./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 f6fb2bb1 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-f6fb2bb [2019-11-19 18:43:51,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:43:51,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:43:51,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:43:51,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:43:51,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:43:51,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:43:51,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:43:51,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:43:51,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:43:51,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:43:51,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:43:51,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:43:51,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:43:51,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:43:51,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:43:51,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:43:51,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:43:51,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:43:51,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:43:51,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:43:51,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:43:51,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:43:51,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:43:51,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:43:51,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:43:51,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:43:51,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:43:51,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:43:51,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:43:51,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:43:51,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:43:51,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:43:51,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:43:51,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:43:51,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:43:51,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:43:51,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:43:51,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:43:51,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:43:51,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:43:51,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 18:43:51,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:43:51,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:43:51,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:43:51,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:43:51,505 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:43:51,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:43:51,506 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:43:51,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 18:43:51,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:43:51,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:43:51,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:43:51,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:43:51,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:43:51,509 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:43:51,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:43:51,509 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:43:51,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:43:51,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:43:51,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:43:51,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:43:51,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:43:51,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:43:51,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:43:51,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:43:51,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:43:51,513 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 18:43:51,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 18:43:51,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:43:51,514 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 18:43:51,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:43:51,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:43:51,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:43:51,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:43:51,918 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:43:51,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 18:43:51,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12084ba11/8f2af7788492402fa8a4703d4aee1604/FLAGc471e1a29 [2019-11-19 18:43:52,485 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:43:52,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 18:43:52,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12084ba11/8f2af7788492402fa8a4703d4aee1604/FLAGc471e1a29 [2019-11-19 18:43:52,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12084ba11/8f2af7788492402fa8a4703d4aee1604 [2019-11-19 18:43:52,863 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:43:52,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:43:52,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:43:52,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:43:52,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:43:52,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:52" (1/1) ... [2019-11-19 18:43:52,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eedbd63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:52, skipping insertion in model container [2019-11-19 18:43:52,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:52" (1/1) ... [2019-11-19 18:43:52,883 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:43:52,919 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:43:53,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:43:53,180 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:43:53,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:43:53,300 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:43:53,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53 WrapperNode [2019-11-19 18:43:53,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:43:53,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:43:53,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:43:53,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:43:53,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:43:53,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:43:53,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:43:53,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:43:53,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (1/1) ... [2019-11-19 18:43:53,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:43:53,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:43:53,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:43:53,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:43:53,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (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 18:43:53,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:43:53,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 18:43:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 18:43:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 18:43:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:43:53,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:43:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 18:43:53,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 18:43:54,117 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:43:54,118 INFO L285 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-19 18:43:54,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:54 BoogieIcfgContainer [2019-11-19 18:43:54,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:43:54,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:43:54,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:43:54,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:43:54,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:43:52" (1/3) ... [2019-11-19 18:43:54,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249489a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:54, skipping insertion in model container [2019-11-19 18:43:54,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:53" (2/3) ... [2019-11-19 18:43:54,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249489a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:54, skipping insertion in model container [2019-11-19 18:43:54,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:54" (3/3) ... [2019-11-19 18:43:54,132 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-19 18:43:54,142 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:43:54,155 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 18:43:54,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 18:43:54,193 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:43:54,193 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:43:54,193 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:43:54,193 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:43:54,194 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:43:54,194 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:43:54,194 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:43:54,194 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:43:54,210 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-19 18:43:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 18:43:54,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:43:54,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 18:43:54,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:43:54,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:43:54,224 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-19 18:43:54,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 18:43:54,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947776703] [2019-11-19 18:43:54,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 18:43:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:43:54,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 18:43:54,575 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 18:43:54,576 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 18:43:54,589 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,590 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,591 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,591 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,591 