./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-2.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 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:45:11,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:45:11,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:45:11,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:45:11,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:45:11,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:45:11,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:45:11,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:45:11,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:45:11,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:45:11,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:45:11,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:45:11,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:45:11,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:45:11,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:45:11,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:45:11,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:45:11,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:45:11,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:45:11,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:45:11,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:45:11,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:45:11,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:45:11,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:45:11,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:45:11,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:45:11,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:45:11,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:45:11,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:45:11,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:45:11,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:45:11,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:45:11,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:45:11,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:45:11,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:45:11,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:45:11,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:45:11,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:45:11,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:45:11,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:45:11,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:45:11,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:45:11,417 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:45:11,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:45:11,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:45:11,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:45:11,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:45:11,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:45:11,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:45:11,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:45:11,420 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:45:11,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:45:11,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:45:11,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:45:11,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:45:11,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:45:11,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:45:11,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:11,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:45:11,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:45:11,424 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:45:11,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:45:11,425 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:45:11,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 [2023-02-15 22:45:11,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:45:11,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:45:11,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:45:11,645 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:45:11,646 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:45:11,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-02-15 22:45:12,597 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:45:12,764 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:45:12,764 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-02-15 22:45:12,771 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac2259d7/4222ed7fc7674bccb690c7b7eb69765d/FLAGb469cfe6d [2023-02-15 22:45:12,780 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ac2259d7/4222ed7fc7674bccb690c7b7eb69765d [2023-02-15 22:45:12,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:45:12,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:45:12,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:12,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:45:12,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:45:12,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:12" (1/1) ... [2023-02-15 22:45:12,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229a86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:12, skipping insertion in model container [2023-02-15 22:45:12,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:12" (1/1) ... [2023-02-15 22:45:12,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:45:12,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:45:12,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2023-02-15 22:45:12,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:12,996 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:45:13,004 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2023-02-15 22:45:13,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:13,047 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:45:13,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13 WrapperNode [2023-02-15 22:45:13,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:13,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:13,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:45:13,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:45:13,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,078 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 217 [2023-02-15 22:45:13,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:13,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:45:13,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:45:13,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:45:13,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:45:13,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:45:13,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:45:13,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:45:13,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (1/1) ... [2023-02-15 22:45:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:13,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:13,148 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) [2023-02-15 22:45:13,171 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 [2023-02-15 22:45:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:45:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:45:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 22:45:13,185 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 22:45:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:45:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:45:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 22:45:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 22:45:13,257 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:45:13,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:45:13,621 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:45:13,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:45:13,626 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:45:13,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:13 BoogieIcfgContainer [2023-02-15 22:45:13,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:45:13,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:45:13,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:45:13,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:45:13,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:45:12" (1/3) ... [2023-02-15 22:45:13,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e72d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:13, skipping insertion in model container [2023-02-15 22:45:13,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:13" (2/3) ... [2023-02-15 22:45:13,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e72d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:13, skipping insertion in model container [2023-02-15 22:45:13,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:13" (3/3) ... [2023-02-15 22:45:13,634 