./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa5701cbf2aecb18d72b6e5744b88307065d31ab .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa5701cbf2aecb18d72b6e5744b88307065d31ab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 15:01:37,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:01:37,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:01:37,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:01:37,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:01:37,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:01:37,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:01:37,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:01:37,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:01:37,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:01:37,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:01:37,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:01:37,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:01:37,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:01:37,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:01:37,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:01:37,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:01:37,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:01:37,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:01:37,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:01:37,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:01:37,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:01:37,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:01:37,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:01:37,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:01:37,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:01:37,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:01:37,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:01:37,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:01:37,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:01:37,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:01:37,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:01:37,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:01:37,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:01:37,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:01:37,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:01:37,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:01:37,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:01:37,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:01:37,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:01:37,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:01:37,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 15:01:37,433 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:01:37,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:01:37,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:01:37,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:01:37,436 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:01:37,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:01:37,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:01:37,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 15:01:37,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:01:37,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:01:37,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:01:37,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:01:37,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:01:37,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:01:37,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:01:37,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:01:37,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:01:37,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:01:37,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:01:37,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:01:37,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:01:37,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:01:37,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:01:37,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:01:37,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:01:37,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 15:01:37,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 15:01:37,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:01:37,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:01:37,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! call(__VERIFIER_error())) ) 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 -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2020-07-28 15:01:37,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:01:37,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:01:37,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:01:37,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:01:37,763 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:01:37,763 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2020-07-28 15:01:37,832 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c211426fd/2da561d602204db0955388a8da6111c5/FLAG40fe47acb [2020-07-28 15:01:38,336 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:01:38,338 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2020-07-28 15:01:38,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c211426fd/2da561d602204db0955388a8da6111c5/FLAG40fe47acb [2020-07-28 15:01:38,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c211426fd/2da561d602204db0955388a8da6111c5 [2020-07-28 15:01:38,656 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:01:38,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:01:38,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:01:38,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:01:38,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:01:38,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:01:38" (1/1) ... [2020-07-28 15:01:38,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f453bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:38, skipping insertion in model container [2020-07-28 15:01:38,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:01:38" (1/1) ... [2020-07-28 15:01:38,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:01:38,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:01:38,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:01:38,954 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:01:39,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:01:39,107 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:01:39,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39 WrapperNode [2020-07-28 15:01:39,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:01:39,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:01:39,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:01:39,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:01:39,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:01:39,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:01:39,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:01:39,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:01:39,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... [2020-07-28 15:01:39,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:01:39,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:01:39,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:01:39,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:01:39,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:01:39,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:01:39,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:01:39,982 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:01:39,983 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-07-28 15:01:39,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:01:39 BoogieIcfgContainer [2020-07-28 15:01:39,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:01:39,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:01:39,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:01:39,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:01:39,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:01:38" (1/3) ... [2020-07-28 15:01:40,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d19eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:01:39, skipping insertion in model container [2020-07-28 15:01:40,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:39" (2/3) ... [2020-07-28 15:01:40,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40d19eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:01:40, skipping insertion in model container [2020-07-28 15:01:40,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:01:39" (3/3) ... [2020-07-28 15:01:40,003 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2020-07-28 15:01:40,014 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:01:40,025 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-28 15:01:40,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-28 15:01:40,067 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:01:40,068 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:01:40,068 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:01:40,068 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:01:40,069 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:01:40,070 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:01:40,070 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:01:40,070 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:01:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-07-28 15:01:40,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 15:01:40,108 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:40,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:40,110 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:40,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:40,117 INFO L82 PathProgramCache]: Analyzing trace with hash 299467151, now seen corresponding path program 1 times [2020-07-28 15:01:40,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 15:01:40,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811435775] [2020-07-28 15:01:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 15:01:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:40,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 15:01:40,346 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 15:01:40,356 INFO L168 Benchmark]: Toolchain (without parser) took 1697.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -101.8 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2020-07-28 15:01:40,357 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:01:40,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 15:01:40,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:01:40,360 INFO L168 Benchmark]: Boogie Preprocessor took 39.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 15:01:40,361 INFO L168 Benchmark]: RCFGBuilder took 778.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2020-07-28 15:01:40,362 INFO L168 Benchmark]: TraceAbstraction took 358.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-07-28 15:01:40,366 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 448.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 778.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 358.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 15:01:42,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 15:01:42,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 15:01:42,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 15:01:42,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 15:01:42,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 15:01:42,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 15:01:42,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 15:01:42,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 15:01:42,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 15:01:42,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 15:01:42,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 15:01:42,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 15:01:42,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 15:01:42,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 15:01:42,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 15:01:42,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 15:01:42,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 15:01:42,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 15:01:42,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 15:01:42,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 15:01:42,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 15:01:42,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 15:01:42,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 15:01:42,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 15:01:42,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 15:01:42,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 15:01:42,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 15:01:42,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 15:01:42,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 15:01:42,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 15:01:42,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 15:01:42,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 15:01:42,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 15:01:42,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 15:01:42,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 15:01:42,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 15:01:42,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 15:01:42,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 15:01:42,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 15:01:42,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 15:01:42,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 15:01:42,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 15:01:42,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 15:01:42,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 15:01:42,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 15:01:42,324 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 15:01:42,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 15:01:42,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 15:01:42,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 15:01:42,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 15:01:42,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 15:01:42,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 15:01:42,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 