-14 14:13:19,322 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2023-02-14 14:13:19,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:19,322 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2023-02-14 14:13:19,322 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 14:13:19,322 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2023-02-14 14:13:19,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 14:13:19,323 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:19,323 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 14:13:19,341 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 14:13:19,539 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 14:13:19,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:19,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:19,540 INFO L85 PathProgramCache]: Analyzing trace with hash -531201343, now seen corresponding path program 1 times [2023-02-14 14:13:19,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:19,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200600920] [2023-02-14 14:13:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:19,541 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 14:13:19,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:19,542 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 14:13:19,545 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 14:13:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:19,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:13:19,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:19,597 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 14:13:19,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:19,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:19,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200600920] [2023-02-14 14:13:19,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200600920] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:19,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:19,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:13:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868097618] [2023-02-14 14:13:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:19,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:13:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:19,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:13:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:13:19,600 INFO L87 Difference]: Start difference. First operand 81 states and 94 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 14:13:19,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:19,629 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2023-02-14 14:13:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:13:19,630 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 14:13:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:19,631 INFO L225 Difference]: With dead ends: 84 [2023-02-14 14:13:19,631 INFO L226 Difference]: Without dead ends: 83 [2023-02-14 14:13:19,631 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 14:13:19,632 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 164 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 14:13:19,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 164 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:13:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-14 14:13:19,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-02-14 14:13:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 69 states have internal predecessors, (80), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-02-14 14:13:19,639 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 18 [2023-02-14 14:13:19,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:19,640 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-02-14 14:13:19,640 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 14:13:19,640 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-02-14 14:13:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 14:13:19,641 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:19,641 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 14:13:19,658 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 14:13:19,849 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 14:13:19,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:19,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash -531133817, now seen corresponding path program 1 times [2023-02-14 14:13:19,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:19,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798973961] [2023-02-14 14:13:19,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:19,850 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 14:13:19,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:19,893 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 14:13:19,895 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 14:13:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:13:19,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:13:19,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:13:20,024 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 14:13:20,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 14:13:20,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-14 14:13:20,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798973961] [2023-02-14 14:13:20,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798973961] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:13:20,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:13:20,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 14:13:20,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310608390] [2023-02-14 14:13:20,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:13:20,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 14:13:20,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-14 14:13:20,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 14:13:20,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 14:13:20,034 INFO L87 Difference]: Start difference. First operand 80 states and 93 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 14:13:20,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:13:20,453 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2023-02-14 14:13:20,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:13:20,455 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 14:13:20,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:13:20,456 INFO L225 Difference]: With dead ends: 102 [2023-02-14 14:13:20,456 INFO L226 Difference]: Without dead ends: 99 [2023-02-14 14:13:20,457 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 14:13:20,458 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 69 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 14:13:20,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-14 14:13:20,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-14 14:13:20,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-02-14 14:13:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.353846153846154) internal successors, (88), 76 states have internal predecessors, (88), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-14 14:13:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2023-02-14 14:13:20,467 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 18 [2023-02-14 14:13:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:13:20,467 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2023-02-14 14:13:20,467 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 14:13:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2023-02-14 14:13:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 14:13:20,468 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:13:20,468 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 14:13:20,476 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 14:13:20,669 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 14:13:20,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-14 14:13:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:13:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash -347921438, now seen corresponding path program 1 times [2023-02-14 14:13:20,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-14 14:13:20,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291837414] [2023-02-14 14:13:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:13:20,671 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 14:13:20,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-14 14:13:20,672 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 14:13:20,673 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 14:13:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:20,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:13:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:13:20,731 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-14 14:13:20,732 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-14 14:13:20,733 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-14 14:13:20,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-14 14:13:20,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-14 14:13:20,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-14 14:13:20,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-14 14:13:20,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-14 14:13:20,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-14 14:13:20,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-14 14:13:20,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-14 14:13:20,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-14 14:13:20,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-14 14:13:20,758 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 14:13:20,938 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 14:13:20,941 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-14 14:13:20,943 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 14:13:20,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 02:13:20 BoogieIcfgContainer [2023-02-14 14:13:20,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 14:13:20,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:13:20,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:13:20,968 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:13:20,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:13:18" (3/4) ... [2023-02-14 14:13:20,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-14 14:13:20,997 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 14:13:20,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:13:20,998 INFO L158 Benchmark]: Toolchain (without parser) took 3769.24ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 45.8MB in the beginning and 38.9MB in the end (delta: 6.9MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-02-14 14:13:20,998 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 27.2MB in the beginning and 27.2MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:20,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.39ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 31.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-14 14:13:20,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.34ms. Allocated memory is still 69.2MB. Free memory was 31.8MB in the beginning and 48.2MB in the end (delta: -16.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 14:13:20,999 INFO L158 Benchmark]: Boogie Preprocessor took 68.72ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:21,000 INFO L158 Benchmark]: RCFGBuilder took 557.00ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 46.5MB in the beginning and 62.7MB in the end (delta: -16.3MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-02-14 14:13:21,000 INFO L158 Benchmark]: TraceAbstraction took 2780.41ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 41.1MB in the end (delta: 21.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-02-14 14:13:21,000 INFO L158 Benchmark]: Witness Printer took 30.34ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 38.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:13:21,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 50.3MB. Free memory was 27.2MB in the beginning and 27.2MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.39ms. Allocated memory is still 69.2MB. Free memory was 45.7MB in the beginning and 31.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.34ms. Allocated memory is still 69.2MB. Free memory was 31.8MB in the beginning and 48.2MB in the end (delta: -16.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.72ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 46.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 557.00ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 46.5MB in the beginning and 62.7MB in the end (delta: -16.3MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2780.41ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 41.1MB in the end (delta: 21.2MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Witness Printer took 30.34ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 38.9MB in the end (delta: 2.2MB). 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 - CounterExampleResult [Line: 81]: integer overflow possible integer overflow possible We found a FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add1 ; [L237] unsigned int r_add2 ; [L238] unsigned int zero ; [L239] int tmp ; [L240] int tmp___0 ; [L241] int __retres14 ; [L245] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L245] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L245] zero = base2flt(0, 0) [L246] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L61] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 871 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 446 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=96occurred 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 14:13:21,032 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)