./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3696439220bbea1d6ed5ed3b22aa10206af5de ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a3696439220bbea1d6ed5ed3b22aa10206af5de .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:46:45,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:46:45,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:46:45,549 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:46:45,549 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:46:45,550 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:46:45,550 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:46:45,552 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:46:45,553 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:46:45,553 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:46:45,554 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:46:45,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:46:45,555 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:46:45,555 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:46:45,556 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:46:45,557 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:46:45,557 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:46:45,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:46:45,559 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:46:45,560 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:46:45,561 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:46:45,562 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:46:45,564 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:46:45,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:46:45,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:46:45,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:46:45,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:46:45,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:46:45,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:46:45,567 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:46:45,567 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:46:45,567 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:46:45,567 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:46:45,567 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:46:45,568 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:46:45,568 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:46:45,569 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 12:46:45,576 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:46:45,577 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:46:45,577 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:46:45,578 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 12:46:45,578 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 12:46:45,579 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:46:45,579 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:46:45,579 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:46:45,579 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:46:45,580 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:46:45,581 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:46:45,581 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:46:45,581 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:46:45,581 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:46:45,581 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:46:45,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:46:45,582 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:46:45,582 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 12:46:45,583 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan 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 -> Taipan 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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2018-11-10 12:46:45,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:46:45,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:46:45,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:46:45,623 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:46:45,623 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:46:45,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:45,675 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/89f023757/d6041b6dba054526b7f63e1c31304df8/FLAG36fdf6d69 [2018-11-10 12:46:46,068 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:46:46,069 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:46,075 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/89f023757/d6041b6dba054526b7f63e1c31304df8/FLAG36fdf6d69 [2018-11-10 12:46:46,089 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/89f023757/d6041b6dba054526b7f63e1c31304df8 [2018-11-10 12:46:46,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:46:46,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:46:46,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:46:46,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:46:46,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:46:46,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549999d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46, skipping insertion in model container [2018-11-10 12:46:46,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:46:46,131 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:46:46,271 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:46:46,273 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:46:46,289 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:46:46,304 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:46:46,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46 WrapperNode [2018-11-10 12:46:46,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:46:46,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:46:46,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:46:46,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:46:46,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:46:46,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:46:46,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:46:46,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:46:46,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... [2018-11-10 12:46:46,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:46:46,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:46:46,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:46:46,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:46:46,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/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 [2018-11-10 12:46:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:46:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:46:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:46:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:46:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 12:46:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 12:46:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:46:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:46:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 12:46:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 12:46:46,680 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:46:46,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:46 BoogieIcfgContainer [2018-11-10 12:46:46,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:46:46,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:46:46,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:46:46,684 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:46:46,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:46:46" (1/3) ... [2018-11-10 12:46:46,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1402480c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:46:46, skipping insertion in model container [2018-11-10 12:46:46,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:46" (2/3) ... [2018-11-10 12:46:46,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1402480c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:46:46, skipping insertion in model container [2018-11-10 12:46:46,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:46" (3/3) ... [2018-11-10 12:46:46,688 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:46,698 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:46:46,704 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:46:46,719 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:46:46,742 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:46:46,742 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:46:46,742 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:46:46,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:46:46,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:46:46,742 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:46:46,742 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:46:46,742 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:46:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 12:46:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:46:46,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:46,761 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:46,763 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:46,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:46,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-11-10 12:46:46,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:46:46,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:46:46,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:46,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:46:46,810 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:46:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:46,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:46,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:46:46,875 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 12:46:46,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:46:46,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:46:46,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:46:46,891 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 12:46:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:46,907 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 12:46:46,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:46:46,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 12:46:46,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:46,914 INFO L225 Difference]: With dead ends: 68 [2018-11-10 12:46:46,915 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 12:46:46,917 INFO L605 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 [2018-11-10 12:46:46,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 12:46:46,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 12:46:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 12:46:46,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 12:46:46,946 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-10 12:46:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:46,946 