./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/floats-cbmc-regression/float22.i -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 08947af3b6f9b8a272faa540a059213a9b1de888 ................................................................................................................................................................................................................................................................................................................................... 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 -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/floats-cbmc-regression/float22.i -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 08947af3b6f9b8a272faa540a059213a9b1de888 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:08:55,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:08:55,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:08:55,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:08:55,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:08:55,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:08:55,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:08:55,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:08:55,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:08:55,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:08:55,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:08:55,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:08:55,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:08:55,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:08:55,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:08:55,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:08:55,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:08:55,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:08:55,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:08:55,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:08:55,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:08:55,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:08:55,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:08:55,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:08:55,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:08:55,271 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:08:55,271 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:08:55,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:08:55,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:08:55,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:08:55,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:08:55,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:08:55,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:08:55,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:08:55,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:08:55,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:08:55,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:08:55,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:08:55,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:08:55,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:08:55,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:08:55,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:08:55,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:08:55,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:08:55,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:08:55,330 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:08:55,331 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:08:55,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:08:55,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:08:55,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:08:55,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:08:55,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:08:55,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:08:55,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:08:55,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:08:55,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:08:55,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:08:55,337 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:08:55,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:08:55,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:08:55,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:08:55,338 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:08:55,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:08:55,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:08:55,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:08:55,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:08:55,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:08:55,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:08:55,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:08:55,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:08:55,342 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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-11-19 21:08:55,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:08:55,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:08:55,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:08:55,729 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:08:55,729 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:08:55,732 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 21:08:55,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acdc62ec/51b2612c7e3044f687c57f51fa950f0e/FLAG8a33d2409 [2019-11-19 21:08:56,284 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:08:56,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 21:08:56,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acdc62ec/51b2612c7e3044f687c57f51fa950f0e/FLAG8a33d2409 [2019-11-19 21:08:56,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2acdc62ec/51b2612c7e3044f687c57f51fa950f0e [2019-11-19 21:08:56,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:08:56,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:08:56,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:08:56,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:08:56,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:08:56,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:08:56" (1/1) ... [2019-11-19 21:08:56,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3688cb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:56, skipping insertion in model container [2019-11-19 21:08:56,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:08:56" (1/1) ... [2019-11-19 21:08:56,687 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:08:56,712 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:08:56,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:08:56,934 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:08:57,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:08:57,096 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:08:57,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57 WrapperNode [2019-11-19 21:08:57,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:08:57,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:08:57,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:08:57,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:08:57,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:08:57,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:08:57,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:08:57,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:08:57,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (1/1) ... [2019-11-19 21:08:57,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:08:57,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:08:57,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:08:57,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:08:57,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (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 [2019-11-19 21:08:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:08:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 21:08:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 21:08:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 21:08:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:08:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:08:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 21:08:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:08:57,880 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:08:57,880 INFO L285 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-19 21:08:57,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:08:57 BoogieIcfgContainer [2019-11-19 21:08:57,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:08:57,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:08:57,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:08:57,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:08:57,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:08:56" (1/3) ... [2019-11-19 21:08:57,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783a95a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:08:57, skipping insertion in model container [2019-11-19 21:08:57,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:57" (2/3) ... [2019-11-19 21:08:57,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783a95a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:08:57, skipping insertion in model container [2019-11-19 21:08:57,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:08:57" (3/3) ... [2019-11-19 21:08:57,891 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-19 21:08:57,901 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:08:57,912 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 21:08:57,924 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 21:08:57,949 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:08:57,949 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:08:57,949 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:08:57,949 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:08:57,951 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:08:57,951 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:08:57,951 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:08:57,951 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:08:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-19 21:08:57,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 21:08:57,971 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:08:57,972 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 21:08:57,973 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:08:57,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:08:57,980 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-19 21:08:57,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:08:57,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541316603] [2019-11-19 21:08:57,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:08:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:08:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:08:58,251 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:08:58,252 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:08:58,265 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,266 