./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0981.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab 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/float-newlib/double_req_bl_0981.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 .................................................................................................................................................................................................................................................................................................................. 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/float-newlib/double_req_bl_0981.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:44:24,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:44:24,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:44:24,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:44:24,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:44:24,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:44:24,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:44:24,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:44:24,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:44:24,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:44:24,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:44:24,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:44:24,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:44:24,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:44:24,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:44:24,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:44:24,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:44:24,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:44:24,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:44:24,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:44:24,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:44:24,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:44:24,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:44:24,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:44:24,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:44:24,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:44:24,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:44:24,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:44:24,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:44:24,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:44:24,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:44:24,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:44:24,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:44:24,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:44:24,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:44:24,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:44:24,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:44:24,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:44:24,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:44:24,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:44:24,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:44:24,503 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:44:24,528 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:44:24,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:44:24,533 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:44:24,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:44:24,533 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:44:24,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:44:24,534 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:44:24,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:44:24,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:44:24,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:44:24,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:44:24,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:44:24,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:44:24,537 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:44:24,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:44:24,538 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:44:24,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:44:24,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:44:24,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:44:24,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:44:24,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:44:24,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:44:24,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:44:24,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:44:24,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:44:24,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:44:24,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:44:24,542 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:44:24,542 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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-11-27 23:44:24,832 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:44:24,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:44:24,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:44:24,856 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:44:24,857 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:44:24,858 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-27 23:44:24,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f28a1872/51b4442da77b4d3ba04efdb6e7399b1f/FLAG8fd590e2f [2019-11-27 23:44:25,358 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:44:25,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-27 23:44:25,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f28a1872/51b4442da77b4d3ba04efdb6e7399b1f/FLAG8fd590e2f [2019-11-27 23:44:25,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f28a1872/51b4442da77b4d3ba04efdb6e7399b1f [2019-11-27 23:44:25,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:44:25,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:44:25,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:25,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:44:25,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:44:25,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:25" (1/1) ... [2019-11-27 23:44:25,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39472393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:25, skipping insertion in model container [2019-11-27 23:44:25,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:25" (1/1) ... [2019-11-27 23:44:25,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:44:25,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:44:26,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:26,051 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:44:26,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:26,211 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:44:26,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26 WrapperNode [2019-11-27 23:44:26,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:26,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:26,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:44:26,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:44:26,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:26,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:44:26,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:44:26,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:44:26,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (1/1) ... [2019-11-27 23:44:26,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:44:26,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:44:26,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:44:26,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:44:26,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (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 [2019-11-27 23:44:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:44:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:44:26,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:44:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:44:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:44:26,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:44:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:44:26,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:44:26,984 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:44:26,984 INFO L297 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-27 23:44:26,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:26 BoogieIcfgContainer [2019-11-27 23:44:26,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:44:26,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:44:26,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:44:26,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:44:26,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:44:25" (1/3) ... [2019-11-27 