./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer --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 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer --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 73dc70fc086318c728ead326eb8ef835fee9f9a2 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:26:49,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:26:49,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:26:49,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:26:49,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:26:49,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:26:49,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:26:49,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:26:49,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:26:49,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:26:49,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:26:49,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:26:49,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:26:49,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:26:49,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:26:49,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:26:49,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:26:49,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:26:49,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:26:49,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:26:49,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:26:49,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:26:49,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:26:49,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:26:49,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:26:49,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:26:49,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:26:49,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:26:49,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:26:49,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:26:49,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:26:49,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:26:49,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:26:49,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:26:49,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:26:49,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:26:49,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:26:49,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:26:49,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:26:49,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:26:49,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:26:49,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:26:49,366 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:26:49,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:26:49,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:26:49,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:26:49,369 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:26:49,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:26:49,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:26:49,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:26:49,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:26:49,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:26:49,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:26:49,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:26:49,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:26:49,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:26:49,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:26:49,372 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:26:49,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:26:49,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:26:49,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:26:49,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:26:49,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:26:49,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:26:49,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:26:49,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:26:49,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:26:49,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:26:49,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:26:49,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:26:49,375 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-20 00:26:49,514 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:26:49,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:26:49,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:26:49,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:26:49,529 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:26:49,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-20 00:26:49,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a566ca131/c83dad88c9f146658c0d140eeff847b6/FLAGb22ae3ef6 [2019-11-20 00:26:49,996 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:26:49,997 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-20 00:26:50,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a566ca131/c83dad88c9f146658c0d140eeff847b6/FLAGb22ae3ef6 [2019-11-20 00:26:50,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a566ca131/c83dad88c9f146658c0d140eeff847b6 [2019-11-20 00:26:50,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:26:50,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:26:50,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:26:50,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:26:50,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:26:50,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c2d606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50, skipping insertion in model container [2019-11-20 00:26:50,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,331 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:26:50,349 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:26:50,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:26:50,594 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:26:50,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:26:50,648 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:26:50,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50 WrapperNode [2019-11-20 00:26:50,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:26:50,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:26:50,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:26:50,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:26:50,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:26:50,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:26:50,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:26:50,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:26:50,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... [2019-11-20 00:26:50,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:26:50,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:26:50,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:26:50,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:26:50,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/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 [2019-11-20 00:26:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:26:50,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:26:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 00:26:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 00:26:50,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:26:50,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:26:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:26:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 00:26:50,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:26:51,170 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:26:51,171 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 00:26:51,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:51 BoogieIcfgContainer [2019-11-20 00:26:51,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:26:51,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:26:51,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:26:51,176 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:26:51,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:50" (1/3) ... [2019-11-20 00:26:51,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffa28cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:51, skipping insertion in model container [2019-11-20 00:26:51,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:50" (2/3) ... [2019-11-20 00:26:51,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffa28cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:51, skipping insertion in model container [2019-11-20 00:26:51,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:51" (3/3) ... [2019-11-20 00:26:51,179 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-20 00:26:51,189 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:26:51,195 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:26:51,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:26:51,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:26:51,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:26:51,233 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:26:51,233 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:26:51,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:26:51,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:26:51,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:26:51,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:26:51,250 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 00:26:51,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 00:26:51,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:26:51,256 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:26:51,257 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:26:51,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:26:51,262 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-20 00:26:51,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:26:51,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117531781] [2019-11-20 00:26:51,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:26:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:26:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:26:51,369 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117531781] [2019-11-20 00:26:51,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:26:51,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:26:51,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847706980] [2019-11-20 00:26:51,375 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:26:51,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:26:51,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:26:51,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:26:51,389 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 00:26:51,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:26:51,407 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-20 00:26:51,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:26:51,409 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 00:26:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:26:51,421 INFO L225 Difference]: With dead ends: 82 [2019-11-20 00:26:51,421 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 00:26:51,425 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 [2019-11-20 00:26:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 00:26:51,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 00:26:51,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 00:26:51,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-20 00:26:51,462 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-20 00:26:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:26:51,462 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-20 00:26:51,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:26:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-20 00:26:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:26:51,463 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:26:51,464 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:26:51,464 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:26:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:26:51,465 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-20 00:26:51,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:26:51,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494481696] [2019-11-20 00:26:51,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:26:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:26:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:26:51,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:26:51,649 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:26:51,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:26:51 BoogieIcfgContainer [2019-11-20 00:26:51,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:26:51,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:26:51,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:26:51,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:26:51,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:51" (3/4) ... [2019-11-20 00:26:51,710 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:26:51,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:26:51,713 INFO L168 Benchmark]: Toolchain (without parser) took 1393.