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,591 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,592 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,592 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,592 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,593 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,593 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,594 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,594 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,594 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,595 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-19 18:43:54,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 18:43:54,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 18:43:54,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 18:43:54,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 18:43:54,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 18:43:54,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 18:43:54,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 18:43:54,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 18:43:54,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 18:43:54,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-19 18:43:54,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-19 18:43:54,606 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-19 18:43:54,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:43:54 BoogieIcfgContainer [2019-11-19 18:43:54,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 18:43:54,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 18:43:54,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 18:43:54,615 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 18:43:54,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:54" (3/4) ... [2019-11-19 18:43:54,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 18:43:54,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 18:43:54,624 INFO L168 Benchmark]: Toolchain (without parser) took 1757.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -101.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:43:54,624 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 18:43:54,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:43:54,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 18:43:54,627 INFO L168 Benchmark]: Boogie Preprocessor took 49.87 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 18:43:54,628 INFO L168 Benchmark]: RCFGBuilder took 709.03 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2019-11-19 18:43:54,629 INFO L168 Benchmark]: TraceAbstraction took 493.46 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:43:54,629 INFO L168 Benchmark]: Witness Printer took 5.67 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 18:43:54,634 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 435.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.87 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 709.03 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 493.46 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: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.67 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. * 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.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative * 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=1] [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=1] [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=1] [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=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.4s, 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, 0.1s 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-f6fb2bb [2019-11-19 18:43:56,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 18:43:56,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 18:43:56,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 18:43:56,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 18:43:56,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 18:43:56,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 18:43:56,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 18:43:56,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 18:43:56,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 18:43:56,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 18:43:56,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 18:43:56,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 18:43:56,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 18:43:56,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 18:43:56,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 18:43:56,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 18:43:56,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 18:43:56,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 18:43:56,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 18:43:56,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 18:43:56,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 18:43:56,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 18:43:56,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 18:43:56,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 18:43:56,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 18:43:56,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 18:43:56,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 18:43:56,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 18:43:56,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 18:43:56,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 18:43:56,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 18:43:56,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 18:43:56,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 18:43:56,749 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 18:43:56,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 18:43:56,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 18:43:56,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 18:43:56,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 18:43:56,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 18:43:56,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 18:43:56,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 18:43:56,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 18:43:56,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 18:43:56,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 18:43:56,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 18:43:56,776 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 18:43:56,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 18:43:56,777 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 18:43:56,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 18:43:56,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 18:43:56,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 18:43:56,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 18:43:56,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 18:43:56,779 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 18:43:56,780 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 18:43:56,780 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 18:43:56,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 18:43:56,780 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 18:43:56,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 18:43:56,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 18:43:56,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 18:43:56,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 18:43:56,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 18:43:56,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 18:43:56,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 18:43:56,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 18:43:56,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 18:43:56,784 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 18:43:56,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 18:43:56,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 18:43:56,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 18:43:56,785 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 18:43:57,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 18:43:57,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 18:43:57,134 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 18:43:57,136 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 18:43:57,136 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 18:43:57,137 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 18:43:57,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86e7f185/5251e598fd0742478e96a2f5bae227b9/FLAGa3661a2e0 [2019-11-19 18:43:57,638 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 18:43:57,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-19 18:43:57,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86e7f185/5251e598fd0742478e96a2f5bae227b9/FLAGa3661a2e0 [2019-11-19 18:43:58,058 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b86e7f185/5251e598fd0742478e96a2f5bae227b9 [2019-11-19 18:43:58,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 18:43:58,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 18:43:58,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 18:43:58,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 18:43:58,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 18:43:58,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd276af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58, skipping insertion in model container [2019-11-19 18:43:58,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,081 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 18:43:58,104 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 18:43:58,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:43:58,351 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 18:43:58,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 18:43:58,492 INFO L192 MainTranslator]: Completed translation [2019-11-19 18:43:58,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58 WrapperNode [2019-11-19 18:43:58,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 18:43:58,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 18:43:58,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 18:43:58,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 18:43:58,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 18:43:58,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 18:43:58,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 18:43:58,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 