23:44:26,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7d2e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:26, skipping insertion in model container [2019-11-27 23:44:26,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:26" (2/3) ... [2019-11-27 23:44:26,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7d2e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:44:26, skipping insertion in model container [2019-11-27 23:44:26,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:26" (3/3) ... [2019-11-27 23:44:26,999 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-11-27 23:44:27,009 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:44:27,018 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:44:27,032 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:44:27,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:44:27,066 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:44:27,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:44:27,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:44:27,067 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:44:27,067 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:44:27,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:44:27,068 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:44:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-27 23:44:27,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:44:27,099 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:27,100 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:27,101 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-27 23:44:27,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:27,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000023318] [2019-11-27 23:44:27,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:44:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:44:27,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000023318] [2019-11-27 23:44:27,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:44:27,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:44:27,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225093502] [2019-11-27 23:44:27,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:44:27,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:44:27,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:44:27,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:44:27,322 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-27 23:44:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:44:27,346 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-27 23:44:27,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:44:27,348 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-27 23:44:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:44:27,359 INFO L225 Difference]: With dead ends: 88 [2019-11-27 23:44:27,359 INFO L226 Difference]: Without dead ends: 42 [2019-11-27 23:44:27,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:44:27,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-27 23:44:27,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-27 23:44:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-27 23:44:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-27 23:44:27,400 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-27 23:44:27,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:44:27,401 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-27 23:44:27,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:44:27,401 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-27 23:44:27,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:44:27,402 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:44:27,402 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:44:27,402 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:44:27,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:44:27,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-27 23:44:27,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:44:27,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926161250] [2019-11-27 23:44:27,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:44:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:44:27,671 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:44:27,672 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:44:27,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:44:27 BoogieIcfgContainer [2019-11-27 23:44:27,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:44:27,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:44:27,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:44:27,760 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:44:27,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:44:26" (3/4) ... [2019-11-27 23:44:27,764 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:44:27,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:44:27,769 INFO L168 Benchmark]: Toolchain (without parser) took 2074.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -112.8 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:27,770 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:27,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:27,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:44:27,774 INFO L168 Benchmark]: Boogie Preprocessor took 65.38 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. [2019-11-27 23:44:27,776 INFO L168 Benchmark]: RCFGBuilder took 649.02 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:27,777 INFO L168 Benchmark]: TraceAbstraction took 769.72 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: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:44:27,778 INFO L168 Benchmark]: Witness Printer took 6.27 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. [2019-11-27 23:44:27,792 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 517.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 649.02 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 769.72 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: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.27 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 131, overapproximation of bitwiseAnd at line 167. Possible FailurePath: [L15-L24] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L26] static const double zero = 0.0; [L109-L112] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L114] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L181] double x = 1.0 / 0.0; [L117] double y, z; [L118] __int32_t i, k, hx; [L119] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L122] ieee_double_shape_type ew_u; [L123] ew_u.value = (x) [L124] EXPR ew_u.parts.msw [L124] (hx) = ew_u.parts.msw [L125] EXPR ew_u.parts.lsw [L125] (lx) = ew_u.parts.lsw [L128] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L129] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L130] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L131] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double res = __ieee754_log10(x); [L160] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L162] ieee_double_shape_type ew_u; [L163] ew_u.value = (x) [L164] EXPR ew_u.parts.msw [L164] (hx) = ew_u.parts.msw [L165] EXPR ew_u.parts.lsw [L165] (lx) = ew_u.parts.lsw [L167] hx &= 0x7fffffff [L168] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L169] hx = 0x7ff00000 - hx [L170] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L185] COND TRUE !isinf_double(res) [L186] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.1.24-30f4e4a [2019-11-27 23:44:29,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:44:29,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:44:29,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:44:29,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:44:29,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:44:29,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:44:29,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:44:29,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:44:29,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:44:29,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:44:29,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:44:29,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:44:29,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:44:29,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:44:29,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:44:29,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:44:29,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:44:29,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:44:29,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:44:29,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:44:29,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:44:29,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:44:29,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:44:29,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:44:29,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:44:29,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:44:29,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:44:29,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:44:29,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:44:29,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:44:29,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:44:29,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:44:29,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:44:29,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:44:29,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:44:29,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:44:29,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:44:29,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:44:29,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:44:29,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:44:29,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:44:29,869 