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,267 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,267 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,268 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,269 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,270 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,270 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,271 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,271 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,271 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,272 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,272 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,272 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,272 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 21:08:58,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 21:08:58,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 21:08:58,280 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 21:08:58,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 21:08:58,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 21:08:58,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 21:08:58,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 21:08:58,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 21:08:58,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 21:08:58,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 21:08:58,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 21:08:58,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 21:08:58,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:08:58 BoogieIcfgContainer [2019-11-19 21:08:58,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:08:58,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:08:58,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:08:58,292 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:08:58,293 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:08:57" (3/4) ... [2019-11-19 21:08:58,296 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:08:58,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:08:58,299 INFO L168 Benchmark]: Toolchain (without parser) took 1630.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 959.0 MB in the beginning and 1.0 GB in the end (delta: -87.2 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:08:58,300 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:08:58,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:08:58,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.95 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. [2019-11-19 21:08:58,302 INFO L168 Benchmark]: Boogie Preprocessor took 53.76 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. [2019-11-19 21:08:58,303 INFO L168 Benchmark]: RCFGBuilder took 654.45 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:08:58,304 INFO L168 Benchmark]: TraceAbstraction took 408.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-19 21:08:58,304 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:08:58,308 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.95 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 53.76 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. * RCFGBuilder took 654.45 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: 40.5 MB). Peak memory consumption was 40.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 408.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L128] ieee754_float f1, f2; [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L130] f1 = returnsStructure(0) [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 21:09:00,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:09:00,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:09:00,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:09:00,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:09:00,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:09:00,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:09:00,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:09:00,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:09:00,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:09:00,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:09:00,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:09:00,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:09:00,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:09:00,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:09:00,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:09:00,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:09:00,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:09:00,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:09:00,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:09:00,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:09:00,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:09:00,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:09:00,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:09:00,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:09:00,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:09:00,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:09:00,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:09:00,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:09:00,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:09:00,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:09:00,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:09:00,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:09:00,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:09:00,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:09:00,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:09:00,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:09:00,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:09:00,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:09:00,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:09:00,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:09:00,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:09:00,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:09:00,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:09:00,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:09:00,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:09:00,292 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:09:00,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:09:00,292 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:09:00,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:09:00,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:09:00,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:09:00,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:09:00,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:09:00,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:09:00,295 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:09:00,295 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:09:00,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:09:00,296 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:09:00,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:09:00,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:09:00,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:09:00,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:09:00,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:09:00,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:09:00,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:09:00,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:09:00,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:09:00,299 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:09:00,299 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:09:00,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:09:00,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:09:00,300 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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-11-19 21:09:00,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:09:00,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:09:00,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:09:00,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:09:00,628 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:09:00,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 21:09:00,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d974b3ed/9478dace46fa4931833560447c5503fe/FLAG785c635d0 [2019-11-19 21:09:01,104 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:09:01,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 21:09:01,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d974b3ed/9478dace46fa4931833560447c5503fe/FLAG785c635d0 [2019-11-19 21:09:01,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d974b3ed/9478dace46fa4931833560447c5503fe [2019-11-19 21:09:01,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:09:01,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:09:01,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:09:01,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:09:01,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:09:01,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:01,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a90fb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01, skipping insertion in model container [2019-11-19 21:09:01,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:01,519 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:09:01,546 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:09:01,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:01,808 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:09:01,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:01,986 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:09:01,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01 WrapperNode [2019-11-19 21:09:01,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:09:01,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:01,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:09:01,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:09:01,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:02,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:09:02,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:09:02,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:09:02,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (1/1) ... [2019-11-19 21:09:02,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:09:02,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:09:02,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:09:02,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:09:02,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (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 [2019-11-19 21:09:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 21:09:02,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 21:09:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 21:09:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:09:02,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:09:02,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 21:09:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 