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2023-02-15 22:45:13,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:45:13,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-15 22:45:13,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:45:13,686 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;@21d2d261, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:45:13,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-15 22:45:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 103 states have (on average 1.7087378640776698) internal successors, (176), 127 states have internal predecessors, (176), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 22:45:13,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:45:13,694 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:13,694 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:13,695 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:13,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:13,698 INFO L85 PathProgramCache]: Analyzing trace with hash 589947914, now seen corresponding path program 1 times [2023-02-15 22:45:13,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:13,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103096438] [2023-02-15 22:45:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:13,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:13,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:13,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103096438] [2023-02-15 22:45:13,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103096438] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:13,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:13,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:13,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845974195] [2023-02-15 22:45:13,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:13,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:13,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:13,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:13,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:13,949 INFO L87 Difference]: Start difference. First operand has 136 states, 103 states have (on average 1.7087378640776698) internal successors, (176), 127 states have internal predecessors, (176), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 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) [2023-02-15 22:45:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:14,097 INFO L93 Difference]: Finished difference Result 324 states and 475 transitions. [2023-02-15 22:45:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:14,100 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 [2023-02-15 22:45:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:14,111 INFO L225 Difference]: With dead ends: 324 [2023-02-15 22:45:14,112 INFO L226 Difference]: Without dead ends: 160 [2023-02-15 22:45:14,117 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 [2023-02-15 22:45:14,121 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 87 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 502 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 [2023-02-15 22:45:14,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 502 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-15 22:45:14,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 147. [2023-02-15 22:45:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 119 states have (on average 1.546218487394958) internal successors, (184), 138 states have internal predecessors, (184), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:14,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 194 transitions. [2023-02-15 22:45:14,162 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 194 transitions. Word has length 9 [2023-02-15 22:45:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 194 transitions. [2023-02-15 22:45:14,163 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) [2023-02-15 22:45:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 194 transitions. [2023-02-15 22:45:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 22:45:14,165 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:14,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:14,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:45:14,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:14,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:14,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1816789482, now seen corresponding path program 1 times [2023-02-15 22:45:14,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:14,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891083982] [2023-02-15 22:45:14,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:14,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:14,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:14,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891083982] [2023-02-15 22:45:14,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891083982] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:14,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:14,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:14,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504406021] [2023-02-15 22:45:14,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:14,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:14,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:14,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:14,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:14,256 INFO L87 Difference]: Start difference. First operand 147 states and 194 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) [2023-02-15 22:45:14,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:14,452 INFO L93 Difference]: Finished difference Result 285 states and 362 transitions. [2023-02-15 22:45:14,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:14,453 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 [2023-02-15 22:45:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:14,454 INFO L225 Difference]: With dead ends: 285 [2023-02-15 22:45:14,455 INFO L226 Difference]: Without dead ends: 181 [2023-02-15 22:45:14,455 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 [2023-02-15 22:45:14,456 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 140 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 461 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 [2023-02-15 22:45:14,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 461 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:14,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-15 22:45:14,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-02-15 22:45:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 133 states have (on average 1.5263157894736843) internal successors, (203), 152 states have internal predecessors, (203), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:14,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 213 transitions. [2023-02-15 22:45:14,477 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 213 transitions. Word has length 14 [2023-02-15 22:45:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:14,478 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 213 transitions. [2023-02-15 22:45:14,478 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) [2023-02-15 22:45:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 213 transitions. [2023-02-15 22:45:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:45:14,482 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:14,482 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:14,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:45:14,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:14,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:14,483 INFO L85 PathProgramCache]: Analyzing trace with hash -461519741, now seen corresponding path program 1 times [2023-02-15 22:45:14,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:14,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568456832] [2023-02-15 22:45:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:14,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 22:45:14,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:14,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568456832] [2023-02-15 22:45:14,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568456832] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:14,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:14,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:45:14,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966438471] [2023-02-15 22:45:14,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:14,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:45:14,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:45:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:14,536 INFO L87 Difference]: Start difference. First operand 161 