./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_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_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................................................... 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_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ....................................................................................................................................................................................................................................................................................................................................................................................... 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 12:59:02,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:59:02,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:59:02,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:59:02,558 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:59:02,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:59:02,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:59:02,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:59:02,562 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:59:02,562 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:59:02,563 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:59:02,563 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:59:02,564 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:59:02,565 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:59:02,565 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:59:02,566 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:59:02,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:59:02,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:59:02,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:59:02,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:59:02,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:59:02,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:59:02,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:59:02,573 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:59:02,573 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:59:02,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:59:02,574 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:59:02,575 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:59:02,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:59:02,576 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:59:02,576 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:59:02,577 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:59:02,577 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:59:02,577 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:59:02,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:59:02,578 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:59:02,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 12:59:02,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:59:02,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:59:02,586 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:59:02,586 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:59:02,587 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:59:02,587 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:59:02,587 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:59:02,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:59:02,587 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:59:02,588 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:59:02,589 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:59:02,589 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:59:02,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:59:02,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:59:02,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:59:02,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:59:02,590 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:59:02,590 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 12:59:02,591 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_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2018-11-10 12:59:02,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:59:02,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:59:02,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:59:02,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:59:02,622 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:59:02,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:02,665 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/ce16ca6c7/1e7d5eabe79c45e5a4eb0c2a167e8a52/FLAGb1b0dcaf5 [2018-11-10 12:59:03,049 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:59:03,049 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:03,053 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/ce16ca6c7/1e7d5eabe79c45e5a4eb0c2a167e8a52/FLAGb1b0dcaf5 [2018-11-10 12:59:03,061 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/ce16ca6c7/1e7d5eabe79c45e5a4eb0c2a167e8a52 [2018-11-10 12:59:03,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:59:03,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:59:03,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:59:03,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:59:03,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:59:03,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbb7dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03, skipping insertion in model container [2018-11-10 12:59:03,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:59:03,087 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:59:03,188 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:59:03,190 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:59:03,201 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:59:03,215 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:59:03,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03 WrapperNode [2018-11-10 12:59:03,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:59:03,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:59:03,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:59:03,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:59:03,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... [2018-11-10 12:59:03,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:59:03,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:59:03,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:59:03,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:59:03,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:59:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:59:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:59:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 12:59:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-10 12:59:03,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:59:03,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 12:59:03,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 12:59:03,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-10 12:59:03,488 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:59:03,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:03 BoogieIcfgContainer [2018-11-10 12:59:03,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:59:03,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:59:03,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:59:03,491 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:59:03,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:59:03" (1/3) ... [2018-11-10 12:59:03,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aecfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:59:03, skipping insertion in model container [2018-11-10 12:59:03,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:03" (2/3) ... [2018-11-10 12:59:03,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54aecfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:59:03, skipping insertion in model container [2018-11-10 12:59:03,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:03" (3/3) ... [2018-11-10 12:59:03,494 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:03,502 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:59:03,508 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:59:03,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:59:03,549 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:59:03,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:59:03,550 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:59:03,550 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:59:03,550 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:59:03,550 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:59:03,550 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:59:03,550 