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:51,714 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:26:51,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -200.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:51,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:51,717 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 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. [2019-11-20 00:26:51,718 INFO L168 Benchmark]: RCFGBuilder took 440.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:51,718 INFO L168 Benchmark]: TraceAbstraction took 529.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:26:51,719 INFO L168 Benchmark]: Witness Printer took 6.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:26:51,728 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -200.9 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.66 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 440.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 529.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 0.1.24-678e011 [2019-11-20 00:26:53,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:26:53,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:26:53,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:26:53,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:26:53,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:26:53,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:26:53,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:26:53,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:26:53,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:26:53,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:26:53,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:26:53,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:26:53,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:26:53,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:26:53,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:26:53,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:26:53,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:26:53,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:26:53,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:26:53,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:26:53,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:26:53,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:26:53,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:26:53,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:26:53,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:26:53,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:26:53,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:26:53,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:26:53,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:26:53,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:26:53,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:26:53,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:26:53,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:26:53,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:26:53,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:26:53,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:26:53,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:26:53,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:26:53,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:26:53,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:26:53,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:26:53,846 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:26:53,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:26:53,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:26:53,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:26:53,848 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:26:53,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:26:53,849 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:26:53,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:26:53,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:26:53,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:26:53,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:26:53,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:26:53,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:26:53,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:26:53,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:26:53,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:26:53,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:26:53,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:26:53,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:26:53,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:26:53,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:26:53,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:26:53,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:26:53,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:26:53,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:26:53,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:26:53,853 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:26:53,853 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:26:53,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:26:53,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:26:53,864 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer 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 -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-20 00:26:54,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:26:54,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:26:54,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:26:54,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:26:54,157 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:26:54,157 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-20 00:26:54,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a0901ed8f/a675576f02a24c128d507f3360f256bf/FLAGd6d695365 [2019-11-20 00:26:54,634 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:26:54,634 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-20 00:26:54,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a0901ed8f/a675576f02a24c128d507f3360f256bf/FLAGd6d695365 [2019-11-20 00:26:54,652 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/data/a0901ed8f/a675576f02a24c128d507f3360f256bf [2019-11-20 00:26:54,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:26:54,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:26:54,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:26:54,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:26:54,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:26:54,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:54,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f1fa09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54, skipping insertion in model container [2019-11-20 00:26:54,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:54,670 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:26:54,689 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:26:54,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:26:54,875 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:26:54,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:26:54,998 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:26:54,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54 WrapperNode [2019-11-20 00:26:54,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:26:54,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:26:54,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:26:54,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:26:55,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:26:55,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:26:55,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:26:55,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:26:55,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... [2019-11-20 00:26:55,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:26:55,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:26:55,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:26:55,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:26:55,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/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 [2019-11-20 00:26:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-20 00:26:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:26:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 00:26:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:26:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:26:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:26:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 00:26:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:26:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:26:56,196 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:26:56,197 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 00:26:56,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:56 BoogieIcfgContainer [2019-11-20 00:26:56,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:26:56,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:26:56,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:26:56,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:26:56,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:54" (1/3) ... [2019-11-20 00:26:56,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308fc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:56, skipping insertion in model container [2019-11-20 00:26:56,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:54" (2/3) ... [2019-11-20 00:26:56,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308fc1c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:56, skipping insertion in model container [2019-11-20 00:26:56,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:56" (3/3) ... [2019-11-20 00:26:56,207 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-20 00:26:56,215 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:26:56,221 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:26:56,230 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:26:56,252 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:26:56,252 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:26:56,252 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:26:56,252 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:26:56,252 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:26:56,252 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:26:56,253 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:26:56,253 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:26:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 00:26:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 00:26:56,270 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:26:56,271 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:26:56,272 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:26:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:26:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-20 00:26:56,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:26:56,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885984708] [2019-11-20 00:26:56,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/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 [2019-11-20 00:26:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:26:56,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 00:26:56,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:26:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:26:56,611 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:26:56,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:26:56,615 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885984708] [2019-11-20 