states and 213 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) [2023-02-15 22:45:14,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:14,570 INFO L93 Difference]: Finished difference Result 167 states and 220 transitions. [2023-02-15 22:45:14,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:45:14,571 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 [2023-02-15 22:45:14,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:14,573 INFO L225 Difference]: With dead ends: 167 [2023-02-15 22:45:14,573 INFO L226 Difference]: Without dead ends: 166 [2023-02-15 22:45:14,576 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 [2023-02-15 22:45:14,577 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 4 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 235 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 [2023-02-15 22:45:14,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 235 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:14,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-02-15 22:45:14,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 159. [2023-02-15 22:45:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 132 states have (on average 1.5151515151515151) internal successors, (200), 150 states have internal predecessors, (200), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2023-02-15 22:45:14,594 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 16 [2023-02-15 22:45:14,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:14,595 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2023-02-15 22:45:14,595 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) [2023-02-15 22:45:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2023-02-15 22:45:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 22:45:14,596 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:14,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:14,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:45:14,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:14,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2125395426, now seen corresponding path program 1 times [2023-02-15 22:45:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:14,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180408569] [2023-02-15 22:45:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:14,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:14,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:14,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180408569] [2023-02-15 22:45:14,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180408569] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:14,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:14,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:14,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296368817] [2023-02-15 22:45:14,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:14,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:14,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:14,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:14,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:14,685 INFO L87 Difference]: Start difference. First operand 159 states and 210 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) [2023-02-15 22:45:14,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:14,727 INFO L93 Difference]: Finished difference Result 261 states and 337 transitions. [2023-02-15 22:45:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:14,728 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 [2023-02-15 22:45:14,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:14,729 INFO L225 Difference]: With dead ends: 261 [2023-02-15 22:45:14,729 INFO L226 Difference]: Without dead ends: 107 [2023-02-15 22:45:14,730 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 [2023-02-15 22:45:14,731 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 7 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 355 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 [2023-02-15 22:45:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 355 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-02-15 22:45:14,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-02-15 22:45:14,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 80 states have (on average 1.525) internal successors, (122), 98 states have internal predecessors, (122), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2023-02-15 22:45:14,743 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 15 [2023-02-15 22:45:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:14,744 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2023-02-15 22:45:14,744 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) [2023-02-15 22:45:14,744 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2023-02-15 22:45:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 22:45:14,745 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:14,745 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:14,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:45:14,745 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1393582670, now seen corresponding path program 1 times [2023-02-15 22:45:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:14,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222614811] [2023-02-15 22:45:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:14,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:14,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222614811] [2023-02-15 22:45:14,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222614811] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:14,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:14,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:14,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417097992] [2023-02-15 22:45:14,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:14,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:14,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:14,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:14,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:14,809 INFO L87 Difference]: Start difference. First operand 107 states and 132 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) [2023-02-15 22:45:14,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:14,886 INFO L93 Difference]: Finished difference Result 157 states and 196 transitions. [2023-02-15 22:45:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:14,887 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 [2023-02-15 22:45:14,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:14,888 INFO L225 Difference]: With dead ends: 157 [2023-02-15 22:45:14,890 INFO L226 Difference]: Without dead ends: 153 [2023-02-15 22:45:14,891 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 [2023-02-15 22:45:14,894 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 166 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 348 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 [2023-02-15 22:45:14,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 348 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-02-15 22:45:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 139. [2023-02-15 22:45:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 112 states have (on average 1.5357142857142858) internal successors, (172), 129 states have internal predecessors, (172), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 182 transitions. [2023-02-15 22:45:14,914 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 182 transitions. Word has length 17 [2023-02-15 22:45:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:14,917 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 182 transitions. [2023-02-15 22:45:14,917 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) [2023-02-15 22:45:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 182 transitions. [2023-02-15 22:45:14,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 22:45:14,919 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:14,919 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:14,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 22:45:14,919 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:14,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1422210026, now seen corresponding path program 1 times [2023-02-15 22:45:14,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:14,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662756096] [2023-02-15 22:45:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:14,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:14,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:14,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:14,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662756096] [2023-02-15 