15:01:42,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 15:01:42,327 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 15:01:42,328 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 15:01:42,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 15:01:42,328 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 15:01:42,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 15:01:42,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 15:01:42,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 15:01:42,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 15:01:42,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 15:01:42,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:01:42,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 15:01:42,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 15:01:42,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 15:01:42,331 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 15:01:42,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 15:01:42,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 15:01:42,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 15:01:42,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 15:01:42,332 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 ! call(__VERIFIER_error())) ) 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 -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2020-07-28 15:01:42,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 15:01:42,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 15:01:42,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 15:01:42,642 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 15:01:42,643 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 15:01:42,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2020-07-28 15:01:42,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb73def21/f56f05e6137448e0892bc4b4afe9a399/FLAG4cd7c6e69 [2020-07-28 15:01:43,191 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 15:01:43,192 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2020-07-28 15:01:43,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb73def21/f56f05e6137448e0892bc4b4afe9a399/FLAG4cd7c6e69 [2020-07-28 15:01:43,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb73def21/f56f05e6137448e0892bc4b4afe9a399 [2020-07-28 15:01:43,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 15:01:43,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 15:01:43,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 15:01:43,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 15:01:43,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 15:01:43,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:43,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c4e00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43, skipping insertion in model container [2020-07-28 15:01:43,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:43,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 15:01:43,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 15:01:43,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:01:43,786 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 15:01:43,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 15:01:43,929 INFO L208 MainTranslator]: Completed translation [2020-07-28 15:01:43,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43 WrapperNode [2020-07-28 15:01:43,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 15:01:43,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 15:01:43,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 15:01:43,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 15:01:43,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:43,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:43,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 15:01:43,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 15:01:43,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 15:01:43,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 15:01:44,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... [2020-07-28 15:01:44,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 15:01:44,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 15:01:44,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 15:01:44,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 15:01:44,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 15:01:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 15:01:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 15:01:44,779 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 15:01:44,779 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-07-28 15:01:44,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:01:44 BoogieIcfgContainer [2020-07-28 15:01:44,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 15:01:44,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 15:01:44,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 15:01:44,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 15:01:44,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 03:01:43" (1/3) ... [2020-07-28 15:01:44,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dc78e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:01:44, skipping insertion in model container [2020-07-28 15:01:44,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 03:01:43" (2/3) ... [2020-07-28 15:01:44,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dc78e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 03:01:44, skipping insertion in model container [2020-07-28 15:01:44,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:01:44" (3/3) ... [2020-07-28 15:01:44,792 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2020-07-28 15:01:44,802 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 15:01:44,810 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-28 15:01:44,824 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-28 15:01:44,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 15:01:44,855 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 15:01:44,856 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 15:01:44,856 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 15:01:44,857 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 15:01:44,857 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 15:01:44,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 15:01:44,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 15:01:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-07-28 15:01:44,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 15:01:44,894 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:44,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:44,896 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:44,904 INFO L82 PathProgramCache]: Analyzing trace with hash 299467151, now seen corresponding path program 1 times [2020-07-28 15:01:44,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:44,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153336832] [2020-07-28 15:01:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:45,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 15:01:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:45,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:45,115 INFO L280 TraceCheckUtils]: 0: Hoare triple {88#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,116 INFO L280 TraceCheckUtils]: 1: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {88#true} is VALID [2020-07-28 15:01:45,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {88#true} base2flt_#res := base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,117 INFO L280 TraceCheckUtils]: 3: Hoare triple {88#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,118 INFO L280 TraceCheckUtils]: 4: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {88#true} is VALID [2020-07-28 15:01:45,118 INFO L280 TraceCheckUtils]: 5: Hoare triple {88#true} base2flt_#res := base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,119 INFO L280 TraceCheckUtils]: 6: Hoare triple {88#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,121 INFO L280 TraceCheckUtils]: 7: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {114#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:45,122 INFO L280 TraceCheckUtils]: 8: Hoare triple {114#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {118#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:45,123 INFO L280 TraceCheckUtils]: 9: Hoare triple {118#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {122#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:45,125 INFO L280 TraceCheckUtils]: 10: Hoare triple {122#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {89#false} is VALID [2020-07-28 15:01:45,125 INFO L280 TraceCheckUtils]: 11: Hoare triple {89#false} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {89#false} is VALID [2020-07-28 15:01:45,125 INFO L280 TraceCheckUtils]: 12: Hoare triple {89#false} assume 0bv32 == __VERIFIER_assert_~cond; {89#false} is VALID [2020-07-28 15:01:45,126 INFO L280 TraceCheckUtils]: 13: Hoare triple {89#false} assume !false; {89#false} is VALID [2020-07-28 15:01:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:45,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:45,210 INFO L280 TraceCheckUtils]: 13: Hoare triple {89#false} assume !false; {89#false} is VALID [2020-07-28 15:01:45,211 INFO L280 TraceCheckUtils]: 12: Hoare triple {89#false} assume 0bv32 == __VERIFIER_assert_~cond; {89#false} is VALID [2020-07-28 15:01:45,211 INFO L280 TraceCheckUtils]: 11: Hoare triple {89#false} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {89#false} is VALID [2020-07-28 15:01:45,213 INFO L280 TraceCheckUtils]: 10: Hoare triple {122#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {89#false} is VALID [2020-07-28 15:01:45,216 INFO L280 TraceCheckUtils]: 9: Hoare triple {118#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {122#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:45,217 INFO L280 TraceCheckUtils]: 8: Hoare triple {114#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {118#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:45,218 INFO L280 TraceCheckUtils]: 7: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {114#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:45,218 INFO L280 TraceCheckUtils]: 6: Hoare triple {88#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,219 INFO L280 TraceCheckUtils]: 5: Hoare triple {88#true} base2flt_#res := base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,219 INFO L280 TraceCheckUtils]: 4: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {88#true} is VALID [2020-07-28 15:01:45,220 INFO L280 TraceCheckUtils]: 3: Hoare triple {88#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {88#true} base2flt_#res := base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,220 INFO L280 TraceCheckUtils]: 1: Hoare triple {88#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {88#true} is VALID [2020-07-28 15:01:45,221 INFO L280 TraceCheckUtils]: 0: Hoare triple {88#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {88#true} is VALID [2020-07-28 15:01:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:45,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153336832] [2020-07-28 15:01:45,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:45,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-07-28 15:01:45,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107504108] [2020-07-28 15:01:45,231 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 15:01:45,233 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:45,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 15:01:45,262 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:45,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 15:01:45,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:45,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 15:01:45,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 15:01:45,273 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 5 states. [2020-07-28 15:01:46,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:46,228 INFO L93 Difference]: Finished difference Result 230 states and 332 transitions. [2020-07-28 15:01:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 15:01:46,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-07-28 15:01:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 15:01:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2020-07-28 15:01:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 15:01:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2020-07-28 15:01:46,253 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 332 transitions. [2020-07-28 15:01:46,758 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 332 edges. 