18:43:58,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (1/1) ... [2019-11-19 18:43:58,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 18:43:58,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 18:43:58,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 18:43:58,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 18:43:58,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (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 18:43:58,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 18:43:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-19 18:43:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 18:43:58,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 18:43:58,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 18:43:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-19 18:43:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 18:43:58,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 18:43:59,183 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 18:43:59,184 INFO L285 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-19 18:43:59,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:59 BoogieIcfgContainer [2019-11-19 18:43:59,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 18:43:59,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 18:43:59,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 18:43:59,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 18:43:59,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:43:58" (1/3) ... [2019-11-19 18:43:59,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e8c163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:59, skipping insertion in model container [2019-11-19 18:43:59,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:43:58" (2/3) ... [2019-11-19 18:43:59,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e8c163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:43:59, skipping insertion in model container [2019-11-19 18:43:59,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:43:59" (3/3) ... [2019-11-19 18:43:59,197 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-19 18:43:59,210 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 18:43:59,219 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-19 18:43:59,232 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-19 18:43:59,282 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 18:43:59,283 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 18:43:59,283 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 18:43:59,283 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 18:43:59,285 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 18:43:59,285 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 18:43:59,285 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 18:43:59,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 18:43:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-19 18:43:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-19 18:43:59,330 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:43:59,331 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-19 18:43:59,331 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:43:59,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:43:59,338 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-19 18:43:59,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:43:59,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491624405] [2019-11-19 18:43:59,351 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 18:43:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:43:59,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-19 18:43:59,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:43:59,704 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-19 18:43:59,705 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 18:43:59,707 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:43:59,867 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-19 18:43:59,868 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-19 18:43:59,895 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 18:43:59,896 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:43:59,926 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:43:59,928 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 18:43:59,931 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-19 18:44:00,101 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:00,102 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 18:44:00,105 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:00,326 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-19 18:44:00,327 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:00,661 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-19 18:44:00,662 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-19 18:44:00,663 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 18:44:00,666 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:00,910 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-19 18:44:00,911 INFO L567 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-11-19 18:44:00,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:00,922 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 18:44:00,923 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-11-19 18:44:00,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:01,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:01,025 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:01,056 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 18:44:01,058 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:01,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:01,107 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:01,108 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 18:44:01,110 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:01,177 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-19 18:44:01,178 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 18:44:01,179 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:256, output treesize:25 [2019-11-19 18:44:01,210 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 18:44:01,210 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:44:09,911 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 18:44:09,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491624405] [2019-11-19 18:44:09,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:44:09,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 18:44:09,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419124339] [2019-11-19 18:44:09,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 18:44:09,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 18:44:09,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 18:44:09,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=37, Unknown=3, NotChecked=0, Total=56 [2019-11-19 18:44:09,939 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 8 states. [2019-11-19 18:44:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:44:10,595 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2019-11-19 18:44:10,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 18:44:10,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-11-19 18:44:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:44:10,611 INFO L225 Difference]: With dead ends: 57 [2019-11-19 18:44:10,613 INFO L226 Difference]: Without dead ends: 25 [2019-11-19 18:44:10,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=22, Invalid=47, Unknown=3, NotChecked=0, Total=72 [2019-11-19 18:44:10,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-19 18:44:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-19 18:44:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-19 18:44:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-11-19 18:44:10,667 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2019-11-19 18:44:10,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:44:10,668 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-11-19 18:44:10,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 18:44:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-11-19 18:44:10,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 18:44:10,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:44:10,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:44:10,885 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 18:44:10,886 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:44:10,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:44:10,886 INFO L82 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2019-11-19 18:44:10,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:44:10,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311620329] [2019-11-19 18:44:10,890 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 18:44:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:44:11,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-19 18:44:11,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:44:11,151 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 18:44:11,154 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:11,156 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:11,157 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 18:44:11,160 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:11,160 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 18:44:11,161 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:6 [2019-11-19 18:44:11,281 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-19 18:44:11,281 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 18:44:11,282 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:11,440 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-19 18:44:11,441 INFO L567 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-19 18:44:11,460 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 18:44:11,461 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:11,488 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:11,489 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 18:44:11,490 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-19 18:44:11,633 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:11,633 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 18:44:11,636 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:11,847 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-19 18:44:11,848 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:12,088 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-19 18:44:12,089 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-19 18:44:12,089 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 18:44:12,092 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:12,440 