22:45:14,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662756096] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:14,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:14,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:14,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490005182] [2023-02-15 22:45:14,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:14,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:14,977 INFO L87 Difference]: Start difference. First operand 139 states and 182 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) [2023-02-15 22:45:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:15,036 INFO L93 Difference]: Finished difference Result 163 states and 205 transitions. [2023-02-15 22:45:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:15,037 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 [2023-02-15 22:45:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:15,038 INFO L225 Difference]: With dead ends: 163 [2023-02-15 22:45:15,038 INFO L226 Difference]: Without dead ends: 160 [2023-02-15 22:45:15,038 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 [2023-02-15 22:45:15,039 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 166 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:15,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 348 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:15,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-02-15 22:45:15,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 145. [2023-02-15 22:45:15,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 119 states have (on average 1.495798319327731) internal successors, (178), 135 states have internal predecessors, (178), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 188 transitions. [2023-02-15 22:45:15,047 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 188 transitions. Word has length 17 [2023-02-15 22:45:15,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:15,048 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 188 transitions. [2023-02-15 22:45:15,048 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) [2023-02-15 22:45:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 188 transitions. [2023-02-15 22:45:15,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 22:45:15,050 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:15,050 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] [2023-02-15 22:45:15,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:45:15,051 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1169653443, now seen corresponding path program 1 times [2023-02-15 22:45:15,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:15,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338346448] [2023-02-15 22:45:15,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:15,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 22:45:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:15,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338346448] [2023-02-15 22:45:15,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338346448] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:15,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:15,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:15,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703452050] [2023-02-15 22:45:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:15,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:15,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:15,106 INFO L87 Difference]: Start difference. First operand 145 states and 188 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) [2023-02-15 22:45:15,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:15,136 INFO L93 Difference]: Finished difference Result 171 states and 219 transitions. [2023-02-15 22:45:15,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:15,137 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 [2023-02-15 22:45:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:15,138 INFO L225 Difference]: With dead ends: 171 [2023-02-15 22:45:15,138 INFO L226 Difference]: Without dead ends: 169 [2023-02-15 22:45:15,139 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 [2023-02-15 22:45:15,140 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 25 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 239 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 [2023-02-15 22:45:15,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 239 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:15,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-02-15 22:45:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 145. [2023-02-15 22:45:15,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 119 states have (on average 1.4873949579831933) internal successors, (177), 135 states have internal predecessors, (177), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 187 transitions. [2023-02-15 22:45:15,155 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 187 transitions. Word has length 21 [2023-02-15 22:45:15,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:15,156 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 187 transitions. [2023-02-15 22:45:15,156 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) [2023-02-15 22:45:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 187 transitions. [2023-02-15 22:45:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 22:45:15,159 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:15,159 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] [2023-02-15 22:45:15,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 22:45:15,159 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:15,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash 755952599, now seen corresponding path program 1 times [2023-02-15 22:45:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:15,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691835862] [2023-02-15 22:45:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:45:15,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 22:45:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:45:15,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 22:45:15,200 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 22:45:15,202 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-15 22:45:15,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-15 22:45:15,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-15 22:45:15,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-15 22:45:15,203 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-15 22:45:15,204 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-15 22:45:15,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-15 22:45:15,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-15 22:45:15,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-15 22:45:15,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-15 22:45:15,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-15 22:45:15,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-15 22:45:15,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-15 22:45:15,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-15 22:45:15,207 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-15 22:45:15,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-15 22:45:15,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-15 22:45:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-15 22:45:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-15 22:45:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-15 22:45:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-15 22:45:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-15 22:45:15,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 22:45:15,213 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:15,216 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 22:45:15,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:45:15 BoogieIcfgContainer [2023-02-15 22:45:15,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 22:45:15,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 22:45:15,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 22:45:15,242 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 22:45:15,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:13" (3/4) ... [2023-02-15 22:45:15,244 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 22:45:15,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 22:45:15,245 INFO L158 Benchmark]: Toolchain (without parser) took 2460.88ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 67.4MB in the beginning and 127.4MB in the end (delta: -60.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:45:15,245 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:45:15,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 67.3MB in the beginning and 125.4MB in the end (delta: -58.1MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-02-15 22:45:15,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.27ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 122.