332 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:46,778 INFO L225 Difference]: With dead ends: 230 [2020-07-28 15:01:46,778 INFO L226 Difference]: Without dead ends: 138 [2020-07-28 15:01:46,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 15:01:46,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-07-28 15:01:46,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 85. [2020-07-28 15:01:46,840 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:46,841 INFO L82 GeneralOperation]: Start isEquivalent. First operand 138 states. Second operand 85 states. [2020-07-28 15:01:46,842 INFO L74 IsIncluded]: Start isIncluded. First operand 138 states. Second operand 85 states. [2020-07-28 15:01:46,842 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 85 states. [2020-07-28 15:01:46,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:46,852 INFO L93 Difference]: Finished difference Result 138 states and 175 transitions. [2020-07-28 15:01:46,852 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2020-07-28 15:01:46,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:46,854 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:46,855 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 138 states. [2020-07-28 15:01:46,855 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 138 states. [2020-07-28 15:01:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:46,864 INFO L93 Difference]: Finished difference Result 138 states and 175 transitions. [2020-07-28 15:01:46,865 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 175 transitions. [2020-07-28 15:01:46,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:46,867 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:46,867 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:46,867 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 15:01:46,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 114 transitions. [2020-07-28 15:01:46,874 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 114 transitions. Word has length 14 [2020-07-28 15:01:46,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:46,874 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 114 transitions. [2020-07-28 15:01:46,875 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 15:01:46,875 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 114 transitions. [2020-07-28 15:01:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 15:01:46,876 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:46,876 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:47,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 15:01:47,091 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:47,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:47,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1540311893, now seen corresponding path program 1 times [2020-07-28 15:01:47,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:47,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813881822] [2020-07-28 15:01:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:47,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 15:01:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:47,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:47,201 INFO L280 TraceCheckUtils]: 0: Hoare triple {873#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,201 INFO L280 TraceCheckUtils]: 1: Hoare triple {873#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {873#true} is VALID [2020-07-28 15:01:47,202 INFO L280 TraceCheckUtils]: 2: Hoare triple {873#true} base2flt_#res := base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,202 INFO L280 TraceCheckUtils]: 3: Hoare triple {873#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,203 INFO L280 TraceCheckUtils]: 4: Hoare triple {873#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {890#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:47,204 INFO L280 TraceCheckUtils]: 5: Hoare triple {890#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {894#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:47,205 INFO L280 TraceCheckUtils]: 6: Hoare triple {894#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,206 INFO L280 TraceCheckUtils]: 7: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,207 INFO L280 TraceCheckUtils]: 8: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,208 INFO L280 TraceCheckUtils]: 9: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,209 INFO L280 TraceCheckUtils]: 10: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvult32(addflt_~a, addflt_~b); {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,210 INFO L280 TraceCheckUtils]: 11: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,211 INFO L280 TraceCheckUtils]: 12: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} addflt_#res := addflt_~__retres10~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,212 INFO L280 TraceCheckUtils]: 13: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {920#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:47,212 INFO L280 TraceCheckUtils]: 14: Hoare triple {920#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {874#false} is VALID [2020-07-28 15:01:47,213 INFO L280 TraceCheckUtils]: 15: Hoare triple {874#false} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {874#false} is VALID [2020-07-28 15:01:47,213 INFO L280 TraceCheckUtils]: 16: Hoare triple {874#false} assume 0bv32 == __VERIFIER_assert_~cond; {874#false} is VALID [2020-07-28 15:01:47,214 INFO L280 TraceCheckUtils]: 17: Hoare triple {874#false} assume !false; {874#false} is VALID [2020-07-28 15:01:47,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:47,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:47,275 INFO L280 TraceCheckUtils]: 17: Hoare triple {874#false} assume !false; {874#false} is VALID [2020-07-28 15:01:47,276 INFO L280 TraceCheckUtils]: 16: Hoare triple {874#false} assume 0bv32 == __VERIFIER_assert_~cond; {874#false} is VALID [2020-07-28 15:01:47,276 INFO L280 TraceCheckUtils]: 15: Hoare triple {874#false} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {874#false} is VALID [2020-07-28 15:01:47,278 INFO L280 TraceCheckUtils]: 14: Hoare triple {920#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {874#false} is VALID [2020-07-28 15:01:47,279 INFO L280 TraceCheckUtils]: 13: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {920#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:47,279 INFO L280 TraceCheckUtils]: 12: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} addflt_#res := addflt_~__retres10~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,285 INFO L280 TraceCheckUtils]: 11: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,285 INFO L280 TraceCheckUtils]: 10: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvult32(addflt_~a, addflt_~b); {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,286 INFO L280 TraceCheckUtils]: 9: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,287 INFO L280 TraceCheckUtils]: 8: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,288 INFO L280 TraceCheckUtils]: 7: Hoare triple {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,289 INFO L280 TraceCheckUtils]: 6: Hoare triple {894#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {898#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:47,290 INFO L280 TraceCheckUtils]: 5: Hoare triple {890#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {894#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:47,291 INFO L280 TraceCheckUtils]: 4: Hoare triple {873#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {890#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:47,291 INFO L280 TraceCheckUtils]: 3: Hoare triple {873#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,291 INFO L280 TraceCheckUtils]: 2: Hoare triple {873#true} base2flt_#res := base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {873#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {873#true} is VALID [2020-07-28 15:01:47,292 INFO L280 TraceCheckUtils]: 0: Hoare triple {873#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {873#true} is VALID [2020-07-28 15:01:47,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:47,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813881822] [2020-07-28 15:01:47,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:47,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2020-07-28 15:01:47,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26794306] [2020-07-28 15:01:47,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-28 15:01:47,301 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:47,301 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 15:01:47,332 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:47,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 15:01:47,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:47,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 15:01:47,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-28 15:01:47,333 INFO L87 Difference]: Start difference. First operand 85 states and 114 transitions. Second operand 6 states. [2020-07-28 15:01:48,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:48,347 INFO L93 Difference]: Finished difference Result 225 states and 284 transitions. [2020-07-28 15:01:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-28 15:01:48,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-28 15:01:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:48,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 284 transitions. [2020-07-28 15:01:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 284 transitions. [2020-07-28 15:01:48,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 284 transitions. [2020-07-28 15:01:48,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 284 edges. 284 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:48,745 INFO L225 Difference]: With dead ends: 225 [2020-07-28 15:01:48,746 INFO L226 Difference]: Without dead ends: 199 [2020-07-28 15:01:48,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-28 15:01:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-07-28 15:01:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 118. [2020-07-28 15:01:48,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:48,810 INFO L82 GeneralOperation]: Start isEquivalent. First operand 199 states. Second operand 118 states. [2020-07-28 15:01:48,810 INFO L74 IsIncluded]: Start isIncluded. First operand 199 states. Second operand 118 states. [2020-07-28 15:01:48,810 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 118 states. [2020-07-28 15:01:48,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:48,819 INFO L93 Difference]: Finished difference Result 199 states and 249 transitions. [2020-07-28 15:01:48,819 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 249 transitions. [2020-07-28 15:01:48,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:48,821 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:48,821 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 199 states. [2020-07-28 15:01:48,821 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 199 states. [2020-07-28 15:01:48,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:48,829 INFO L93 Difference]: Finished difference Result 199 states and 249 transitions. [2020-07-28 15:01:48,829 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 249 transitions. [2020-07-28 15:01:48,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:48,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:48,831 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:48,831 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:48,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-28 15:01:48,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 161 transitions. [2020-07-28 15:01:48,836 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 161 transitions. Word has length 18 [2020-07-28 15:01:48,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:48,836 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 161 transitions. [2020-07-28 15:01:48,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 15:01:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 161 transitions. [2020-07-28 15:01:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 15:01:48,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:48,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:49,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 15:01:49,055 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1417428804, now seen corresponding path program 1 times [2020-07-28 15:01:49,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:49,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146927944] [2020-07-28 15:01:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:49,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 15:01:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:49,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:49,169 INFO L280 TraceCheckUtils]: 0: Hoare triple {1847#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {1847#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {1847#true} is VALID [2020-07-28 15:01:49,170 INFO L280 TraceCheckUtils]: 2: Hoare triple {1847#true} base2flt_#res := base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,170 INFO L280 TraceCheckUtils]: 3: Hoare triple {1847#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,171 INFO L280 TraceCheckUtils]: 4: Hoare triple {1847#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {1864#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:49,172 INFO L280 TraceCheckUtils]: 5: Hoare triple {1864#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {1868#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:49,172 INFO L280 TraceCheckUtils]: 6: Hoare triple {1868#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,173 INFO L280 TraceCheckUtils]: 7: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !(0bv32 == base2flt_~m); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,173 INFO L280 TraceCheckUtils]: 8: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvult32(base2flt_~m, 16777216bv32); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,176 INFO L280 TraceCheckUtils]: 9: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !false; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,177 INFO L280 TraceCheckUtils]: 10: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvuge32(base2flt_~m, 33554432bv32); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,177 INFO L280 TraceCheckUtils]: 11: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,178 INFO L280 TraceCheckUtils]: 12: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,178 INFO L280 TraceCheckUtils]: 13: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {1894#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:49,179 INFO L280 TraceCheckUtils]: 14: Hoare triple {1894#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {1898#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:49,180 INFO L280 TraceCheckUtils]: 15: Hoare triple {1898#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {1848#false} is VALID [2020-07-28 15:01:49,180 INFO L280 TraceCheckUtils]: 16: Hoare triple {1848#false} assume 0bv32 == __VERIFIER_assert_~cond; {1848#false} is VALID [2020-07-28 15:01:49,180 INFO L280 TraceCheckUtils]: 17: Hoare triple {1848#false} assume !false; {1848#false} is VALID [2020-07-28 15:01:49,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:49,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:49,228 INFO L280 TraceCheckUtils]: 17: Hoare triple {1848#false} assume !false; {1848#false} is VALID [2020-07-28 15:01:49,229 INFO L280 TraceCheckUtils]: 16: Hoare triple {1848#false} assume 0bv32 == __VERIFIER_assert_~cond; {1848#false} is VALID [2020-07-28 15:01:49,230 INFO L280 TraceCheckUtils]: 15: Hoare triple {1898#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {1848#false} is VALID [2020-07-28 15:01:49,232 INFO L280 TraceCheckUtils]: 14: Hoare triple {1894#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {1898#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:49,233 INFO L280 TraceCheckUtils]: 13: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {1894#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:49,234 INFO L280 TraceCheckUtils]: 12: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,235 INFO L280 TraceCheckUtils]: 11: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,235 INFO L280 TraceCheckUtils]: 10: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvuge32(base2flt_~m, 33554432bv32); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,236 INFO L280 TraceCheckUtils]: 9: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !false; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,236 INFO L280 TraceCheckUtils]: 8: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !~bvult32(base2flt_~m, 16777216bv32); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,237 INFO L280 TraceCheckUtils]: 7: Hoare triple {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume !(0bv32 == base2flt_~m); {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,238 INFO L280 TraceCheckUtils]: 6: Hoare triple {1868#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1872#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:49,239 INFO L280 TraceCheckUtils]: 5: Hoare triple {1864#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {1868#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:49,240 INFO L280 TraceCheckUtils]: 4: Hoare triple {1847#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {1864#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:49,241 INFO L280 TraceCheckUtils]: 3: Hoare triple {1847#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,241 INFO L280 TraceCheckUtils]: 2: Hoare triple {1847#true} base2flt_#res := base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,241 INFO L280 TraceCheckUtils]: 1: Hoare triple {1847#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {1847#true} is VALID [2020-07-28 15:01:49,241 INFO L280 TraceCheckUtils]: 0: Hoare triple {1847#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {1847#true} is VALID [2020-07-28 15:01:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:49,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146927944] [2020-07-28 15:01:49,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:49,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-07-28 15:01:49,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291442068] [2020-07-28 15:01:49,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-07-28 15:01:49,244 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:49,244 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 15:01:49,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:49,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 15:01:49,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:49,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 15:01:49,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-28 15:01:49,270 INFO L87 Difference]: Start difference. First operand 118 states and 161 transitions. Second operand 7 states. [2020-07-28 15:01:50,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:50,338 INFO L93 Difference]: Finished difference Result 213 states and 265 transitions. [2020-07-28 15:01:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-28 15:01:50,339 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-07-28 15:01:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:50,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 15:01:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 265 transitions. [2020-07-28 15:01:50,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 15:01:50,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 265 transitions. [2020-07-28 15:01:50,348 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 265 transitions. [2020-07-28 15:01:50,735 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 265 edges. 265 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:50,739 INFO L225 Difference]: With dead ends: 213 [2020-07-28 15:01:50,741 INFO L226 Difference]: Without dead ends: 184 [2020-07-28 15:01:50,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2020-07-28 15:01:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-07-28 15:01:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 107. [2020-07-28 15:01:50,791 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:50,791 INFO L82 GeneralOperation]: Start isEquivalent. First operand 184 states. Second operand 107 states. [2020-07-28 15:01:50,791 INFO L74 IsIncluded]: Start isIncluded. First operand 184 states. Second operand 107 states. [2020-07-28 15:01:50,792 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 107 states. [2020-07-28 15:01:50,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:50,798 INFO L93 Difference]: Finished difference Result 184 states and 230 transitions. [2020-07-28 15:01:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 230 transitions. [2020-07-28 15:01:50,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:50,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:50,800 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 184 states. [2020-07-28 15:01:50,800 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 184 states. [2020-07-28 15:01:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:50,808 INFO L93 Difference]: Finished difference Result 184 states and 230 transitions. [2020-07-28 15:01:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 230 transitions. [2020-07-28 15:01:50,809 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:50,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:50,826 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:50,827 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:50,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-28 15:01:50,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 143 transitions. [2020-07-28 15:01:50,831 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 143 transitions. Word has length 18 [2020-07-28 15:01:50,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:50,832 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 143 transitions. [2020-07-28 15:01:50,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 15:01:50,832 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 143 transitions. [2020-07-28 15:01:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 15:01:50,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:50,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:51,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 15:01:51,047 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:51,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:51,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1094887938, now seen corresponding path program 1 times [2020-07-28 15:01:51,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:51,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876321833] [2020-07-28 15:01:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:51,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 15:01:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:51,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:51,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {2771#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2771#true} is VALID [2020-07-28 15:01:51,187 INFO L280 TraceCheckUtils]: 2: Hoare triple {2771#true} base2flt_#res := base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,188 INFO L280 TraceCheckUtils]: 3: Hoare triple {2771#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,188 INFO L280 TraceCheckUtils]: 4: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2771#true} is VALID [2020-07-28 15:01:51,188 INFO L280 TraceCheckUtils]: 5: Hoare triple {2771#true} base2flt_#res := base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,188 INFO L280 TraceCheckUtils]: 6: Hoare triple {2771#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,193 INFO L280 TraceCheckUtils]: 7: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2797#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:51,194 INFO L280 TraceCheckUtils]: 8: Hoare triple {2797#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {2801#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:51,195 INFO L280 TraceCheckUtils]: 9: Hoare triple {2801#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,195 INFO L280 TraceCheckUtils]: 10: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume !~bvult32(addflt_~a, addflt_~b); {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,196 INFO L280 TraceCheckUtils]: 11: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,196 INFO L280 TraceCheckUtils]: 12: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} addflt_#res := addflt_~__retres10~0; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,200 INFO L280 TraceCheckUtils]: 13: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:51,201 INFO L280 TraceCheckUtils]: 14: Hoare triple {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume !~bvult32(addflt_~a, addflt_~b); {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:51,202 INFO L280 TraceCheckUtils]: 15: Hoare triple {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {2825#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} is VALID [2020-07-28 15:01:51,202 INFO L280 TraceCheckUtils]: 16: Hoare triple {2825#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {2829#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:51,203 INFO L280 TraceCheckUtils]: 17: Hoare triple {2829#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {2833#(= ULTIMATE.start_main_~r_add2~0 (_ bv0 32))} is VALID [2020-07-28 15:01:51,204 INFO L280 TraceCheckUtils]: 18: Hoare triple {2833#(= ULTIMATE.start_main_~r_add2~0 (_ bv0 32))} assume ~bvult32(main_~r_add1~0, main_~r_add2~0);main_~tmp___0~0 := 4294967295bv32; {2772#false} is VALID [2020-07-28 15:01:51,204 INFO L280 TraceCheckUtils]: 19: Hoare triple {2772#false} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {2772#false} is VALID [2020-07-28 15:01:51,204 INFO L280 TraceCheckUtils]: 20: Hoare triple {2772#false} assume 0bv32 == __VERIFIER_assert_~cond; {2772#false} is VALID [2020-07-28 15:01:51,204 INFO L280 TraceCheckUtils]: 21: Hoare triple {2772#false} assume !false; {2772#false} is VALID [2020-07-28 15:01:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:51,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:51,279 INFO L280 TraceCheckUtils]: 21: Hoare triple {2772#false} assume !false; {2772#false} is VALID [2020-07-28 15:01:51,279 INFO L280 TraceCheckUtils]: 20: Hoare triple {2772#false} assume 0bv32 == __VERIFIER_assert_~cond; {2772#false} is VALID [2020-07-28 15:01:51,279 INFO L280 TraceCheckUtils]: 19: Hoare triple {2772#false} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {2772#false} is VALID [2020-07-28 15:01:51,280 INFO L280 TraceCheckUtils]: 18: Hoare triple {2833#(= ULTIMATE.start_main_~r_add2~0 (_ bv0 32))} assume ~bvult32(main_~r_add1~0, main_~r_add2~0);main_~tmp___0~0 := 4294967295bv32; {2772#false} is VALID [2020-07-28 15:01:51,281 INFO L280 TraceCheckUtils]: 17: Hoare triple {2829#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {2833#(= ULTIMATE.start_main_~r_add2~0 (_ bv0 32))} is VALID [2020-07-28 15:01:51,281 INFO L280 TraceCheckUtils]: 16: Hoare triple {2825#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {2829#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:51,283 INFO L280 TraceCheckUtils]: 15: Hoare triple {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {2825#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} is VALID [2020-07-28 15:01:51,284 INFO L280 TraceCheckUtils]: 14: Hoare triple {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume !~bvult32(addflt_~a, addflt_~b); {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:51,285 INFO L280 TraceCheckUtils]: 13: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {2818#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:51,285 INFO L280 TraceCheckUtils]: 12: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} addflt_#res := addflt_~__retres10~0; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,286 INFO L280 TraceCheckUtils]: 11: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,286 INFO L280 TraceCheckUtils]: 10: Hoare triple {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume !~bvult32(addflt_~a, addflt_~b); {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,287 INFO L280 TraceCheckUtils]: 9: Hoare triple {2801#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {2805#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:51,287 INFO L280 TraceCheckUtils]: 8: Hoare triple {2797#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {2801#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:51,289 INFO L280 TraceCheckUtils]: 7: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2797#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:51,289 INFO L280 TraceCheckUtils]: 6: Hoare triple {2771#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,290 INFO L280 TraceCheckUtils]: 5: Hoare triple {2771#true} base2flt_#res := base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,290 INFO L280 TraceCheckUtils]: 4: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2771#true} is VALID [2020-07-28 15:01:51,290 INFO L280 TraceCheckUtils]: 3: Hoare triple {2771#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,290 INFO L280 TraceCheckUtils]: 2: Hoare triple {2771#true} base2flt_#res := base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,290 INFO L280 TraceCheckUtils]: 1: Hoare triple {2771#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {2771#true} is VALID [2020-07-28 15:01:51,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {2771#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {2771#true} is VALID [2020-07-28 15:01:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:51,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876321833] [2020-07-28 15:01:51,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:51,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-07-28 15:01:51,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676900930] [2020-07-28 15:01:51,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-07-28 15:01:51,292 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:51,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 15:01:51,316 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:51,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 15:01:51,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:51,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 15:01:51,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-28 15:01:51,317 INFO L87 Difference]: Start difference. First operand 107 states and 143 transitions. Second operand 9 states. [2020-07-28 15:01:52,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:52,681 INFO L93 Difference]: Finished difference Result 182 states and 229 transitions. [2020-07-28 15:01:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 15:01:52,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-07-28 15:01:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:52,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 15:01:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 197 transitions. [2020-07-28 15:01:52,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 15:01:52,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 197 transitions. [2020-07-28 15:01:52,693 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 197 transitions. [2020-07-28 15:01:52,952 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 197 edges. 