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 12:46:46,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:46:46,947 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 12:46:46,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:46:46,948 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:46,948 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:46,948 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:46,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:46,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-11-10 12:46:46,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 12:46:46,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:46:46,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:46,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:46:46,950 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 12:46:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:46:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:46:47,030 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:46:47,043 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,043 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,043 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,044 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,045 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,046 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 12:46:47,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,047 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 12:46:47,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:46:47 BoogieIcfgContainer [2018-11-10 12:46:47,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:46:47,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:46:47,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:46:47,058 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:46:47,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:46" (3/4) ... [2018-11-10 12:46:47,062 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:46:47,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:46:47,063 INFO L168 Benchmark]: Toolchain (without parser) took 970.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -107.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,065 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:46:47,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.70 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,066 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.58 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,067 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,067 INFO L168 Benchmark]: RCFGBuilder took 319.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,068 INFO L168 Benchmark]: TraceAbstraction took 376.61 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:47,069 INFO L168 Benchmark]: Witness Printer took 4.54 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. [2018-11-10 12:46:47,072 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.70 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.58 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.99 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 319.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -156.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 376.61 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 23, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L75] float x = 0.0f; VAL [x=0] [L76] CALL, EXPR round_float(x) [L13] __uint32_t w; [L15] int exponent_less_127; [L18] CALL ieee_float_shape_type gf_u; [L18] RET ieee_float_shape_type gf_u; [L19] CALL gf_u.value = (x) [L19] RET gf_u.value = (x) [L20] CALL, EXPR gf_u.word [L20] RET, EXPR gf_u.word [L20] (w) = gf_u.word [L20] RET (w) = gf_u.word [L21] COND FALSE !(0) [L23] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L25] COND FALSE !(exponent_less_127 < 23) [L41] COND TRUE exponent_less_127 == 128 [L43] RET return x + x; [L76] EXPR round_float(x) VAL [round_float(x)=6, x=0] [L76] float res = round_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=6, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [res=6, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-1dbac8b [2018-11-10 12:46:48,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:46:48,661 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:46:48,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:46:48,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:46:48,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:46:48,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:46:48,675 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:46:48,676 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:46:48,677 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:46:48,678 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:46:48,678 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:46:48,679 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:46:48,679 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:46:48,680 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:46:48,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:46:48,682 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:46:48,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:46:48,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:46:48,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:46:48,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:46:48,688 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:46:48,690 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:46:48,690 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:46:48,690 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:46:48,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:46:48,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:46:48,692 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:46:48,693 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:46:48,694 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:46:48,694 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:46:48,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:46:48,695 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:46:48,695 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:46:48,696 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:46:48,696 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:46:48,696 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 12:46:48,708 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:46:48,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:46:48,709 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:46:48,709 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 12:46:48,709 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 12:46:48,709 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 12:46:48,709 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 12:46:48,710 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 12:46:48,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:46:48,710 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:46:48,711 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:46:48,712 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:46:48,712 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:46:48,713 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:46:48,713 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:46:48,714 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:46:48,714 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan 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 -> Taipan 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 -> 9a3696439220bbea1d6ed5ed3b22aa10206af5de [2018-11-10 12:46:48,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:46:48,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:46:48,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:46:48,762 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:46:48,763 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:46:48,763 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:48,814 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/1972e10ca/a542cfb0e2c347d58928fbed409a5a14/FLAGcddb19d52 [2018-11-10 12:46:49,153 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:46:49,153 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/sv-benchmarks/c/float-newlib/float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:49,159 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/1972e10ca/a542cfb0e2c347d58928fbed409a5a14/FLAGcddb19d52 [2018-11-10 12:46:49,170 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/data/1972e10ca/a542cfb0e2c347d58928fbed409a5a14 [2018-11-10 12:46:49,172 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:46:49,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:46:49,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:46:49,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:46:49,177 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:46:49,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49, skipping insertion in model container [2018-11-10 12:46:49,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:46:49,204 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:46:49,349 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:46:49,353 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:46:49,378 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:46:49,399 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:46:49,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49 WrapperNode [2018-11-10 12:46:49,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:46:49,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:46:49,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:46:49,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:46:49,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:46:49,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:46:49,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:46:49,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:46:49,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... [2018-11-10 12:46:49,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:46:49,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:46:49,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:46:49,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:46:49,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/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 [2018-11-10 12:46:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:46:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:46:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:46:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:46:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-10 12:46:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-10 12:46:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:46:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:46:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-10 12:46:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-10 