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:45:15,246 INFO L158 Benchmark]: Boogie Preprocessor took 39.45ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 121.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:45:15,246 INFO L158 Benchmark]: RCFGBuilder took 508.95ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 96.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-02-15 22:45:15,246 INFO L158 Benchmark]: TraceAbstraction took 1611.81ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 127.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:45:15,246 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 167.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:45:15,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 67.3MB in the beginning and 125.4MB in the end (delta: -58.1MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.27ms. Allocated memory is still 167.8MB. Free memory was 125.4MB in the beginning and 122.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.45ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 121.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.95ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 96.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1611.81ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 127.4MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 167.8MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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_add ; [L237] unsigned int zero ; [L238] int sa ; [L239] int sb ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L244] int tmp___3 ; [L245] int tmp___4 ; [L246] int tmp___5 ; [L247] int tmp___6 ; [L248] int tmp___7 ; [L249] int tmp___8 ; [L250] int tmp___9 ; [L251] int __retres23 ; VAL [ea=0, eb=0] [L255] 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] [L255] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L255] zero = base2flt(0, 0) [L256] 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 3 procedures, 136 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 595 mSDsluCounter, 2488 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1614 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 874 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=161occurred in iteration=2, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 93 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-15 22:45:15,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_1-2.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 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:45:17,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:45:17,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:45:17,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:45:17,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:45:17,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:45:17,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:45:17,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:45:17,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:45:17,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:45:17,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:45:17,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:45:17,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:45:17,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:45:17,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:45:17,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:45:17,065 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:45:17,066 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:45:17,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:45:17,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:45:17,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:45:17,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:45:17,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:45:17,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:45:17,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:45:17,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:45:17,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:45:17,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:45:17,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:45:17,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:45:17,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:45:17,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:45:17,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:45:17,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:45:17,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:45:17,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:45:17,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:45:17,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:45:17,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:45:17,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:45:17,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:45:17,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-15 22:45:17,119 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:45:17,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:45:17,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:45:17,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:45:17,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:45:17,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:45:17,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:45:17,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:45:17,123 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:45:17,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:45:17,123 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:45:17,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:45:17,125 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:45:17,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:45:17,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:45:17,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:45:17,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:45:17,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:17,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:45:17,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:45:17,128 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:45:17,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:45:17,128 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 22:45:17,128 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:45:17,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 [2023-02-15 22:45:17,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:45:17,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:45:17,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:45:17,400 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:45:17,400 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:45:17,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-02-15 22:45:18,379 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:45:18,590 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:45:18,590 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2023-02-15 22:45:18,599 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38527409d/97e93dc70ef34cc792726473aab64957/FLAG164e060f2 [2023-02-15 22:45:18,616 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38527409d/97e93dc70ef34cc792726473aab64957 [2023-02-15 22:45:18,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:45:18,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:45:18,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:18,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:45:18,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:45:18,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147411e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18, skipping insertion in model container [2023-02-15 22:45:18,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:45:18,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:45:18,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2023-02-15 22:45:18,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:18,863 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:45:18,874 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2023-02-15 22:45:18,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:18,920 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:45:18,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18 WrapperNode [2023-02-15 22:45:18,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:18,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:18,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:45:18,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:45:18,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,975 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 161 [2023-02-15 