21:09:02,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 21:09:02,754 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:09:02,754 INFO L285 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-19 21:09:02,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:02 BoogieIcfgContainer [2019-11-19 21:09:02,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:09:02,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:09:02,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:09:02,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:09:02,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:09:01" (1/3) ... [2019-11-19 21:09:02,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafbbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:02, skipping insertion in model container [2019-11-19 21:09:02,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:01" (2/3) ... [2019-11-19 21:09:02,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafbbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:02, skipping insertion in model container [2019-11-19 21:09:02,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:02" (3/3) ... [2019-11-19 21:09:02,765 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-19 21:09:02,774 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:09:02,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 21:09:02,792 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 21:09:02,815 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:09:02,815 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:09:02,816 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:09:02,816 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:09:02,816 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:09:02,816 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:09:02,816 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:09:02,816 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:09:02,830 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-19 21:09:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 21:09:02,835 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:02,836 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 21:09:02,837 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:02,843 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-19 21:09:02,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:09:02,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842642614] [2019-11-19 21:09:02,853 INFO L94 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 [2019-11-19 21:09:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:09:03,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-19 21:09:03,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:09:03,219 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2019-11-19 21:09:03,220 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-19 21:09:03,221 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-11-19 21:09:03,226 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:03,394 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-19 21:09:03,395 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-19 21:09:03,417 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-19 21:09:03,418 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:03,450 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:03,452 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:03,453 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-19 21:09:03,611 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:03,611 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-11-19 21:09:03,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:03,854 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-19 21:09:03,855 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:04,123 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-19 21:09:04,124 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-19 21:09:04,125 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-11-19 21:09:04,127 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:04,427 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-11-19 21:09:04,428 INFO L567 ElimStorePlain]: treesize reduction 44, result has 75.0 percent of original size [2019-11-19 21:09:04,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:04,439 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:04,440 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:164, output treesize:119 [2019-11-19 21:09:04,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:04,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:04,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:04,638 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:04,639 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 93 [2019-11-19 21:09:04,642 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:04,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:04,657 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 52 [2019-11-19 21:09:04,659 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:04,713 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-19 21:09:04,715 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:09:04,715 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:264, output treesize:25 [2019-11-19 21:09:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:04,740 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:09:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:09,978 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842642614] [2019-11-19 21:09:09,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:09:09,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 21:09:09,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527470414] [2019-11-19 21:09:09,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 21:09:09,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:09:09,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 21:09:09,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=38, Unknown=2, NotChecked=0, Total=56 [2019-11-19 21:09:10,001 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 8 states. [2019-11-19 21:09:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:09:10,839 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2019-11-19 21:09:10,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 21:09:10,842 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-11-19 21:09:10,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:09:10,853 INFO L225 Difference]: With dead ends: 57 [2019-11-19 21:09:10,853 INFO L226 Difference]: Without dead ends: 25 [2019-11-19 21:09:10,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=22, Invalid=48, Unknown=2, NotChecked=0, Total=72 [2019-11-19 21:09:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-19 21:09:10,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-19 21:09:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-19 21:09:10,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-11-19 21:09:10,899 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2019-11-19 21:09:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:09:10,900 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-11-19 21:09:10,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 21:09:10,901 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-11-19 21:09:10,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 21:09:10,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:10,902 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:09:11,106 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 21:09:11,107 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:11,109 INFO L82 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2019-11-19 21:09:11,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:09:11,110 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705009863] [2019-11-19 21:09:11,111 INFO L94 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 [2019-11-19 21:09:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:09:11,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-19 21:09:11,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:09:11,366 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2019-11-19 21:09:11,369 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:11,372 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:11,373 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:09:11,379 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:11,379 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:09:11,379 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:6 [2019-11-19 21:09:11,515 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-19 21:09:11,516 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-11-19 21:09:11,518 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:11,656 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-19 21:09:11,657 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-19 21:09:11,686 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-19 21:09:11,686 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:11,715 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:11,716 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:11,716 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-19 21:09:11,893 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:11,894 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-11-19 21:09:11,895 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:12,095 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-19 21:09:12,096 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:12,377 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-19 21:09:12,378 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-19 21:09:12,379 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-11-19 21:09:12,381 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:12,721 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-19 21:09:12,721 INFO L567 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-11-19 21:09:12,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:12,726 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:12,727 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-11-19 21:09:12,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:12,792 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:12,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:12,857 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 54 [2019-11-19 21:09:12,859 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:12,867 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:12,903 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:12,904 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 123 treesize of output 95 [2019-11-19 21:09:12,906 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:12,968 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-19 21:09:12,969 INFO L496 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:09:12,970 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:260, output treesize:25 [2019-11-19 21:09:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:12,997 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:09:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:15,066 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705009863] [2019-11-19 