12:46:49,714 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:46:49,845 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:46:49,853 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:46:49,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:49 BoogieIcfgContainer [2018-11-10 12:46:49,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:46:49,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:46:49,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:46:49,858 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:46:49,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:46:49" (1/3) ... [2018-11-10 12:46:49,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad984a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:46:49, skipping insertion in model container [2018-11-10 12:46:49,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:46:49" (2/3) ... [2018-11-10 12:46:49,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad984a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:46:49, skipping insertion in model container [2018-11-10 12:46:49,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:49" (3/3) ... [2018-11-10 12:46:49,861 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a_true-unreach-call.c [2018-11-10 12:46:49,867 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:46:49,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:46:49,882 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:46:49,900 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:46:49,901 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:46:49,901 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:46:49,901 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:46:49,901 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:46:49,901 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:46:49,901 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:46:49,901 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:46:49,901 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:46:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-10 12:46:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 12:46:49,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:49,916 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:49,917 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:49,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:49,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1066529686, now seen corresponding path program 1 times [2018-11-10 12:46:49,924 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:49,924 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/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 [2018-11-10 12:46:49,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:49,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:49,996 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:50,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:50,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:46:50,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:46:50,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:46:50,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:46:50,019 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-10 12:46:50,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:50,035 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-10 12:46:50,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:46:50,036 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 12:46:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:50,043 INFO L225 Difference]: With dead ends: 68 [2018-11-10 12:46:50,043 INFO L226 Difference]: Without dead ends: 34 [2018-11-10 12:46:50,045 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:46:50,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-10 12:46:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-10 12:46:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-10 12:46:50,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2018-11-10 12:46:50,075 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 18 [2018-11-10 12:46:50,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:50,076 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2018-11-10 12:46:50,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:46:50,076 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2018-11-10 12:46:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 12:46:50,076 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:50,077 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:50,077 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:50,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:50,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1883902620, now seen corresponding path program 1 times [2018-11-10 12:46:50,078 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:50,078 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/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 [2018-11-10 12:46:50,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:50,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:50,304 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:50,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:50,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 12:46:50,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:46:50,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:46:50,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:46:50,319 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 7 states. [2018-11-10 12:46:50,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:50,715 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-11-10 12:46:50,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 12:46:50,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-10 12:46:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:50,718 INFO L225 Difference]: With dead ends: 51 [2018-11-10 12:46:50,718 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 12:46:50,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 12:46:50,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 12:46:50,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 12:46:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 12:46:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-10 12:46:50,723 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2018-11-10 12:46:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:50,723 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-10 12:46:50,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:46:50,724 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-10 12:46:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 12:46:50,724 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:50,725 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:50,725 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:50,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:50,725 INFO L82 PathProgramCache]: Analyzing trace with hash 407428667, now seen corresponding path program 1 times [2018-11-10 12:46:50,726 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:50,726 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/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 [2018-11-10 12:46:50,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:50,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:50,861 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:50,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:50,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 12:46:50,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:46:50,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:46:50,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:46:50,872 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2018-11-10 12:46:51,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:51,281 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-11-10 12:46:51,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 12:46:51,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 12:46:51,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:51,283 INFO L225 Difference]: With dead ends: 53 [2018-11-10 12:46:51,283 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 12:46:51,283 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-10 12:46:51,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 12:46:51,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 12:46:51,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 12:46:51,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-10 12:46:51,288 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 20 [2018-11-10 12:46:51,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:51,289 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-10 12:46:51,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:46:51,289 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-10 12:46:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 12:46:51,289 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:51,289 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:51,290 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:51,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:51,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1907366819, now seen corresponding path program 1 times [2018-11-10 12:46:51,290 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:51,291 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 12:46:51,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:51,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:51,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:51,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:51,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:51,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 12:46:51,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:46:51,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:46:51,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:46:51,432 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 7 states. [2018-11-10 12:46:51,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:51,691 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2018-11-10 12:46:51,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 12:46:51,692 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 12:46:51,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:51,693 INFO L225 Difference]: With dead ends: 50 [2018-11-10 12:46:51,693 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 12:46:51,693 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-10 12:46:51,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 12:46:51,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 12:46:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 12:46:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2018-11-10 12:46:51,697 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2018-11-10 12:46:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:51,697 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2018-11-10 