22:45:18,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:18,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:45:18,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:45:18,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:45:18,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:45:19,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:45:19,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:45:19,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:45:19,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:19,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:19,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:19,068 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) [2023-02-15 22:45:19,076 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 [2023-02-15 22:45:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:45:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-15 22:45:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 22:45:19,102 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 22:45:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:45:19,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:45:19,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 22:45:19,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 22:45:19,153 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:45:19,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:45:19,535 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:45:19,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:45:19,540 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:45:19,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:19 BoogieIcfgContainer [2023-02-15 22:45:19,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:45:19,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:45:19,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:45:19,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:45:19,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:45:18" (1/3) ... [2023-02-15 22:45:19,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4834a3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:19, skipping insertion in model container [2023-02-15 22:45:19,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18" (2/3) ... [2023-02-15 22:45:19,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4834a3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:19, skipping insertion in model container [2023-02-15 22:45:19,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:19" (3/3) ... [2023-02-15 22:45:19,547 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2023-02-15 22:45:19,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:45:19,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-02-15 22:45:19,599 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:45:19,603 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;@5f9d3cc7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:45:19,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-02-15 22:45:19,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 105 states have internal predecessors, (138), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 22:45:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:45:19,612 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:19,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:19,613 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:19,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash 256736734, now seen corresponding path program 1 times [2023-02-15 22:45:19,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:19,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518359198] [2023-02-15 22:45:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:19,625 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 [2023-02-15 22:45:19,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:19,628 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) [2023-02-15 22:45:19,652 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 [2023-02-15 22:45:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:19,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-15 22:45:19,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:19,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:19,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:19,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 22:45:19,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518359198] [2023-02-15 22:45:19,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518359198] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:19,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:19,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 22:45:19,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10411559] [2023-02-15 22:45:19,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:19,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 22:45:19,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 22:45:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 22:45:19,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 22:45:19,739 INFO L87 Difference]: Start difference. First operand has 114 states, 81 states have (on average 1.7037037037037037) internal successors, (138), 105 states have internal predecessors, (138), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 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) [2023-02-15 22:45:19,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:19,786 INFO L93 Difference]: Finished difference Result 216 states and 312 transitions. [2023-02-15 22:45:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 22:45:19,788 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 [2023-02-15 22:45:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:19,794 INFO L225 Difference]: With dead ends: 216 [2023-02-15 22:45:19,794 INFO L226 Difference]: Without dead ends: 77 [2023-02-15 22:45:19,799 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 [2023-02-15 22:45:19,802 INFO L413 NwaCegarLoop]: 139 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, 139 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 [2023-02-15 22:45:19,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:19,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-15 22:45:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-02-15 22:45:19,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 69 states have internal predecessors, (81), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:19,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2023-02-15 22:45:19,842 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 9 [2023-02-15 22:45:19,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:19,842 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2023-02-15 22:45:19,843 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) [2023-02-15 22:45:19,843 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2023-02-15 22:45:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:45:19,844 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:19,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:19,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:20,047 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 [2023-02-15 22:45:20,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash 255795468, now seen corresponding path program 1 times [2023-02-15 22:45:20,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:20,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149634357] [2023-02-15 22:45:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,049 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 [2023-02-15 22:45:20,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:20,050 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) [2023-02-15 22:45:20,051 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 [2023-02-15 22:45:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:45:20,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:20,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:20,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 22:45:20,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149634357] [2023-02-15 22:45:20,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149634357] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:20,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143175858] [2023-02-15 22:45:20,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:20,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 22:45:20,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:20,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:20,105 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) [2023-02-15 22:45:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,141 INFO L93 Difference]: Finished difference Result 159 states and 188 transitions. [2023-02-15 22:45:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 22:45:20,142 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 [2023-02-15 22:45:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,144 INFO L225 Difference]: With dead ends: 159 [2023-02-15 