00:26:56,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:26:56,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:26:56,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081384834] [2019-11-20 00:26:56,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:26:56,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:26:56,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:26:56,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:26:56,633 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-20 00:26:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:26:56,650 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-20 00:26:56,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:26:56,651 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 00:26:56,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:26:56,661 INFO L225 Difference]: With dead ends: 82 [2019-11-20 00:26:56,662 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 00:26:56,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:26:56,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 00:26:56,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 00:26:56,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 00:26:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-20 00:26:56,699 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-20 00:26:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:26:56,700 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-20 00:26:56,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:26:56,700 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-20 00:26:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 00:26:56,701 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:26:56,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:26:56,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 00:26:56,917 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:26:56,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:26:56,917 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-20 00:26:56,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:26:56,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113773235] [2019-11-20 00:26:56,918 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/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 [2019-11-20 00:26:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:26:57,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 00:26:57,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:26:59,069 WARN L191 SmtUtils]: Spent 986.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-20 00:26:59,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:27:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:27:00,906 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:27:19,863 WARN L191 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 8 [2019-11-20 00:27:19,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:27:19,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113773235] [2019-11-20 00:27:19,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:27:19,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 00:27:19,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150500385] [2019-11-20 00:27:19,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 00:27:19,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:27:19,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 00:27:19,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=64, Unknown=4, NotChecked=0, Total=90 [2019-11-20 00:27:19,998 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-11-20 00:27:22,514 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2019-11-20 00:27:24,301 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2019-11-20 00:27:25,327 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2019-11-20 00:27:25,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:27:25,372 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-20 00:27:25,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:27:25,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-20 00:27:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:27:25,374 INFO L225 Difference]: With dead ends: 44 [2019-11-20 00:27:25,374 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 00:27:25,375 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=49, Invalid=103, Unknown=4, NotChecked=0, Total=156 [2019-11-20 00:27:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 00:27:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-20 00:27:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-20 00:27:25,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-20 00:27:25,382 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-20 00:27:25,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:27:25,382 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-20 00:27:25,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 00:27:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-20 00:27:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 00:27:25,383 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:27:25,384 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:27:25,599 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 00:27:25,600 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:27:25,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:27:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-20 00:27:25,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:27:25,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960970903] [2019-11-20 00:27:25,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/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 [2019-11-20 00:27:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:27:25,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 00:27:25,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:27:25,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:27:25,737 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:27:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:27:25,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960970903] [2019-11-20 00:27:25,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:27:25,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 00:27:25,805 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518968281] [2019-11-20 00:27:25,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:27:25,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:27:25,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:27:25,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:27:25,806 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-11-20 00:27:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:27:25,887 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-20 00:27:25,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:27:25,887 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-20 00:27:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:27:25,887 INFO L225 Difference]: With dead ends: 39 [2019-11-20 00:27:25,887 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:27:25,888 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-20 00:27:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:27:25,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:27:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:27:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:27:25,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-20 00:27:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:27:25,889 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:27:25,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:27:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:27:25,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:27:26,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 00:27:26,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:27:26,199 INFO L447 ceAbstractionStarter]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-11-20 00:27:26,199 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-20 00:27:26,200 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) [2019-11-20 00:27:26,200 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-20 00:27:26,201 INFO L444 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,201 INFO L440 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-20 00:27:26,201 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-20 00:27:26,201 INFO L444 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-20 00:27:26,202 INFO L444 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-20 00:27:26,202 INFO L440 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-20 00:27:26,202 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-20 00:27:26,202 INFO L440 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-20 00:27:26,203 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,203 INFO L444 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-20 00:27:26,204 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:27:26,204 INFO L444 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-20 00:27:26,204 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-20 00:27:26,204 INFO L440 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-20 00:27:26,204 INFO L444 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,204 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-20 00:27:26,205 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L444 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L444 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-20 00:27:26,205 INFO L440 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-20 00:27:26,206 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-20 00:27:26,206 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-20 00:27:26,206 INFO L440 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-20 00:27:26,206 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-20 00:27:26,207 INFO L444 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-20 00:27:26,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:27:26 BoogieIcfgContainer [2019-11-20 00:27:26,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:27:26,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:27:26,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:27:26,223 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:27:26,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:56" (3/4) ... [2019-11-20 00:27:26,227 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:27:26,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 00:27:26,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 00:27:26,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:27:26,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b081d8bc-804e-4098-861d-434e1c64bffa/bin/uautomizer/witness.graphml [2019-11-20 00:27:26,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:27:26,280 INFO L168 Benchmark]: Toolchain (without parser) took 31623.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.8 MB in the beginning and 952.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 118.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:27:26,280 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:27:26,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:27:26,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:27:26,282 INFO L168 Benchmark]: Boogie Preprocessor took 44.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:27:26,282 INFO L168 Benchmark]: RCFGBuilder took 1098.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:27:26,283 INFO L168 Benchmark]: TraceAbstraction took 30022.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:27:26,283 INFO L168 Benchmark]: Witness Printer took 55.90 ms. Allocated memory is still 1.1 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:27:26,285 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -143.8 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.48 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1098.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 30022.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 105.8 MB). Peak memory consumption was 105.8 MB. Max. memory is 11.5 GB. * Witness Printer took 55.90 ms. Allocated memory is still 1.1 GB. Free memory is still 952.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 29.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 200 SDs, 0 SdLazy, 31 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 27.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 32 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 3851 SizeOfPredicates, 15 NumberOfNonLiveVariables, 151 ConjunctsInSsa, 19 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! Received shutdown request...