197 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:52,957 INFO L225 Difference]: With dead ends: 182 [2020-07-28 15:01:52,957 INFO L226 Difference]: Without dead ends: 178 [2020-07-28 15:01:52,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-07-28 15:01:52,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-28 15:01:53,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 124. [2020-07-28 15:01:53,011 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:53,012 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states. Second operand 124 states. [2020-07-28 15:01:53,012 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 124 states. [2020-07-28 15:01:53,012 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 124 states. [2020-07-28 15:01:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:53,019 INFO L93 Difference]: Finished difference Result 178 states and 225 transitions. [2020-07-28 15:01:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 225 transitions. [2020-07-28 15:01:53,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:53,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:53,020 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 178 states. [2020-07-28 15:01:53,020 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 178 states. [2020-07-28 15:01:53,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:53,027 INFO L93 Difference]: Finished difference Result 178 states and 225 transitions. [2020-07-28 15:01:53,027 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 225 transitions. [2020-07-28 15:01:53,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:53,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:53,028 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:53,028 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-28 15:01:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2020-07-28 15:01:53,032 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 22 [2020-07-28 15:01:53,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:53,033 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2020-07-28 15:01:53,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 15:01:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2020-07-28 15:01:53,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 15:01:53,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:53,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:53,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-07-28 15:01:53,245 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:53,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:53,245 INFO L82 PathProgramCache]: Analyzing trace with hash 743535808, now seen corresponding path program 1 times [2020-07-28 15:01:53,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:53,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932738296] [2020-07-28 15:01:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:53,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 15:01:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:53,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:53,354 INFO L280 TraceCheckUtils]: 0: Hoare triple {3685#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,354 INFO L280 TraceCheckUtils]: 1: Hoare triple {3685#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {3685#true} is VALID [2020-07-28 15:01:53,354 INFO L280 TraceCheckUtils]: 2: Hoare triple {3685#true} base2flt_#res := base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,355 INFO L280 TraceCheckUtils]: 3: Hoare triple {3685#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,355 INFO L280 TraceCheckUtils]: 4: Hoare triple {3685#true} assume !(0bv32 == base2flt_~m); {3685#true} is VALID [2020-07-28 15:01:53,355 INFO L280 TraceCheckUtils]: 5: Hoare triple {3685#true} assume !~bvult32(base2flt_~m, 16777216bv32); {3685#true} is VALID [2020-07-28 15:01:53,356 INFO L280 TraceCheckUtils]: 6: Hoare triple {3685#true} assume !false; {3685#true} is VALID [2020-07-28 15:01:53,356 INFO L280 TraceCheckUtils]: 7: Hoare triple {3685#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {3685#true} is VALID [2020-07-28 15:01:53,356 INFO L280 TraceCheckUtils]: 8: Hoare triple {3685#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {3685#true} is VALID [2020-07-28 15:01:53,356 INFO L280 TraceCheckUtils]: 9: Hoare triple {3685#true} base2flt_#res := base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,357 INFO L280 TraceCheckUtils]: 10: Hoare triple {3685#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,358 INFO L280 TraceCheckUtils]: 11: Hoare triple {3685#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {3723#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:53,358 INFO L280 TraceCheckUtils]: 12: Hoare triple {3723#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {3727#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:53,359 INFO L280 TraceCheckUtils]: 13: Hoare triple {3727#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,359 INFO L280 TraceCheckUtils]: 14: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume !~bvult32(addflt_~a, addflt_~b); {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,360 INFO L280 TraceCheckUtils]: 15: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,360 INFO L280 TraceCheckUtils]: 16: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} addflt_#res := addflt_~__retres10~0; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,361 INFO L280 TraceCheckUtils]: 17: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {3744#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:53,362 INFO L280 TraceCheckUtils]: 18: Hoare triple {3744#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {3748#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:53,362 INFO L280 TraceCheckUtils]: 19: Hoare triple {3748#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {3686#false} is VALID [2020-07-28 15:01:53,362 INFO L280 TraceCheckUtils]: 20: Hoare triple {3686#false} assume 0bv32 == __VERIFIER_assert_~cond; {3686#false} is VALID [2020-07-28 15:01:53,362 INFO L280 TraceCheckUtils]: 21: Hoare triple {3686#false} assume !false; {3686#false} is VALID [2020-07-28 15:01:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:53,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:53,407 INFO L280 TraceCheckUtils]: 21: Hoare triple {3686#false} assume !false; {3686#false} is VALID [2020-07-28 15:01:53,407 INFO L280 TraceCheckUtils]: 20: Hoare triple {3686#false} assume 0bv32 == __VERIFIER_assert_~cond; {3686#false} is VALID [2020-07-28 15:01:53,408 INFO L280 TraceCheckUtils]: 19: Hoare triple {3748#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {3686#false} is VALID [2020-07-28 15:01:53,408 INFO L280 TraceCheckUtils]: 18: Hoare triple {3744#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {3748#(= (_ bv0 32) ULTIMATE.start_addflt_~b)} is VALID [2020-07-28 15:01:53,409 INFO L280 TraceCheckUtils]: 17: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {3744#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:53,409 INFO L280 TraceCheckUtils]: 16: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} addflt_#res := addflt_~__retres10~0; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,410 INFO L280 TraceCheckUtils]: 15: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,410 INFO L280 TraceCheckUtils]: 14: Hoare triple {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} assume !~bvult32(addflt_~a, addflt_~b); {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,411 INFO L280 TraceCheckUtils]: 13: Hoare triple {3727#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {3731#(= (_ bv0 32) ULTIMATE.start_main_~b~0)} is VALID [2020-07-28 15:01:53,411 INFO L280 TraceCheckUtils]: 12: Hoare triple {3723#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {3727#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 11: Hoare triple {3685#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {3723#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 10: Hoare triple {3685#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 9: Hoare triple {3685#true} base2flt_#res := base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 8: Hoare triple {3685#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {3685#true} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 7: Hoare triple {3685#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {3685#true} is VALID [2020-07-28 15:01:53,412 INFO L280 TraceCheckUtils]: 6: Hoare triple {3685#true} assume !false; {3685#true} is VALID [2020-07-28 15:01:53,413 INFO L280 TraceCheckUtils]: 5: Hoare triple {3685#true} assume !~bvult32(base2flt_~m, 16777216bv32); {3685#true} is VALID [2020-07-28 15:01:53,413 INFO L280 TraceCheckUtils]: 4: Hoare triple {3685#true} assume !(0bv32 == base2flt_~m); {3685#true} is VALID [2020-07-28 15:01:53,413 INFO L280 TraceCheckUtils]: 3: Hoare triple {3685#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,413 INFO L280 TraceCheckUtils]: 2: Hoare triple {3685#true} base2flt_#res := base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,413 INFO L280 TraceCheckUtils]: 1: Hoare triple {3685#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {3685#true} is VALID [2020-07-28 15:01:53,414 INFO L280 TraceCheckUtils]: 0: Hoare triple {3685#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {3685#true} is VALID [2020-07-28 15:01:53,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:53,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932738296] [2020-07-28 15:01:53,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:53,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2020-07-28 15:01:53,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955162248] [2020-07-28 15:01:53,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-07-28 15:01:53,416 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:53,416 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 15:01:53,439 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:53,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 15:01:53,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:53,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 15:01:53,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-28 15:01:53,441 INFO L87 Difference]: Start difference. First operand 124 states and 165 transitions. Second operand 7 states. [2020-07-28 15:01:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:54,313 INFO L93 Difference]: Finished difference Result 181 states and 229 transitions. [2020-07-28 15:01:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 15:01:54,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2020-07-28 15:01:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 15:01:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2020-07-28 15:01:54,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 15:01:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2020-07-28 15:01:54,319 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 186 transitions. [2020-07-28 15:01:54,560 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:54,564 INFO L225 Difference]: With dead ends: 181 [2020-07-28 15:01:54,564 INFO L226 Difference]: Without dead ends: 148 [2020-07-28 15:01:54,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-07-28 15:01:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-28 15:01:54,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 118. [2020-07-28 15:01:54,614 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:54,614 INFO L82 GeneralOperation]: Start isEquivalent. First operand 148 states. Second operand 118 states. [2020-07-28 15:01:54,614 INFO L74 IsIncluded]: Start isIncluded. First operand 148 states. Second operand 118 states. [2020-07-28 15:01:54,614 INFO L87 Difference]: Start difference. First operand 148 states. Second operand 118 states. [2020-07-28 15:01:54,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:54,620 INFO L93 Difference]: Finished difference Result 148 states and 187 transitions. [2020-07-28 15:01:54,620 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 187 transitions. [2020-07-28 15:01:54,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:54,620 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:54,620 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 148 states. [2020-07-28 15:01:54,621 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 148 states. [2020-07-28 15:01:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:54,625 INFO L93 Difference]: Finished difference Result 148 states and 187 transitions. [2020-07-28 15:01:54,625 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 187 transitions. [2020-07-28 15:01:54,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:54,626 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:54,626 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:54,626 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:54,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-28 15:01:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 155 transitions. [2020-07-28 15:01:54,629 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 155 transitions. Word has length 22 [2020-07-28 15:01:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:54,630 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 155 transitions. [2020-07-28 15:01:54,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 15:01:54,630 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 155 transitions. [2020-07-28 15:01:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 15:01:54,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:54,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:54,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-07-28 15:01:54,843 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:54,844 INFO L82 PathProgramCache]: Analyzing trace with hash 620652719, now seen corresponding path program 1 times [2020-07-28 15:01:54,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:54,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130303451] [2020-07-28 15:01:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:54,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 15:01:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:54,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:54,920 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 15:01:54,935 INFO L280 TraceCheckUtils]: 0: Hoare triple {4529#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {4529#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {4529#true} is VALID [2020-07-28 15:01:54,936 INFO L280 TraceCheckUtils]: 2: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,936 INFO L280 TraceCheckUtils]: 3: Hoare triple {4529#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,936 INFO L280 TraceCheckUtils]: 4: Hoare triple {4529#true} assume !