22:45:20,144 INFO L226 Difference]: Without dead ends: 85 [2023-02-15 22:45:20,145 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 [2023-02-15 22:45:20,145 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 [2023-02-15 22:45:20,146 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] [2023-02-15 22:45:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-02-15 22:45:20,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-02-15 22:45:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 73 states have internal predecessors, (85), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 95 transitions. [2023-02-15 22:45:20,153 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 95 transitions. Word has length 9 [2023-02-15 22:45:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,153 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 95 transitions. [2023-02-15 22:45:20,153 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) [2023-02-15 22:45:20,153 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 95 transitions. [2023-02-15 22:45:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:45:20,154 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,154 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,162 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 [2023-02-15 22:45:20,360 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 [2023-02-15 22:45:20,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash 405896156, now seen corresponding path program 1 times [2023-02-15 22:45:20,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:20,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419312652] [2023-02-15 22:45:20,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,362 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 [2023-02-15 22:45:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:20,365 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) [2023-02-15 22:45:20,366 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 [2023-02-15 22:45:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 22:45:20,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:20,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 22:45:20,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:20,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 22:45:20,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419312652] [2023-02-15 22:45:20,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419312652] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:45:20,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502501326] [2023-02-15 22:45:20,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:45:20,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 22:45:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:45:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:20,453 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) [2023-02-15 22:45:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,493 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2023-02-15 22:45:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:45:20,494 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 [2023-02-15 22:45:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,497 INFO L225 Difference]: With dead ends: 85 [2023-02-15 22:45:20,497 INFO L226 Difference]: Without dead ends: 84 [2023-02-15 22:45:20,497 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 [2023-02-15 22:45:20,499 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 [2023-02-15 22:45:20,501 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] [2023-02-15 22:45:20,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-15 22:45:20,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-02-15 22:45:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 72 states have internal predecessors, (84), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:20,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2023-02-15 22:45:20,514 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 16 [2023-02-15 22:45:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,515 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2023-02-15 22:45:20,515 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) [2023-02-15 22:45:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2023-02-15 22:45:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 22:45:20,516 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,516 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,524 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 [2023-02-15 22:45:20,722 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 [2023-02-15 22:45:20,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:20,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash 111631876, now seen corresponding path program 1 times [2023-02-15 22:45:20,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:20,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099019705] [2023-02-15 22:45:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,724 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 [2023-02-15 22:45:20,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:20,726 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) [2023-02-15 22:45:20,728 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 [2023-02-15 22:45:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 22:45:20,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 22:45:20,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:20,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 22:45:20,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099019705] [2023-02-15 22:45:20,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099019705] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:45:20,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554334097] [2023-02-15 22:45:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:45:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 22:45:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:45:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:20,777 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) [2023-02-15 22:45:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,806 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2023-02-15 22:45:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:45:20,807 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 [2023-02-15 22:45:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,807 INFO L225 Difference]: With dead ends: 84 [2023-02-15 22:45:20,807 INFO L226 Difference]: Without dead ends: 83 [2023-02-15 22:45:20,808 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 [2023-02-15 22:45:20,812 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 [2023-02-15 22:45:20,812 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] [2023-02-15 22:45:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-15 22:45:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2023-02-15 22:45:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 61 states have (on average 1.360655737704918) internal successors, (83), 71 states have internal predecessors, (83), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 93 transitions. [2023-02-15 22:45:20,817 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 93 transitions. Word has length 18 [2023-02-15 22:45:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,817 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 93 transitions. [2023-02-15 22:45:20,817 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) [2023-02-15 22:45:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 93 transitions. [2023-02-15 22:45:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 22:45:20,818 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,818 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,828 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 [2023-02-15 22:45:21,024 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 [2023-02-15 22:45:21,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 111699402, now seen corresponding path program 1 times [2023-02-15 22:45:21,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:21,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298292140] [2023-02-15 22:45:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,025 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 [2023-02-15 22:45:21,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:21,026 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) [2023-02-15 22:45:21,028 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 [2023-02-15 22:45:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:45:21,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:21,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:21,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 22:45:21,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298292140] [2023-02-15 