./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.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_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ............................................................................................................................................................................................................................................ 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_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ................................................................................................................................................................................................................................................................................... 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 13:25:20,559 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:25:20,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:25:20,568 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:25:20,568 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:25:20,569 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:25:20,569 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:25:20,571 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:25:20,572 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:25:20,572 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:25:20,573 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:25:20,573 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:25:20,574 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:25:20,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:25:20,575 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:25:20,576 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:25:20,576 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:25:20,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:25:20,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:25:20,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:25:20,580 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:25:20,581 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:25:20,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:25:20,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:25:20,582 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:25:20,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:25:20,583 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:25:20,584 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:25:20,585 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:25:20,585 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:25:20,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:25:20,586 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:25:20,586 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:25:20,586 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:25:20,587 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:25:20,587 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:25:20,587 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:25:20,594 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:25:20,594 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:25:20,595 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:25:20,595 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:25:20,595 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:25:20,595 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:25:20,595 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:25:20,595 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:25:20,595 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:25:20,596 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:25:20,596 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:25:20,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:25:20,596 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:25:20,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:25:20,597 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:25:20,598 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:25:20,598 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:25:20,598 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:25:20,598 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:25:20,598 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:25:20,598 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:25:20,598 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:25:20,599 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:25:20,599 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_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-10 13:25:20,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:25:20,631 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:25:20,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:25:20,635 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:25:20,636 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:25:20,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:20,671 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/347196ee5/e176cfecb47a41788be581225897d9da/FLAG4d87bc6b0 [2018-11-10 13:25:21,062 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:25:21,062 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:21,066 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/347196ee5/e176cfecb47a41788be581225897d9da/FLAG4d87bc6b0 [2018-11-10 13:25:21,075 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/347196ee5/e176cfecb47a41788be581225897d9da [2018-11-10 13:25:21,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:25:21,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:25:21,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:25:21,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:25:21,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:25:21,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21, skipping insertion in model container [2018-11-10 13:25:21,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:25:21,101 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:25:21,194 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:25:21,197 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:25:21,206 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:25:21,214 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:25:21,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21 WrapperNode [2018-11-10 13:25:21,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:25:21,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:25:21,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:25:21,215 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:25:21,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:25:21,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:25:21,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:25:21,227 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:25:21,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... [2018-11-10 13:25:21,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:25:21,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:25:21,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:25:21,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:25:21,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 13:25:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:25:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:25:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:25:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:25:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:25:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:25:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:25:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:25:21,412 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:25:21,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:21 BoogieIcfgContainer [2018-11-10 13:25:21,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:25:21,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:25:21,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:25:21,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:25:21,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:25:21" (1/3) ... [2018-11-10 13:25:21,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c08fb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:25:21, skipping insertion in model container [2018-11-10 13:25:21,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:21" (2/3) ... [2018-11-10 13:25:21,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c08fb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:25:21, skipping insertion in model container [2018-11-10 13:25:21,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:21" (3/3) ... [2018-11-10 13:25:21,419 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:21,427 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:25:21,433 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:25:21,447 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:25:21,473 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:25:21,473 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:25:21,473 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:25:21,473 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:25:21,474 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:25:21,474 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:25:21,474 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:25:21,474 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:25:21,488 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 13:25:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:25:21,493 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:25:21,494 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:25:21,495 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:25:21,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:25:21,500 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-10 13:25:21,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:25:21,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:25:21,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:25:21,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:25:21,543 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:25:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:25:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:25:21,587 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:25:21,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:25:21 BoogieIcfgContainer [2018-11-10 13:25:21,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:25:21,601 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:25:21,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:25:21,602 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:25:21,602 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:21" (3/4) ... [2018-11-10 13:25:21,606 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:25:21,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:25:21,606 INFO L168 Benchmark]: Toolchain (without parser) took 528.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:25:21,608 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:25:21,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.56 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:21,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:25:21,610 INFO L168 Benchmark]: Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:21,610 INFO L168 Benchmark]: RCFGBuilder took 175.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -212.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:21,611 INFO L168 Benchmark]: TraceAbstraction took 188.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:21,611 INFO L168 Benchmark]: Witness Printer took 4.39 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 13:25:21,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.56 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.34 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -212.0 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 188.