(0bv32 == base2flt_~m); {4529#true} is VALID [2020-07-28 15:01:54,937 INFO L280 TraceCheckUtils]: 5: Hoare triple {4529#true} assume !~bvult32(base2flt_~m, 16777216bv32); {4529#true} is VALID [2020-07-28 15:01:54,937 INFO L280 TraceCheckUtils]: 6: Hoare triple {4529#true} assume !false; {4529#true} is VALID [2020-07-28 15:01:54,937 INFO L280 TraceCheckUtils]: 7: Hoare triple {4529#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {4529#true} is VALID [2020-07-28 15:01:54,937 INFO L280 TraceCheckUtils]: 8: Hoare triple {4529#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 9: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 10: Hoare triple {4529#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 11: Hoare triple {4529#true} assume !(0bv32 == base2flt_~m); {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 12: Hoare triple {4529#true} assume !~bvult32(base2flt_~m, 16777216bv32); {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 13: Hoare triple {4529#true} assume !false; {4529#true} is VALID [2020-07-28 15:01:54,938 INFO L280 TraceCheckUtils]: 14: Hoare triple {4529#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {4529#true} is VALID [2020-07-28 15:01:54,939 INFO L280 TraceCheckUtils]: 15: Hoare triple {4529#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {4529#true} is VALID [2020-07-28 15:01:54,939 INFO L280 TraceCheckUtils]: 16: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:54,939 INFO L280 TraceCheckUtils]: 17: Hoare triple {4529#true} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {4529#true} is VALID [2020-07-28 15:01:54,943 INFO L280 TraceCheckUtils]: 18: Hoare triple {4529#true} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {4588#(bvult ULTIMATE.start_addflt_~b ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:54,947 INFO L280 TraceCheckUtils]: 19: Hoare triple {4588#(bvult ULTIMATE.start_addflt_~b ULTIMATE.start_addflt_~a)} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {4592#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 15:01:54,947 INFO L280 TraceCheckUtils]: 20: Hoare triple {4592#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {4530#false} is VALID [2020-07-28 15:01:54,947 INFO L280 TraceCheckUtils]: 21: Hoare triple {4530#false} assume !false; {4530#false} is VALID [2020-07-28 15:01:54,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:54,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:55,018 INFO L280 TraceCheckUtils]: 21: Hoare triple {4530#false} assume !false; {4530#false} is VALID [2020-07-28 15:01:55,020 INFO L280 TraceCheckUtils]: 20: Hoare triple {4602#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {4530#false} is VALID [2020-07-28 15:01:55,021 INFO L280 TraceCheckUtils]: 19: Hoare triple {4606#(bvsge (bvadd (bvlshr ULTIMATE.start_addflt_~a (_ bv24 32)) (_ bv4294967168 32)) (bvadd (bvlshr ULTIMATE.start_addflt_~b (_ bv24 32)) (_ bv4294967168 32)))} assume !(0bv32 == addflt_~b);addflt_~ma~0 := ~bvand32(16777215bv32, addflt_~a);addflt_~ea~0 := ~bvsub32(~bvlshr32(addflt_~a, 24bv32), 128bv32);addflt_~ma~0 := ~bvor32(16777216bv32, addflt_~ma~0);addflt_~mb~0 := ~bvand32(16777215bv32, addflt_~b);addflt_~eb~0 := ~bvsub32(~bvlshr32(addflt_~b, 24bv32), 128bv32);addflt_~mb~0 := ~bvor32(16777216bv32, addflt_~mb~0);__VERIFIER_assert_#in~cond := (if ~bvsge32(addflt_~ea~0, addflt_~eb~0) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {4602#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 15:01:55,023 INFO L280 TraceCheckUtils]: 18: Hoare triple {4529#true} assume ~bvult32(addflt_~a, addflt_~b);addflt_~tmp~0 := addflt_~a;addflt_~a := addflt_~b;addflt_~b := addflt_~tmp~0; {4606#(bvsge (bvadd (bvlshr ULTIMATE.start_addflt_~a (_ bv24 32)) (_ bv4294967168 32)) (bvadd (bvlshr ULTIMATE.start_addflt_~b (_ bv24 32)) (_ bv4294967168 32)))} is VALID [2020-07-28 15:01:55,023 INFO L280 TraceCheckUtils]: 17: Hoare triple {4529#true} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {4529#true} is VALID [2020-07-28 15:01:55,023 INFO L280 TraceCheckUtils]: 16: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,023 INFO L280 TraceCheckUtils]: 15: Hoare triple {4529#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 14: Hoare triple {4529#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 13: Hoare triple {4529#true} assume !false; {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 12: Hoare triple {4529#true} assume !~bvult32(base2flt_~m, 16777216bv32); {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 11: Hoare triple {4529#true} assume !(0bv32 == base2flt_~m); {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 10: Hoare triple {4529#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,024 INFO L280 TraceCheckUtils]: 9: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,025 INFO L280 TraceCheckUtils]: 8: Hoare triple {4529#true} base2flt_~m := ~bvand32(4278190079bv32, base2flt_~m);base2flt_~res~0 := ~bvor32(base2flt_~m, ~bvshl32(~bvadd32(128bv32, base2flt_~e), 24bv32));base2flt_~__retres4~0 := base2flt_~res~0; {4529#true} is VALID [2020-07-28 15:01:55,025 INFO L280 TraceCheckUtils]: 7: Hoare triple {4529#true} assume !~bvuge32(base2flt_~m, 33554432bv32); {4529#true} is VALID [2020-07-28 15:01:55,025 INFO L280 TraceCheckUtils]: 6: Hoare triple {4529#true} assume !false; {4529#true} is VALID [2020-07-28 15:01:55,025 INFO L280 TraceCheckUtils]: 5: Hoare triple {4529#true} assume !~bvult32(base2flt_~m, 16777216bv32); {4529#true} is VALID [2020-07-28 15:01:55,025 INFO L280 TraceCheckUtils]: 4: Hoare triple {4529#true} assume !(0bv32 == base2flt_~m); {4529#true} is VALID [2020-07-28 15:01:55,026 INFO L280 TraceCheckUtils]: 3: Hoare triple {4529#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {4529#true} base2flt_#res := base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {4529#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {4529#true} is VALID [2020-07-28 15:01:55,026 INFO L280 TraceCheckUtils]: 0: Hoare triple {4529#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {4529#true} is VALID [2020-07-28 15:01:55,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:55,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130303451] [2020-07-28 15:01:55,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:55,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 15:01:55,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863936755] [2020-07-28 15:01:55,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-07-28 15:01:55,031 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:55,031 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 15:01:55,064 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:55,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 15:01:55,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 15:01:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 15:01:55,065 INFO L87 Difference]: Start difference. First operand 118 states and 155 transitions. Second operand 6 states. [2020-07-28 15:01:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:55,969 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions. [2020-07-28 15:01:55,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 15:01:55,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-07-28 15:01:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:55,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2020-07-28 15:01:55,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 188 transitions. [2020-07-28 15:01:55,974 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 188 transitions. [2020-07-28 15:01:56,268 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 188 edges. 188 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:56,273 INFO L225 Difference]: With dead ends: 182 [2020-07-28 15:01:56,273 INFO L226 Difference]: Without dead ends: 178 [2020-07-28 15:01:56,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-07-28 15:01:56,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-28 15:01:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 114. [2020-07-28 15:01:56,328 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:56,328 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states. Second operand 114 states. [2020-07-28 15:01:56,328 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 114 states. [2020-07-28 15:01:56,328 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 114 states. [2020-07-28 15:01:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:56,343 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2020-07-28 15:01:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 231 transitions. [2020-07-28 15:01:56,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:56,344 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:56,344 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 178 states. [2020-07-28 15:01:56,345 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 178 states. [2020-07-28 15:01:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:56,349 INFO L93 Difference]: Finished difference Result 178 states and 231 transitions. [2020-07-28 15:01:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 231 transitions. [2020-07-28 15:01:56,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:56,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:56,351 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:56,351 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-07-28 15:01:56,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 151 transitions. [2020-07-28 15:01:56,353 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 151 transitions. Word has length 22 [2020-07-28 15:01:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:56,354 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 151 transitions. [2020-07-28 15:01:56,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 15:01:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 151 transitions. [2020-07-28 15:01:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 15:01:56,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:56,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:56,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-07-28 15:01:56,577 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:56,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:56,577 INFO L82 PathProgramCache]: Analyzing trace with hash 131253304, now seen corresponding path program 1 times [2020-07-28 15:01:56,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:56,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125424417] [2020-07-28 15:01:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:56,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 15:01:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:56,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:56,721 INFO L280 TraceCheckUtils]: 0: Hoare triple {5431#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,721 INFO L280 TraceCheckUtils]: 1: Hoare triple {5431#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5431#true} is VALID [2020-07-28 15:01:56,721 INFO L280 TraceCheckUtils]: 2: Hoare triple {5431#true} base2flt_#res := base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,722 INFO L280 TraceCheckUtils]: 3: Hoare triple {5431#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,722 INFO L280 TraceCheckUtils]: 4: Hoare triple {5431#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5448#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:56,723 INFO L280 TraceCheckUtils]: 5: Hoare triple {5448#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {5452#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:56,724 INFO L280 TraceCheckUtils]: 6: Hoare triple {5452#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,724 INFO L280 TraceCheckUtils]: 7: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,724 INFO L280 TraceCheckUtils]: 8: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,725 INFO L280 TraceCheckUtils]: 9: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:56,725 INFO L280 TraceCheckUtils]: 10: Hoare triple {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume !~bvult32(addflt_~a, addflt_~b); {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:56,726 INFO L280 TraceCheckUtils]: 11: Hoare triple {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {5473#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,726 INFO L280 TraceCheckUtils]: 12: Hoare triple {5473#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {5477#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:56,727 INFO L280 TraceCheckUtils]: 13: Hoare triple {5477#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,727 INFO L280 TraceCheckUtils]: 14: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume !~bvult32(addflt_~a, addflt_~b); {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,728 INFO L280 TraceCheckUtils]: 15: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,728 INFO L280 TraceCheckUtils]: 16: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,728 INFO L280 TraceCheckUtils]: 17: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,730 INFO L280 TraceCheckUtils]: 18: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume !~bvult32(main_~r_add1~0, main_~r_add2~0); {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,731 INFO L280 TraceCheckUtils]: 19: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume ~bvugt32(main_~r_add1~0, main_~r_add2~0);main_~tmp~2 := 1bv32; {5432#false} is VALID [2020-07-28 15:01:56,731 INFO L280 TraceCheckUtils]: 20: Hoare triple {5432#false} main_~tmp___0~0 := main_~tmp~2; {5432#false} is VALID [2020-07-28 15:01:56,732 INFO L280 TraceCheckUtils]: 21: Hoare triple {5432#false} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {5432#false} is VALID [2020-07-28 15:01:56,732 INFO L280 TraceCheckUtils]: 22: Hoare triple {5432#false} assume 0bv32 == __VERIFIER_assert_~cond; {5432#false} is VALID [2020-07-28 15:01:56,733 INFO L280 TraceCheckUtils]: 23: Hoare triple {5432#false} assume !false; {5432#false} is VALID [2020-07-28 15:01:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:56,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:56,794 INFO L280 TraceCheckUtils]: 23: Hoare triple {5432#false} assume !false; {5432#false} is VALID [2020-07-28 15:01:56,794 INFO L280 TraceCheckUtils]: 22: Hoare triple {5432#false} assume 0bv32 == __VERIFIER_assert_~cond; {5432#false} is VALID [2020-07-28 15:01:56,794 INFO L280 TraceCheckUtils]: 21: Hoare triple {5432#false} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {5432#false} is VALID [2020-07-28 15:01:56,794 INFO L280 TraceCheckUtils]: 20: Hoare triple {5432#false} main_~tmp___0~0 := main_~tmp~2; {5432#false} is VALID [2020-07-28 15:01:56,795 INFO L280 TraceCheckUtils]: 19: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume ~bvugt32(main_~r_add1~0, main_~r_add2~0);main_~tmp~2 := 1bv32; {5432#false} is VALID [2020-07-28 15:01:56,799 INFO L280 TraceCheckUtils]: 18: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume !~bvult32(main_~r_add1~0, main_~r_add2~0); {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,803 INFO L280 TraceCheckUtils]: 17: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,804 INFO L280 TraceCheckUtils]: 16: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,805 INFO L280 TraceCheckUtils]: 15: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,805 INFO L280 TraceCheckUtils]: 14: Hoare triple {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} assume !~bvult32(addflt_~a, addflt_~b); {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,806 INFO L280 TraceCheckUtils]: 13: Hoare triple {5477#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {5481#(= ULTIMATE.start_main_~r_add1~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,807 INFO L280 TraceCheckUtils]: 12: Hoare triple {5473#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} addflt_#res := addflt_~__retres10~0; {5477#(= |ULTIMATE.start_addflt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:56,807 INFO L280 TraceCheckUtils]: 11: Hoare triple {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {5473#(= ULTIMATE.start_addflt_~__retres10~0 (_ bv0 32))} is VALID [2020-07-28 15:01:56,808 INFO L280 TraceCheckUtils]: 10: Hoare triple {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} assume !~bvult32(addflt_~a, addflt_~b); {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:56,808 INFO L280 TraceCheckUtils]: 9: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {5466#(= (_ bv0 32) ULTIMATE.start_addflt_~a)} is VALID [2020-07-28 15:01:56,809 INFO L280 TraceCheckUtils]: 8: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} base2flt_#res := base2flt_~__retres4~0; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,810 INFO L280 TraceCheckUtils]: 7: Hoare triple {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,810 INFO L280 TraceCheckUtils]: 6: Hoare triple {5452#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5456#(= (_ bv0 32) ULTIMATE.start_main_~a~0)} is VALID [2020-07-28 15:01:56,811 INFO L280 TraceCheckUtils]: 5: Hoare triple {5448#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} base2flt_#res := base2flt_~__retres4~0; {5452#(= |ULTIMATE.start_base2flt_#res| (_ bv0 32))} is VALID [2020-07-28 15:01:56,812 INFO L280 TraceCheckUtils]: 4: Hoare triple {5431#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5448#(= (_ bv0 32) ULTIMATE.start_base2flt_~__retres4~0)} is VALID [2020-07-28 15:01:56,812 INFO L280 TraceCheckUtils]: 3: Hoare triple {5431#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,812 INFO L280 TraceCheckUtils]: 2: Hoare triple {5431#true} base2flt_#res := base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,812 INFO L280 TraceCheckUtils]: 1: Hoare triple {5431#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {5431#true} is VALID [2020-07-28 15:01:56,812 INFO L280 TraceCheckUtils]: 0: Hoare triple {5431#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {5431#true} is VALID [2020-07-28 15:01:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:56,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125424417] [2020-07-28 15:01:56,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:56,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2020-07-28 15:01:56,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284542441] [2020-07-28 15:01:56,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-28 15:01:56,815 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:56,815 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 15:01:56,839 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:56,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 15:01:56,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:56,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 15:01:56,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-07-28 15:01:56,840 INFO L87 Difference]: Start difference. First operand 114 states and 151 transitions. Second operand 9 states. [2020-07-28 15:01:58,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:58,078 INFO L93 Difference]: Finished difference Result 164 states and 203 transitions. [2020-07-28 15:01:58,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-28 15:01:58,078 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-28 15:01:58,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 15:01:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 199 transitions. [2020-07-28 15:01:58,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 15:01:58,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 199 transitions. [2020-07-28 15:01:58,082 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 199 transitions. [2020-07-28 15:01:58,332 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 199 edges. 199 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:58,336 INFO L225 Difference]: With dead ends: 164 [2020-07-28 15:01:58,336 INFO L226 Difference]: Without dead ends: 159 [2020-07-28 15:01:58,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-07-28 15:01:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-28 15:01:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 127. [2020-07-28 15:01:58,426 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:58,426 INFO L82 GeneralOperation]: Start isEquivalent. First operand 159 states. Second operand 127 states. [2020-07-28 15:01:58,426 INFO L74 IsIncluded]: Start isIncluded. First operand 159 states. Second operand 127 states. [2020-07-28 15:01:58,426 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 127 states. [2020-07-28 15:01:58,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:58,430 INFO L93 Difference]: Finished difference Result 159 states and 197 transitions. [2020-07-28 15:01:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2020-07-28 15:01:58,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:58,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:58,431 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 159 states. [2020-07-28 15:01:58,431 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 159 states. [2020-07-28 15:01:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:58,434 INFO L93 Difference]: Finished difference Result 159 states and 197 transitions. [2020-07-28 15:01:58,435 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2020-07-28 15:01:58,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:58,435 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:58,435 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:58,435 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:58,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-28 15:01:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 165 transitions. [2020-07-28 15:01:58,438 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 165 transitions. Word has length 24 [2020-07-28 15:01:58,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:58,438 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 165 transitions. [2020-07-28 15:01:58,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 15:01:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 165 transitions. [2020-07-28 15:01:58,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 15:01:58,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:58,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:58,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-07-28 15:01:58,651 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:58,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:58,652 INFO L82 PathProgramCache]: Analyzing trace with hash 133100346, now seen corresponding path program 1 times [2020-07-28 15:01:58,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:58,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178175949] [2020-07-28 15:01:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:58,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-28 15:01:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 15:01:58,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 15:01:58,732 INFO L280 TraceCheckUtils]: 0: Hoare triple {6318#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 1: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 2: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 3: Hoare triple {6318#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 4: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 5: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,733 INFO L280 TraceCheckUtils]: 6: Hoare triple {6318#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 7: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 8: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 9: Hoare triple {6318#true} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 10: Hoare triple {6318#true} assume !~bvult32(addflt_~a, addflt_~b); {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 11: Hoare triple {6318#true} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {6318#true} is VALID [2020-07-28 15:01:58,734 INFO L280 TraceCheckUtils]: 12: Hoare triple {6318#true} addflt_#res := addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 13: Hoare triple {6318#true} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 14: Hoare triple {6318#true} assume !~bvult32(addflt_~a, addflt_~b); {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 15: Hoare triple {6318#true} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 16: Hoare triple {6318#true} addflt_#res := addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 17: Hoare triple {6318#true} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {6318#true} is VALID [2020-07-28 15:01:58,735 INFO L280 TraceCheckUtils]: 18: Hoare triple {6318#true} assume !~bvult32(main_~r_add1~0, main_~r_add2~0); {6318#true} is VALID [2020-07-28 15:01:58,736 INFO L280 TraceCheckUtils]: 19: Hoare triple {6318#true} assume !~bvugt32(main_~r_add1~0, main_~r_add2~0);main_~tmp~2 := 0bv32; {6380#(= ULTIMATE.start_main_~tmp~2 (_ bv0 32))} is VALID [2020-07-28 15:01:58,736 INFO L280 TraceCheckUtils]: 20: Hoare triple {6380#(= ULTIMATE.start_main_~tmp~2 (_ bv0 32))} main_~tmp___0~0 := main_~tmp~2; {6384#(= (_ bv0 32) ULTIMATE.start_main_~tmp___0~0)} is VALID [2020-07-28 15:01:58,737 INFO L280 TraceCheckUtils]: 21: Hoare triple {6384#(= (_ bv0 32) ULTIMATE.start_main_~tmp___0~0)} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {6388#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 15:01:58,737 INFO L280 TraceCheckUtils]: 22: Hoare triple {6388#(= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == __VERIFIER_assert_~cond; {6319#false} is VALID [2020-07-28 15:01:58,737 INFO L280 TraceCheckUtils]: 23: Hoare triple {6319#false} assume !false; {6319#false} is VALID [2020-07-28 15:01:58,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:58,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 15:01:58,777 INFO L280 TraceCheckUtils]: 23: Hoare triple {6319#false} assume !false; {6319#false} is VALID [2020-07-28 15:01:58,778 INFO L280 TraceCheckUtils]: 22: Hoare triple {6398#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {6319#false} is VALID [2020-07-28 15:01:58,778 INFO L280 TraceCheckUtils]: 21: Hoare triple {6384#(= (_ bv0 32) ULTIMATE.start_main_~tmp___0~0)} __VERIFIER_assert_#in~cond := (if 0bv32 == main_~tmp___0~0 then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {6398#(not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 15:01:58,779 INFO L280 TraceCheckUtils]: 20: Hoare triple {6380#(= ULTIMATE.start_main_~tmp~2 (_ bv0 32))} main_~tmp___0~0 := main_~tmp~2; {6384#(= (_ bv0 32) ULTIMATE.start_main_~tmp___0~0)} is VALID [2020-07-28 15:01:58,781 INFO L280 TraceCheckUtils]: 19: Hoare triple {6318#true} assume !~bvugt32(main_~r_add1~0, main_~r_add2~0);main_~tmp~2 := 0bv32; {6380#(= ULTIMATE.start_main_~tmp~2 (_ bv0 32))} is VALID [2020-07-28 15:01:58,781 INFO L280 TraceCheckUtils]: 18: Hoare triple {6318#true} assume !~bvult32(main_~r_add1~0, main_~r_add2~0); {6318#true} is VALID [2020-07-28 15:01:58,781 INFO L280 TraceCheckUtils]: 17: Hoare triple {6318#true} main_#t~ret8 := addflt_#res;main_~r_add2~0 := main_#t~ret8;havoc main_#t~ret8; {6318#true} is VALID [2020-07-28 15:01:58,781 INFO L280 TraceCheckUtils]: 16: Hoare triple {6318#true} addflt_#res := addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,782 INFO L280 TraceCheckUtils]: 15: Hoare triple {6318#true} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {6318#true} is VALID [2020-07-28 15:01:58,782 INFO L280 TraceCheckUtils]: 14: Hoare triple {6318#true} assume !~bvult32(addflt_~a, addflt_~b); {6318#true} is VALID [2020-07-28 15:01:58,782 INFO L280 TraceCheckUtils]: 13: Hoare triple {6318#true} main_#t~ret7 := addflt_#res;main_~r_add1~0 := main_#t~ret7;havoc main_#t~ret7;addflt_#in~a, addflt_#in~b := main_~b~0, main_~a~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,782 INFO L280 TraceCheckUtils]: 12: Hoare triple {6318#true} addflt_#res := addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,782 INFO L280 TraceCheckUtils]: 11: Hoare triple {6318#true} assume 0bv32 == addflt_~b;addflt_~__retres10~0 := addflt_~a; {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 10: Hoare triple {6318#true} assume !