22:45:21,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298292140] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:21,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:21,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892566431] [2023-02-15 22:45:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:21,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:21,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 22:45:21,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:21,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:21,108 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) [2023-02-15 22:45:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,314 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2023-02-15 22:45:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:21,314 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 [2023-02-15 22:45:21,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,315 INFO L225 Difference]: With dead ends: 102 [2023-02-15 22:45:21,315 INFO L226 Difference]: Without dead ends: 99 [2023-02-15 22:45:21,315 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 [2023-02-15 22:45:21,316 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 69 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:21,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 187 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:45:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-15 22:45:21,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 87. [2023-02-15 22:45:21,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 68 states have (on average 1.338235294117647) internal successors, (91), 78 states have internal predecessors, (91), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2023-02-15 22:45:21,321 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 18 [2023-02-15 22:45:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,321 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2023-02-15 22:45:21,322 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) [2023-02-15 22:45:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2023-02-15 22:45:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 22:45:21,322 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,323 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] [2023-02-15 22:45:21,333 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 (6)] Ended with exit code 0 [2023-02-15 22:45:21,528 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 [2023-02-15 22:45:21,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-02-15 22:45:21,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -962667073, now seen corresponding path program 1 times [2023-02-15 22:45:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 22:45:21,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085474771] [2023-02-15 22:45:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,530 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 [2023-02-15 22:45:21,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 22:45:21,531 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) [2023-02-15 22:45:21,533 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 [2023-02-15 22:45:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:45:21,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 22:45:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:45:21,584 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-15 22:45:21,587 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 22:45:21,588 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-02-15 22:45:21,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-02-15 22:45:21,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-02-15 22:45:21,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-02-15 22:45:21,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-02-15 22:45:21,590 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-02-15 22:45:21,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-02-15 22:45:21,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-02-15 22:45:21,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-02-15 22:45:21,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-02-15 22:45:21,591 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-02-15 22:45:21,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-02-15 22:45:21,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-02-15 22:45:21,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-02-15 22:45:21,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-02-15 22:45:21,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-02-15 22:45:21,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-02-15 22:45:21,600 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 [2023-02-15 22:45:21,799 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 [2023-02-15 22:45:21,803 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-15 22:45:21,805 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 22:45:21,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:45:21 BoogieIcfgContainer [2023-02-15 22:45:21,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 22:45:21,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 22:45:21,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 22:45:21,827 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 22:45:21,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:19" (3/4) ... [2023-02-15 22:45:21,829 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 22:45:21,856 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 22:45:21,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 22:45:21,857 INFO L158 Benchmark]: Toolchain (without parser) took 3237.23ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 55.4MB in the beginning and 41.9MB in the end (delta: 13.5MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,857 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory is still 34.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:45:21,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.55ms. Allocated memory is still 77.6MB. Free memory was 55.3MB in the beginning and 40.5MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.67ms. Allocated memory is still 77.6MB. Free memory was 40.5MB in the beginning and 38.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,858 INFO L158 Benchmark]: Boogie Preprocessor took 51.05ms. Allocated memory is still 77.6MB. Free memory was 38.4MB in the beginning and 36.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,858 INFO L158 Benchmark]: RCFGBuilder took 513.31ms. Allocated memory is still 77.6MB. Free memory was 36.6MB in the beginning and 43.1MB in the end (delta: -6.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,858 INFO L158 Benchmark]: TraceAbstraction took 2283.16ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.6MB in the beginning and 44.1MB in the end (delta: -1.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,859 INFO L158 Benchmark]: Witness Printer took 29.67ms. Allocated memory is still 94.4MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:45:21,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory is still 34.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.55ms. Allocated memory is still 77.6MB. Free memory was 55.3MB in the beginning and 40.5MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.67ms. Allocated memory is still 77.6MB. Free memory was 40.5MB in the beginning and 38.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.05ms. Allocated memory is still 77.6MB. Free memory was 38.4MB in the beginning and 36.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.31ms. Allocated memory is still 77.6MB. Free memory was 36.6MB in the beginning and 43.1MB in the end (delta: -6.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2283.16ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.6MB in the beginning and 44.1MB in the end (delta: -1.5MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 29.67ms. Allocated memory is still 94.4MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). 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 - 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_add ; [L237] unsigned int zero ; [L238] int sa ; [L239] int sb ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L244] int tmp___3 ; [L245] int tmp___4 ; [L246] int tmp___5 ; [L247] int tmp___6 ; [L248] int tmp___7 ; [L249] int tmp___8 ; [L250] int tmp___9 ; [L251] int __retres23 ; [L255] 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] [L255] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0] [L255] zero = base2flt(0, 0) [L256] 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 3 procedures, 114 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.2s 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, 481 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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! [2023-02-15 22:45:21,876 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)