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z VAL [x=10000000] [L14] CALL __VERIFIER_assert(r == 2.f) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 13:25:23,043 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:25:23,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:25:23,053 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:25:23,053 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:25:23,054 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:25:23,055 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:25:23,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:25:23,057 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:25:23,058 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:25:23,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:25:23,059 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:25:23,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:25:23,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:25:23,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:25:23,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:25:23,062 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:25:23,063 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:25:23,064 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:25:23,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:25:23,067 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:25:23,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:25:23,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:25:23,070 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:25:23,070 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:25:23,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:25:23,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:25:23,072 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:25:23,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:25:23,074 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:25:23,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:25:23,075 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:25:23,075 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:25:23,075 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:25:23,076 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:25:23,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:25:23,077 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:25:23,088 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:25:23,088 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:25:23,088 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:25:23,088 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:25:23,089 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:25:23,089 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:25:23,089 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:25:23,090 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:25:23,090 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:25:23,090 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:25:23,090 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:25:23,091 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:25:23,092 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:25:23,092 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:25:23,092 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:25:23,092 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:25:23,092 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:25:23,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:25:23,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:25:23,094 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:25:23,094 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:25:23,095 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:25:23,095 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:25:23,095 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:25:23,095 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:25:23,095 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_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-10 13:25:23,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:25:23,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:25:23,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:25:23,141 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:25:23,141 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:25:23,142 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:23,186 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/9d8d120ec/4849079a94dd459c9206d6947f8142b9/FLAGf86bdc26a [2018-11-10 13:25:23,482 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:25:23,482 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:23,486 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/9d8d120ec/4849079a94dd459c9206d6947f8142b9/FLAGf86bdc26a [2018-11-10 13:25:23,494 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/data/9d8d120ec/4849079a94dd459c9206d6947f8142b9 [2018-11-10 13:25:23,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:25:23,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:25:23,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:25:23,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:25:23,499 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:25:23,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ff5fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23, skipping insertion in model container [2018-11-10 13:25:23,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:25:23,519 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:25:23,616 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:25:23,620 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:25:23,629 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:25:23,638 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:25:23,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23 WrapperNode [2018-11-10 13:25:23,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:25:23,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:25:23,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:25:23,639 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:25:23,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:25:23,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:25:23,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:25:23,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:25:23,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... [2018-11-10 13:25:23,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:25:23,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:25:23,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:25:23,664 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:25:23,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 13:25:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:25:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:25:23,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:25:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:25:23,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:25:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:25:23,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:25:23,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:25:23,894 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:25:23,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:23 BoogieIcfgContainer [2018-11-10 13:25:23,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:25:23,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:25:23,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:25:23,897 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:25:23,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:25:23" (1/3) ... [2018-11-10 13:25:23,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567dcad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:25:23, skipping insertion in model container [2018-11-10 13:25:23,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:25:23" (2/3) ... [2018-11-10 13:25:23,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@567dcad6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:25:23, skipping insertion in model container [2018-11-10 13:25:23,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:23" (3/3) ... [2018-11-10 13:25:23,900 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-10 13:25:23,908 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:25:23,912 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:25:23,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:25:23,941 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:25:23,941 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:25:23,941 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:25:23,941 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:25:23,941 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:25:23,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:25:23,942 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:25:23,942 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:25:23,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:25:23,951 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 13:25:23,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:25:23,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:25:23,956 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:25:23,958 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:25:23,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:25:23,962 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-10 13:25:23,966 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:25:23,966 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/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 13:25:23,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:25:24,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:25:24,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:25:24,120 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 13:25:24,120 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:25:24,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:25:24,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:25:24,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:25:24,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:25:24,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:25:24,143 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-10 13:25:24,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:25:24,188 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-10 13:25:24,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:25:24,189 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-10 13:25:24,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:25:24,195 INFO L225 Difference]: With dead ends: 24 [2018-11-10 13:25:24,195 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:25:24,198 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:25:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:25:24,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:25:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:25:24,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:25:24,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-10 13:25:24,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:25:24,216 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:25:24,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:25:24,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:25:24,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:25:24,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:25:24,254 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:25:24,254 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:25:24,254 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:25:24,255 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:25:24,255 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:25:24,255 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:25:24,255 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 8 24) RNE 10000000.0)) (.cse1 ((_ to_fp 8 24) RNE 1.0))) (fp.sub RNE (fp.add RNE .cse0 .cse1) (fp.sub RNE .cse0 .cse1))) main_~r~0) [2018-11-10 13:25:24,255 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-10 13:25:24,255 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-10 13:25:24,255 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-10 13:25:24,256 INFO L425 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-10 13:25:24,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:25:24 BoogieIcfgContainer [2018-11-10 13:25:24,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:25:24,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:25:24,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:25:24,260 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:25:24,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:25:23" (3/4) ... [2018-11-10 13:25:24,264 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:25:24,269 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:25:24,270 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:25:24,270 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 13:25:24,273 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 13:25:24,273 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:25:24,274 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:25:24,274 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:25:24,297 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fb3298c5-02d3-4884-9fe6-ca992b4d6c27/bin-2019/utaipan/witness.graphml [2018-11-10 13:25:24,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:25:24,298 INFO L168 Benchmark]: Toolchain (without parser) took 801.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:24,299 INFO L168 Benchmark]: CDTParser took 0.15 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 13:25:24,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.46 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:24,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.20 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:25:24,300 INFO L168 Benchmark]: Boogie Preprocessor took 11.82 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:24,300 INFO L168 Benchmark]: RCFGBuilder took 230.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:24,300 INFO L168 Benchmark]: TraceAbstraction took 363.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:25:24,301 INFO L168 Benchmark]: Witness Printer took 38.15 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 13:25:24,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 141.46 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 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 13.20 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.82 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 230.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -203.5 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 363.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * Witness Printer took 38.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...