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-19 18:44:12,441 INFO L567 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-11-19 18:44:12,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:12,445 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 18:44:12,446 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-11-19 18:44:12,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:12,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:12,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:12,551 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 18:44:12,552 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:12,558 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:12,593 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:12,594 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 18:44:12,596 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:12,645 INFO L567 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-19 18:44:12,646 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 18:44:12,647 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:260, output treesize:25 [2019-11-19 18:44:12,671 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 18:44:12,671 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:44:16,193 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-19 18:44:16,225 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 18:44:16,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311620329] [2019-11-19 18:44:16,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 18:44:16,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-11-19 18:44:16,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224314205] [2019-11-19 18:44:16,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-19 18:44:16,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 18:44:16,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-19 18:44:16,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=52, Unknown=1, NotChecked=0, Total=72 [2019-11-19 18:44:16,230 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2019-11-19 18:44:17,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 18:44:17,475 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-11-19 18:44:17,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 18:44:17,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-19 18:44:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 18:44:17,477 INFO L225 Difference]: With dead ends: 25 [2019-11-19 18:44:17,477 INFO L226 Difference]: Without dead ends: 23 [2019-11-19 18:44:17,479 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2019-11-19 18:44:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-19 18:44:17,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-19 18:44:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 18:44:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-19 18:44:17,485 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-19 18:44:17,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 18:44:17,486 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-19 18:44:17,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-19 18:44:17,486 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-19 18:44:17,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-19 18:44:17,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 18:44:17,487 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 18:44:17,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 18:44:17,688 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 18:44:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 18:44:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2019-11-19 18:44:17,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 18:44:17,691 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013994213] [2019-11-19 18:44:17,691 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 18:44:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 18:44:18,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-19 18:44:18,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 18:44:18,186 INFO L343 Elim1Store]: treesize reduction 16, result has 70.9 percent of original size [2019-11-19 18:44:18,186 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 18:44:18,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:18,244 INFO L567 ElimStorePlain]: treesize reduction 36, result has 37.9 percent of original size [2019-11-19 18:44:18,245 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 18:44:18,246 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2019-11-19 18:44:18,436 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2019-11-19 18:44:18,437 INFO L343 Elim1Store]: treesize reduction 24, result has 77.4 percent of original size [2019-11-19 18:44:18,437 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 18:44:18,439 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:18,539 INFO L567 ElimStorePlain]: treesize reduction 50, result has 60.0 percent of original size [2019-11-19 18:44:18,545 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 18:44:18,550 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:18,552 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:18,552 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 18:44:18,574 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:18,575 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 18:44:18,575 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:85, output treesize:33 [2019-11-19 18:44:18,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:18,882 WARN L191 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-11-19 18:44:18,883 INFO L343 Elim1Store]: treesize reduction 16, result has 83.7 percent of original size [2019-11-19 18:44:18,884 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 103 [2019-11-19 18:44:18,886 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:19,129 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-11-19 18:44:19,129 INFO L567 ElimStorePlain]: treesize reduction 50, result has 60.6 percent of original size [2019-11-19 18:44:19,167 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:19,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:19,190 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:19,191 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 48 [2019-11-19 18:44:19,192 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:19,268 INFO L567 ElimStorePlain]: treesize reduction 16, result has 83.5 percent of original size [2019-11-19 18:44:19,270 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 18:44:19,270 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:87, output treesize:81 [2019-11-19 18:44:19,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:19,450 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:19,451 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 18:44:19,452 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:19,592 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-11-19 18:44:19,593 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:19,753 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-19 18:44:19,754 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:19,754 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 94 treesize of output 157 [2019-11-19 18:44:19,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:19,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:19,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:19,758 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:19,937 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-11-19 18:44:19,937 INFO L567 ElimStorePlain]: treesize reduction 60, result has 64.5 percent of original size [2019-11-19 18:44:19,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:19,940 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 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 18:44:19,941 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:145, output treesize:114 [2019-11-19 18:44:19,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:20,010 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 18:44:20,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:20,055 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 18:44:20,056 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:20,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-19 18:44:20,139 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 18:44:20,140 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 117 treesize of output 97 [2019-11-19 18:44:20,141 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-19 18:44:20,194 INFO L567 ElimStorePlain]: treesize reduction 54, result has 40.7 percent of original size [2019-11-19 18:44:20,195 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 18:44:20,196 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:228, output treesize:25 [2019-11-19 18:44:20,230 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 18:44:20,230 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 18:44:25,015 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2019-11-19 18:44:25,250 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 18:44:25,251 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 18:44:25,262 INFO L168 Benchmark]: Toolchain (without parser) took 27196.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 960.4 MB in the beginning and 923.7 MB in the end (delta: 36.6 MB). Peak memory consumption was 228.5 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:25,265 INFO L168 Benchmark]: CDTParser took 0.28 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 18:44:25,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:25,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.66 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:25,272 INFO L168 Benchmark]: Boogie Preprocessor took 75.44 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 18:44:25,273 INFO L168 Benchmark]: RCFGBuilder took 553.70 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:25,274 INFO L168 Benchmark]: TraceAbstraction took 26069.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 923.7 MB in the end (delta: 152.2 MB). Peak memory consumption was 217.2 MB. Max. memory is 11.5 GB. [2019-11-19 18:44:25,283 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 428.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 62.66 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.44 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 553.70 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: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26069.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 923.7 MB in the end (delta: 152.2 MB). Peak memory consumption was 217.2 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...