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:44:29,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:44:29,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:44:29,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:44:29,870 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:44:29,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:44:29,871 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:44:29,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:44:29,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:44:29,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:44:29,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:44:29,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:44:29,872 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:44:29,872 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:44:29,873 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:44:29,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:44:29,873 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:44:29,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:44:29,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:44:29,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:44:29,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:44:29,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:44:29,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:44:29,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:44:29,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:44:29,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:44:29,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:44:29,875 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:44:29,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:44:29,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:44:29,876 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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2019-11-27 23:44:30,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:44:30,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:44:30,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:44:30,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:44:30,226 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:44:30,227 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-27 23:44:30,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9fdde5c5/eb1087d41630485bb5b07116f7b12e49/FLAG5ccd6f18b [2019-11-27 23:44:30,710 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:44:30,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2019-11-27 23:44:30,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9fdde5c5/eb1087d41630485bb5b07116f7b12e49/FLAG5ccd6f18b [2019-11-27 23:44:31,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9fdde5c5/eb1087d41630485bb5b07116f7b12e49 [2019-11-27 23:44:31,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:44:31,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:44:31,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:31,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:44:31,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:44:31,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e4995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31, skipping insertion in model container [2019-11-27 23:44:31,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:44:31,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:44:31,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:31,337 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:44:31,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:44:31,508 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:44:31,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31 WrapperNode [2019-11-27 23:44:31,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:44:31,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:31,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:44:31,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:44:31,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:44:31,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:44:31,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:44:31,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:44:31,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (1/1) ... [2019-11-27 23:44:31,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:44:31,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:44:31,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:44:31,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:44:31,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (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 [2019-11-27 23:44:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:44:31,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:44:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:44:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:44:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:44:31,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:44:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:44:31,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:03,597 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:03,597 INFO L297 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-27 23:45:03,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:03 BoogieIcfgContainer [2019-11-27 23:45:03,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:03,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:03,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:03,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:03,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:44:31" (1/3) ... [2019-11-27 23:45:03,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af0ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:03, skipping insertion in model container [2019-11-27 23:45:03,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:44:31" (2/3) ... [2019-11-27 23:45:03,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af0ba32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:03, skipping insertion in model container [2019-11-27 23:45:03,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:03" (3/3) ... [2019-11-27 23:45:03,610 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2019-11-27 23:45:03,621 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:03,631 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:03,644 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:03,689 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:03,691 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:03,691 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:03,691 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:03,691 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:03,692 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:03,692 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:03,692 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:03,711 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-11-27 23:45:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:03,718 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:03,719 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:03,719 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:03,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:03,726 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2019-11-27 23:45:03,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:03,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839489382] [2019-11-27 23:45:03,740 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 [2019-11-27 23:45:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:04,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:04,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,690 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:04,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839489382] [2019-11-27 