~bvult32(addflt_~a, addflt_~b); {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 9: Hoare triple {6318#true} main_#t~ret6 := base2flt_#res;main_~b~0 := main_#t~ret6;havoc main_#t~ret6;addflt_#in~a, addflt_#in~b := main_~a~0, main_~b~0;havoc addflt_#res;havoc addflt_~a, addflt_~b, addflt_~res~1, addflt_~ma~0, addflt_~mb~0, addflt_~delta~0, addflt_~ea~0, addflt_~eb~0, addflt_~tmp~0, addflt_~__retres10~0;addflt_~a := addflt_#in~a;addflt_~b := addflt_#in~b;havoc addflt_~res~1;havoc addflt_~ma~0;havoc addflt_~mb~0;havoc addflt_~delta~0;havoc addflt_~ea~0;havoc addflt_~eb~0;havoc addflt_~tmp~0;havoc addflt_~__retres10~0; {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 8: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 7: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 6: Hoare triple {6318#true} main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;base2flt_#in~m, base2flt_#in~e := main_~mb~2, ~sign_extendFrom8To32(main_~eb~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,783 INFO L280 TraceCheckUtils]: 5: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,784 INFO L280 TraceCheckUtils]: 4: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,784 INFO L280 TraceCheckUtils]: 3: Hoare triple {6318#true} main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;base2flt_#in~m, base2flt_#in~e := main_~ma~2, ~sign_extendFrom8To32(main_~ea~2);havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,784 INFO L280 TraceCheckUtils]: 2: Hoare triple {6318#true} base2flt_#res := base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,784 INFO L280 TraceCheckUtils]: 1: Hoare triple {6318#true} assume 0bv32 == base2flt_~m;base2flt_~__retres4~0 := 0bv32; {6318#true} is VALID [2020-07-28 15:01:58,784 INFO L280 TraceCheckUtils]: 0: Hoare triple {6318#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0bv32, 0bv32;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; {6318#true} is VALID [2020-07-28 15:01:58,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 15:01:58,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178175949] [2020-07-28 15:01:58,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 15:01:58,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2020-07-28 15:01:58,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934663852] [2020-07-28 15:01:58,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 15:01:58,786 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 15:01:58,786 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 15:01:58,811 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:58,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 15:01:58,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 15:01:58,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 15:01:58,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-28 15:01:58,812 INFO L87 Difference]: Start difference. First operand 127 states and 165 transitions. Second operand 6 states. [2020-07-28 15:01:59,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:59,439 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2020-07-28 15:01:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 15:01:59,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 15:01:59,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 15:01:59,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-28 15:01:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 15:01:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-28 15:01:59,442 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 126 transitions. [2020-07-28 15:01:59,581 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 15:01:59,584 INFO L225 Difference]: With dead ends: 144 [2020-07-28 15:01:59,584 INFO L226 Difference]: Without dead ends: 125 [2020-07-28 15:01:59,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-28 15:01:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-07-28 15:01:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-07-28 15:01:59,652 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 15:01:59,652 INFO L82 GeneralOperation]: Start isEquivalent. First operand 125 states. Second operand 115 states. [2020-07-28 15:01:59,653 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 115 states. [2020-07-28 15:01:59,653 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 115 states. [2020-07-28 15:01:59,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:59,657 INFO L93 Difference]: Finished difference Result 125 states and 162 transitions. [2020-07-28 15:01:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-28 15:01:59,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:59,657 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:59,658 INFO L74 IsIncluded]: Start isIncluded. First operand 115 states. Second operand 125 states. [2020-07-28 15:01:59,658 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 125 states. [2020-07-28 15:01:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 15:01:59,661 INFO L93 Difference]: Finished difference Result 125 states and 162 transitions. [2020-07-28 15:01:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-28 15:01:59,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 15:01:59,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 15:01:59,662 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 15:01:59,662 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 15:01:59,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-28 15:01:59,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 149 transitions. [2020-07-28 15:01:59,665 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 149 transitions. Word has length 24 [2020-07-28 15:01:59,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 15:01:59,665 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 149 transitions. [2020-07-28 15:01:59,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 15:01:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 149 transitions. [2020-07-28 15:01:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 15:01:59,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 15:01:59,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 15:01:59,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-07-28 15:01:59,879 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 15:01:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 15:01:59,880 INFO L82 PathProgramCache]: Analyzing trace with hash -553029582, now seen corresponding path program 1 times [2020-07-28 15:01:59,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 15:01:59,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955355767] [2020-07-28 15:01:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-07-28 15:01:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 15:01:59,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 15:01:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 15:01:59,934 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 15:01:59,966 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 15:01:59,966 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 15:02:00,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-07-28 15:02:00,201 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 15:02:00,202 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-28 15:02:00,202 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-28 15:02:00,202 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 15:02:00,202 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 15:02:00,202 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 15:02:00,203 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 15:02:00,203 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-28 15:02:00,203 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-28 15:02:00,203 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-28 15:02:00,203 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 15:02:00,204 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L69-1 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2020-07-28 15:02:00,205 WARN L170 areAnnotationChecker]: L25-1 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L70-1 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 15:02:00,206 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L47-5 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L47-5 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L47-5 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 15:02:00,207 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L63-1 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 15:02:00,208 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L25-2 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-28 15:02:00,209 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L70-2 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L37-5 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L37-5 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L37-5 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L47-8 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L47-8 has no Hoare annotation [2020-07-28 15:02:00,210 WARN L170 areAnnotationChecker]: L47-8 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L84 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L63-2 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-28 15:02:00,211 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L37-4 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L37-4 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-28 15:02:00,212 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L134 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L135 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:00,213 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L6-3 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L6-3 has no Hoare annotation [2020-07-28 15:02:00,214 WARN L170 areAnnotationChecker]: L84-5 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L84-5 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L7-1 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L6-5 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L134-1 has no Hoare annotation [2020-07-28 15:02:00,215 WARN L170 areAnnotationChecker]: L6-9 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L6-9 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L109 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L109 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L135-1 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 15:02:00,216 WARN L170 areAnnotationChecker]: L7-3 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L6-11 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L116 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L237 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L6-12 has no Hoare annotation [2020-07-28 15:02:00,217 WARN L170 areAnnotationChecker]: L6-12 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L117 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L116-2 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L237-2 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L240 has no Hoare annotation [2020-07-28 15:02:00,218 WARN L170 areAnnotationChecker]: L240 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L7-4 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L7-4 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L6-14 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L6-6 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L6-6 has no Hoare annotation [2020-07-28 15:02:00,219 WARN L170 areAnnotationChecker]: L6-18 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L6-18 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L240-2 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L109-1 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L109-1 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-28 15:02:00,220 WARN L170 areAnnotationChecker]: L6-8 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L7-6 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L6-20 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L116-3 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L116-3 has no Hoare annotation [2020-07-28 15:02:00,221 WARN L170 areAnnotationChecker]: L251 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L117-1 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L117-1 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L116-5 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L6-15 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L6-15 has no Hoare annotation [2020-07-28 15:02:00,222 WARN L170 areAnnotationChecker]: L7-5 has no Hoare annotation [2020-07-28 15:02:00,223 WARN L170 areAnnotationChecker]: L7-5 has no Hoare annotation [2020-07-28 15:02:00,223 WARN L170 areAnnotationChecker]: L6-17 has no Hoare annotation [2020-07-28 15:02:00,223 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 15:02:00,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 03:02:00 BoogieIcfgContainer [2020-07-28 15:02:00,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 15:02:00,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 15:02:00,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 15:02:00,226 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 15:02:00,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 03:01:44" (3/4) ... [2020-07-28 15:02:00,229 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 15:02:00,305 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 15:02:00,305 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 15:02:00,308 INFO L168 Benchmark]: Toolchain (without parser) took 16793.89 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 343.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 182.3 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:00,309 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:00,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:00,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:00,310 INFO L168 Benchmark]: Boogie Preprocessor took 56.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:00,311 INFO L168 Benchmark]: RCFGBuilder took 727.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:00,311 INFO L168 Benchmark]: TraceAbstraction took 15440.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.5 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. [2020-07-28 15:02:00,312 INFO L168 Benchmark]: Witness Printer took 80.17 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 15:02:00,314 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 727.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.2 MB). Peak memory consumption was 52.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15440.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.5 MB). Peak memory consumption was 161.3 MB. Max. memory is 11.5 GB. * Witness Printer took 80.17 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L231] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L232] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L233] b = base2flt(mb, eb) [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] eb = (int )(b >> 24U) - 128 [L103] mb = mb | (1U << 24U) [L6] COND FALSE !(!(cond)) [L105] delta = ea - eb [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 852 SDtfs, 1257 SDslu, 3823 SDs, 0 SdLazy, 664 SolverSat, 120 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 275 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 401 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 11560 SizeOfPredicates, 49 NumberOfNonLiveVariables, 439 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...