12:46:51,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:46:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2018-11-10 12:46:51,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 12:46:51,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:51,698 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:51,699 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:51,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:51,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1994573467, now seen corresponding path program 1 times [2018-11-10 12:46:51,699 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:51,699 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 12:46:51,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:51,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:51,823 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:51,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:51,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 12:46:51,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 12:46:51,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 12:46:51,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 12:46:51,836 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 7 states. [2018-11-10 12:46:51,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:51,946 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-11-10 12:46:51,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 12:46:51,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-10 12:46:51,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:51,947 INFO L225 Difference]: With dead ends: 35 [2018-11-10 12:46:51,947 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 12:46:51,948 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-10 12:46:51,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 12:46:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 12:46:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 12:46:51,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2018-11-10 12:46:51,952 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 23 [2018-11-10 12:46:51,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:51,953 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2018-11-10 12:46:51,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 12:46:51,953 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2018-11-10 12:46:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 12:46:51,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:46:51,954 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:46:51,954 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:46:51,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:46:51,954 INFO L82 PathProgramCache]: Analyzing trace with hash -123559228, now seen corresponding path program 1 times [2018-11-10 12:46:51,955 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:46:51,955 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 12:46:51,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:46:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:46:52,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:46:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:46:52,398 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:46:52,407 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:46:52,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-10 12:46:52,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 12:46:52,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 12:46:52,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-10 12:46:52,408 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 15 states. [2018-11-10 12:46:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:46:53,139 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2018-11-10 12:46:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 12:46:53,139 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-11-10 12:46:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:46:53,140 INFO L225 Difference]: With dead ends: 32 [2018-11-10 12:46:53,140 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:46:53,141 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2018-11-10 12:46:53,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:46:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:46:53,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:46:53,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:46:53,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-10 12:46:53,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:46:53,142 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:46:53,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 12:46:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:46:53,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:46:53,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:46:53,215 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L428 ceAbstractionStarter]: At program point round_floatENTRY(lines 12 53) the Hoare annotation is: true [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 35) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 46) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point round_floatFINAL(lines 12 53) no Hoare annotation was computed. [2018-11-10 12:46:53,216 INFO L425 ceAbstractionStarter]: For program point round_floatEXIT(lines 12 53) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 39) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 51) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L47-2(lines 12 53) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:46:53,217 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:46:53,218 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:46:53,218 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:46:53,218 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-10 12:46:53,218 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 67 85) the Hoare annotation is: true [2018-11-10 12:46:53,218 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 67 85) no Hoare annotation was computed. [2018-11-10 12:46:53,218 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-10 12:46:53,218 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-10 12:46:53,219 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (exists ((v_round_float_~w~0_14 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) v_round_float_~w~0_14) ((_ extract 30 23) v_round_float_~w~0_14) ((_ extract 22 0) v_round_float_~w~0_14))) (= (let ((.cse0 (bvand v_round_float_~w~0_14 (_ bv2147483648 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0)))) [2018-11-10 12:46:53,219 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-10 12:46:53,219 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 67 85) no Hoare annotation was computed. [2018-11-10 12:46:53,219 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-10 12:46:53,219 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-10 12:46:53,219 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-10 12:46:53,219 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 62) no Hoare annotation was computed. [2018-11-10 12:46:53,220 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 55 65) no Hoare annotation was computed. [2018-11-10 12:46:53,220 INFO L421 ceAbstractionStarter]: At program point L58-3(lines 58 62) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-10 12:46:53,220 INFO L425 ceAbstractionStarter]: For program point L58-4(lines 58 62) no Hoare annotation was computed. [2018-11-10 12:46:53,220 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 55 65) the Hoare annotation is: true [2018-11-10 12:46:53,220 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 55 65) no Hoare annotation was computed. [2018-11-10 12:46:53,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:46:53 BoogieIcfgContainer [2018-11-10 12:46:53,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:46:53,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:46:53,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:46:53,231 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:46:53,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:46:49" (3/4) ... [2018-11-10 12:46:53,234 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:46:53,239 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:46:53,239 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-10 12:46:53,239 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:46:53,239 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-10 12:46:53,244 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-11-10 12:46:53,244 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-11-10 12:46:53,244 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 12:46:53,264 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 12:46:53,264 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 12:46:53,288 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_70200e07-6443-4b1e-ba16-aa09847533d3/bin-2019/utaipan/witness.graphml [2018-11-10 12:46:53,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:46:53,289 INFO L168 Benchmark]: Toolchain (without parser) took 4115.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 949.8 MB in the beginning and 867.3 MB in the end (delta: 82.4 MB). Peak memory consumption was 240.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:53,290 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:46:53,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:53,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.38 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:46:53,291 INFO L168 Benchmark]: Boogie Preprocessor took 23.74 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:46:53,291 INFO L168 Benchmark]: RCFGBuilder took 390.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:53,291 INFO L168 Benchmark]: TraceAbstraction took 3374.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.0 MB in the end (delta: 255.0 MB). Peak memory consumption was 255.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:46:53,291 INFO L168 Benchmark]: Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory is still 867.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:46:53,293 INFO L336 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.38 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.74 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 390.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3374.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.0 MB in the end (delta: 255.0 MB). Peak memory consumption was 255.0 MB. Max. memory is 11.5 GB. * Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory is still 867.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 17]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 124 SDslu, 630 SDs, 0 SdLazy, 310 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 46 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 128 ConstructedInterpolants, 35 QuantifiedInterpolants, 22930 SizeOfPredicates, 63 NumberOfNonLiveVariables, 487 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...