23:45:04,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:04,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:04,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909743248] [2019-11-27 23:45:04,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:04,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:04,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:04,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,717 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2019-11-27 23:45:04,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:04,742 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2019-11-27 23:45:04,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:04,744 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-27 23:45:04,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:04,767 INFO L225 Difference]: With dead ends: 88 [2019-11-27 23:45:04,767 INFO L226 Difference]: Without dead ends: 42 [2019-11-27 23:45:04,771 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-27 23:45:04,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-11-27 23:45:04,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-27 23:45:04,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2019-11-27 23:45:04,822 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2019-11-27 23:45:04,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:04,822 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2019-11-27 23:45:04,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2019-11-27 23:45:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:45:04,823 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:04,823 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:05,032 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:05,033 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:05,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:05,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2019-11-27 23:45:05,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:05,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863097176] [2019-11-27 23:45:05,035 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 [2019-11-27 23:45:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:06,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-27 23:45:06,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:06,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:06,182 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:06,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863097176] [2019-11-27 23:45:06,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:06,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-27 23:45:06,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682437423] [2019-11-27 23:45:06,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-27 23:45:06,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:06,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-27 23:45:06,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:45:06,274 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2019-11-27 23:45:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:06,473 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2019-11-27 23:45:06,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:45:06,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-27 23:45:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:06,483 INFO L225 Difference]: With dead ends: 51 [2019-11-27 23:45:06,483 INFO L226 Difference]: Without dead ends: 15 [2019-11-27 23:45:06,485 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-27 23:45:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-27 23:45:06,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-27 23:45:06,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-27 23:45:06,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2019-11-27 23:45:06,494 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2019-11-27 23:45:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:06,495 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2019-11-27 23:45:06,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-27 23:45:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2019-11-27 23:45:06,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:45:06,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:06,500 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:06,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:06,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:06,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:06,706 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2019-11-27 23:45:06,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:06,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235435389] [2019-11-27 23:45:06,708 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 [2019-11-27 23:45:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:06,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-27 23:45:07,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:07,142 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2019-11-27 23:45:07,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:45:07,175 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 58 [2019-11-27 23:45:07,176 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,212 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,236 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2019-11-27 23:45:07,237 INFO L508 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,260 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,271 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16 [2019-11-27 23:45:07,273 INFO L508 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,288 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,289 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,310 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,311 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:45:07,311 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:84, output treesize:41 [2019-11-27 23:45:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:07,567 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:07,779 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,780 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 54 [2019-11-27 23:45:07,803 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-27 23:45:07,804 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,818 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,831 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,832 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 16 [2019-11-27 23:45:07,833 INFO L508 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,837 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,837 INFO L508 ElimStorePlain]: Start of recursive call 2: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:45:07,865 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:45:07,867 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:45:07,868 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:101, output treesize:59 [2019-11-27 23:45:09,882 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_4_3 (_ BitVec 64)) (v_skolemized_v_prenex_5_3 (_ BitVec 64))) (let ((.cse1 ((_ extract 63 32) v_skolemized_v_prenex_4_3))) (or (not (= c_ULTIMATE.start_isinf_double_~x (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)))) (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) .cse1) (bvlshr (let ((.cse2 ((_ extract 31 0) v_skolemized_v_prenex_5_3))) (bvor .cse2 (bvneg .cse2))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= ((_ extract 63 32) v_skolemized_v_prenex_5_3) .cse1))))) is different from false [2019-11-27 23:45:11,905 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_4_3 (_ BitVec 64)) (v_skolemized_v_prenex_5_3 (_ BitVec 64))) (let ((.cse1 ((_ extract 63 32) v_skolemized_v_prenex_4_3))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) .cse1) (bvlshr (let ((.cse2 ((_ extract 31 0) v_skolemized_v_prenex_5_3))) (bvor .cse2 (bvneg .cse2))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= |c_ULTIMATE.start___ieee754_log10_#res| (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3)))) (not (= ((_ extract 63 32) v_skolemized_v_prenex_5_3) .cse1))))) is different from false [2019-11-27 23:45:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:12,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235435389] [2019-11-27 23:45:12,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:12,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 6] imperfect sequences [] total 13 [2019-11-27 23:45:12,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869630478] [2019-11-27 23:45:12,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-27 23:45:12,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:12,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-27 23:45:12,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=109, Unknown=2, NotChecked=42, Total=182 [2019-11-27 23:45:12,104 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 14 states. [2019-11-27 23:45:12,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:12,105 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2019-11-27 23:45:12,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:12,106 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-11-27 23:45:12,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:12,106 INFO L225 Difference]: With dead ends: 15 [2019-11-27 23:45:12,106 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:45:12,107 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=29, Invalid=109, Unknown=2, NotChecked=42, Total=182 [2019-11-27 23:45:12,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:45:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:45:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:45:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:45:12,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-27 23:45:12,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:12,110 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:45:12,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-27 23:45:12,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:45:12,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:45:12,325 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:12,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:45:12,393 INFO L246 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point L102(lines 102 105) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point L69(lines 69 74) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point L94(lines 94 106) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:45:12,394 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:45:12,395 INFO L246 CegarLoopResult]: For program point L185(lines 185 188) no Hoare annotation was computed. [2019-11-27 23:45:12,395 INFO L246 CegarLoopResult]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2019-11-27 23:45:12,395 INFO L242 CegarLoopResult]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2019-11-27 23:45:12,395 INFO L246 CegarLoopResult]: For program point L161-1(lines 161 166) no Hoare annotation was computed. [2019-11-27 23:45:12,395 INFO L242 CegarLoopResult]: At program point L161-2(lines 161 166) the Hoare annotation is: false [2019-11-27 23:45:12,396 INFO L246 CegarLoopResult]: For program point L161-3(lines 161 166) no Hoare annotation was computed. [2019-11-27 23:45:12,396 INFO L246 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2019-11-27 23:45:12,397 INFO L242 CegarLoopResult]: At program point L170(lines 159 171) the Hoare annotation is: false [2019-11-27 23:45:12,397 INFO L246 CegarLoopResult]: For program point L129(lines 129 141) no Hoare annotation was computed. [2019-11-27 23:45:12,397 INFO L246 CegarLoopResult]: For program point L129-1(lines 116 156) no Hoare annotation was computed. [2019-11-27 23:45:12,397 INFO L246 CegarLoopResult]: For program point L96(lines 96 100) no Hoare annotation was computed. [2019-11-27 23:45:12,398 INFO L246 CegarLoopResult]: For program point L121-1(lines 121 126) no Hoare annotation was computed. [2019-11-27 23:45:12,399 INFO L242 CegarLoopResult]: At program point L121-2(lines 121 126) the Hoare annotation is: false [2019-11-27 23:45:12,399 INFO L246 CegarLoopResult]: For program point L121-3(lines 121 126) no Hoare annotation was computed. [2019-11-27 23:45:12,399 INFO L242 CegarLoopResult]: At program point L105(lines 28 107) the Hoare annotation is: false [2019-11-27 23:45:12,400 INFO L246 CegarLoopResult]: For program point L130(lines 130 131) no Hoare annotation was computed. [2019-11-27 23:45:12,400 INFO L242 CegarLoopResult]: At program point L155(lines 116 156) the Hoare annotation is: false [2019-11-27 23:45:12,400 INFO L246 CegarLoopResult]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2019-11-27 23:45:12,400 INFO L242 CegarLoopResult]: At program point L48-2(lines 48 52) the Hoare annotation is: false [2019-11-27 23:45:12,401 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:45:12,401 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 186) no Hoare annotation was computed. [2019-11-27 23:45:12,401 INFO L246 CegarLoopResult]: For program point L148-1(lines 148 153) no Hoare annotation was computed. [2019-11-27 23:45:12,401 INFO L242 CegarLoopResult]: At program point L148-2(lines 148 153) the Hoare annotation is: false [2019-11-27 23:45:12,402 INFO L246 CegarLoopResult]: For program point L148-3(lines 148 153) no Hoare annotation was computed. [2019-11-27 23:45:12,402 INFO L246 CegarLoopResult]: For program point L41(lines 41 53) no Hoare annotation was computed. [2019-11-27 23:45:12,402 INFO L246 CegarLoopResult]: For program point L41-1(lines 28 107) no Hoare annotation was computed. [2019-11-27 23:45:12,402 INFO L246 CegarLoopResult]: For program point L132(lines 132 133) no Hoare annotation was computed. [2019-11-27 23:45:12,403 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:45:12,403 INFO L246 CegarLoopResult]: For program point L33-1(lines 33 38) no Hoare annotation was computed. [2019-11-27 23:45:12,403 INFO L242 CegarLoopResult]: At program point L33-2(lines 33 38) the Hoare annotation is: false [2019-11-27 23:45:12,403 INFO L246 CegarLoopResult]: For program point L33-3(lines 33 38) no Hoare annotation was computed. [2019-11-27 23:45:12,406 INFO L249 CegarLoopResult]: At program point L190(lines 173 191) the Hoare annotation is: true [2019-11-27 23:45:12,406 INFO L246 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-27 23:45:12,406 INFO L246 CegarLoopResult]: For program point L67(lines 67 83) no Hoare annotation was computed. [2019-11-27 23:45:12,406 INFO L246 CegarLoopResult]: For program point L59-1(lines 59 64) no Hoare annotation was computed. [2019-11-27 23:45:12,407 INFO L242 CegarLoopResult]: At program point L59-2(lines 59 64) the Hoare annotation is: false [2019-11-27 23:45:12,407 INFO L246 CegarLoopResult]: For program point L59-3(lines 59 64) no Hoare annotation was computed. [2019-11-27 23:45:12,407 INFO L246 CegarLoopResult]: For program point L68(lines 68 75) no Hoare annotation was computed. [2019-11-27 23:45:12,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:12 BoogieIcfgContainer [2019-11-27 23:45:12,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:12,425 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:12,425 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:12,425 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:12,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:03" (3/4) ... [2019-11-27 23:45:12,438 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:45:12,461 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2019-11-27 23:45:12,462 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-27 23:45:12,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:45:12,590 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:45:12,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:12,591 INFO L168 Benchmark]: Toolchain (without parser) took 41529.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.0 MB in the beginning and 949.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 157.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,592 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:12,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,593 INFO L168 Benchmark]: Boogie Preprocessor took 76.58 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. [2019-11-27 23:45:12,593 INFO L168 Benchmark]: RCFGBuilder took 31927.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,594 INFO L168 Benchmark]: TraceAbstraction took 8824.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.7 MB in the end (delta: 132.3 MB). Peak memory consumption was 132.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,594 INFO L168 Benchmark]: Witness Printer took 165.36 ms. Allocated memory is still 1.2 GB. Free memory was 962.7 MB in the beginning and 949.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:12,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 445.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 76.58 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 31927.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8824.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.7 MB in the end (delta: 132.3 MB). Peak memory consumption was 132.3 MB. Max. memory is 11.5 GB. * Witness Printer took 165.36 ms. Allocated memory is still 1.2 GB. Free memory was 962.7 MB in the beginning and 949.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 186]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Result: SAFE, OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 33 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 74 ConstructedInterpolants, 11 QuantifiedInterpolants, 8731 SizeOfPredicates, 19 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...