21:09:15,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:09:15,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-11-19 21:09:15,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722719633] [2019-11-19 21:09:15,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 21:09:15,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:09:15,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 21:09:15,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-19 21:09:15,072 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2019-11-19 21:09:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:09:16,203 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-11-19 21:09:16,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 21:09:16,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-19 21:09:16,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:09:16,206 INFO L225 Difference]: With dead ends: 25 [2019-11-19 21:09:16,207 INFO L226 Difference]: Without dead ends: 23 [2019-11-19 21:09:16,208 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-11-19 21:09:16,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-19 21:09:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-19 21:09:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 21:09:16,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-19 21:09:16,214 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-19 21:09:16,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:09:16,215 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-19 21:09:16,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 21:09:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-19 21:09:16,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 21:09:16,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:16,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:09:16,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 21:09:16,431 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:16,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2019-11-19 21:09:16,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:09:16,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093075996] [2019-11-19 21:09:16,434 INFO L94 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 [2019-11-19 21:09:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:09:16,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 37 conjunts are in the unsatisfiable core [2019-11-19 21:09:16,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:09:16,869 INFO L343 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2019-11-19 21:09:16,870 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 55 [2019-11-19 21:09:16,871 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:16,938 INFO L567 ElimStorePlain]: treesize reduction 36, result has 37.9 percent of original size [2019-11-19 21:09:16,939 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:16,939 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-19 21:09:17,150 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2019-11-19 21:09:17,151 INFO L343 Elim1Store]: treesize reduction 24, result has 77.4 percent of original size [2019-11-19 21:09:17,151 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 31 treesize of output 103 [2019-11-19 21:09:17,154 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:17,303 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2019-11-19 21:09:17,304 INFO L567 ElimStorePlain]: treesize reduction 50, result has 56.5 percent of original size [2019-11-19 21:09:17,328 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-19 21:09:17,329 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:17,361 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:17,363 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:17,363 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:69 [2019-11-19 21:09:17,434 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,436 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,437 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,446 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 71 [2019-11-19 21:09:17,447 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:17,506 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:17,508 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:17,508 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:112, output treesize:100 [2019-11-19 21:09:17,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,677 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:17,834 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-11-19 21:09:17,836 INFO L343 Elim1Store]: treesize reduction 8, result has 91.1 percent of original size [2019-11-19 21:09:17,836 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 31 treesize of output 103 [2019-11-19 21:09:17,838 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:18,223 WARN L191 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-11-19 21:09:18,224 INFO L567 ElimStorePlain]: treesize reduction 50, result has 73.3 percent of original size [2019-11-19 21:09:18,237 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,245 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,247 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,337 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:18,338 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 90 treesize of output 141 [2019-11-19 21:09:18,340 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:18,528 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-11-19 21:09:18,529 INFO L567 ElimStorePlain]: treesize reduction 60, result has 68.4 percent of original size [2019-11-19 21:09:18,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:18,531 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:18,531 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:147, output treesize:130 [2019-11-19 21:09:18,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:18,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:18,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,669 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,706 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,710 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,773 INFO L237 Elim1Store]: Index analysis took 127 ms [2019-11-19 21:09:18,818 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:18,819 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 195 treesize of output 233 [2019-11-19 21:09:18,821 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:18,872 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,875 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 21:09:18,905 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:18,906 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 169 treesize of output 193 [2019-11-19 21:09:18,908 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:19,584 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-11-19 21:09:19,585 INFO L567 ElimStorePlain]: treesize reduction 183, result has 46.2 percent of original size [2019-11-19 21:09:19,758 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-19 21:09:19,759 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:19,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 118 treesize of output 177 [2019-11-19 21:09:19,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:19,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:19,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:19,763 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:19,770 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:19,966 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-11-19 21:09:19,967 INFO L567 ElimStorePlain]: treesize reduction 76, result has 62.2 percent of original size [2019-11-19 21:09:19,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:19,970 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 21:09:19,971 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:365, output treesize:130 [2019-11-19 21:09:19,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,163 INFO L237 Elim1Store]: Index analysis took 105 ms [2019-11-19 21:09:20,228 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:20,229 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 146 treesize of output 130 [2019-11-19 21:09:20,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,230 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:20,262 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 21:09:20,263 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 81 [2019-11-19 21:09:20,264 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,269 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 21:09:20,270 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 21:09:20,374 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 28 [2019-11-19 21:09:20,375 INFO L567 ElimStorePlain]: treesize reduction 230, result has 13.9 percent of original size [2019-11-19 21:09:20,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 21:09:20,375 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:262, output treesize:25 [2019-11-19 21:09:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:20,411 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:09:24,984 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 52 [2019-11-19 21:09:30,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 21:09:30,235 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.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:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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:316) 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) [2019-11-19 21:09:30,244 INFO L168 Benchmark]: Toolchain (without parser) took 28741.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.3 MB). Free memory was 961.7 MB in the beginning and 866.8 MB in the end (delta: 94.9 MB). Peak memory consumption was 307.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:30,245 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:09:30,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:30,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.79 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. [2019-11-19 21:09:30,247 INFO L168 Benchmark]: Boogie Preprocessor took 66.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:30,247 INFO L168 Benchmark]: RCFGBuilder took 641.28 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: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:30,248 INFO L168 Benchmark]: TraceAbstraction took 27485.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 866.8 MB in the end (delta: 223.6 MB). Peak memory consumption was 293.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:30,260 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 484.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.79 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 66.87 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 641.28 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: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27485.22 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.3 MB). Free memory was 1.1 GB in the beginning and 866.8 MB in the end (delta: 223.6 MB). Peak memory consumption was 293.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...