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:59:03,550 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:59:03,566 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-10 12:59:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 12:59:03,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:59:03,572 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] [2018-11-10 12:59:03,574 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:59:03,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:59:03,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1618038017, now seen corresponding path program 1 times [2018-11-10 12:59:03,580 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:59:03,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:59:03,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:59:03,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:59:03,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:59:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:59:03,667 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 12:59:03,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:59:03,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:59:03,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:59:03,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:59:03,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:59:03,682 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-10 12:59:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:59:03,701 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2018-11-10 12:59:03,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:59:03,702 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-10 12:59:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:59:03,708 INFO L225 Difference]: With dead ends: 80 [2018-11-10 12:59:03,708 INFO L226 Difference]: Without dead ends: 40 [2018-11-10 12:59:03,711 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 12:59:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-10 12:59:03,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-10 12:59:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 12:59:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 39 transitions. [2018-11-10 12:59:03,734 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 39 transitions. Word has length 21 [2018-11-10 12:59:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:59:03,734 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 39 transitions. [2018-11-10 12:59:03,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:59:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 39 transitions. [2018-11-10 12:59:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-10 12:59:03,735 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:59:03,735 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:59:03,735 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:59:03,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:59:03,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2024070715, now seen corresponding path program 1 times [2018-11-10 12:59:03,736 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:59:03,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:59:03,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:59:03,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:59:03,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:59:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:59:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:59:03,799 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 12:59:03,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:59:03 BoogieIcfgContainer [2018-11-10 12:59:03,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:59:03,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:59:03,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:59:03,817 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:59:03,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:03" (3/4) ... [2018-11-10 12:59:03,820 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:59:03,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:59:03,821 INFO L168 Benchmark]: Toolchain (without parser) took 757.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -120.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:03,822 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:59:03,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:03,823 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:03,824 INFO L168 Benchmark]: RCFGBuilder took 246.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:03,824 INFO L168 Benchmark]: TraceAbstraction took 328.15 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:03,824 INFO L168 Benchmark]: Witness Printer took 3.24 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 12:59:03,827 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.63 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 328.15 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 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: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L36] CALL, EXPR fabs_float(x) VAL [\old(x)=11] [L15] __uint32_t ix; VAL [\old(x)=11, x=11] [L17] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=11, gf_u={6:0}, x=11] [L18] FCALL gf_u.value = (x) VAL [\old(x)=11, gf_u={6:0}, x=11] [L19] EXPR, FCALL gf_u.word VAL [\old(x)=11, gf_u={6:0}, gf_u.word=9, x=11] [L19] (ix) = gf_u.word VAL [(ix) = gf_u.word=10, \old(x)=11, gf_u={6:0}, gf_u.word=9, ix=9, x=11] [L20] COND FALSE !(0) VAL [\old(x)=11, ix=9, x=11] [L22] FCALL ieee_float_shape_type sf_u; VAL [\old(x)=11, ix=9, sf_u={6:0}, x=11] [L23] FCALL sf_u.word = (ix & 0x7fffffff) VAL [\old(x)=11, ix=9, sf_u={6:0}, x=11] [L24] EXPR, FCALL sf_u.value VAL [\old(x)=11, ix=9, sf_u={6:0}, sf_u.value=10, x=11] [L24] (x) = sf_u.value VAL [(x) = sf_u.value=7, \old(x)=11, ix=9, sf_u={6:0}, sf_u.value=10, x=10] [L25] COND FALSE !(0) VAL [\old(x)=11, ix=9, x=10] [L26] RET return x; VAL [\old(x)=11, \result=10, ix=9, x=10] [L36] EXPR fabs_float(x) VAL [fabs_float(x)=10, x=11] [L36] float res = fabs_float(x); [L39] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L12] RET return x != x; VAL [\old(x)=10, \result=0, x=10] [L39] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=11] [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() VAL [res=10, x=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. UNSAFE Result, 0.2s 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=44occurred 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, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 12:59:05,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:59:05,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:59:05,221 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:59:05,221 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:59:05,222 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:59:05,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:59:05,224 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:59:05,225 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:59:05,225 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:59:05,226 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:59:05,226 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:59:05,227 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:59:05,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:59:05,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:59:05,229 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:59:05,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:59:05,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:59:05,232 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:59:05,233 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:59:05,234 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:59:05,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:59:05,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:59:05,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:59:05,236 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:59:05,237 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:59:05,238 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:59:05,238 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:59:05,239 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:59:05,240 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:59:05,240 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:59:05,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:59:05,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:59:05,241 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:59:05,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:59:05,242 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:59:05,242 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 12:59:05,252 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:59:05,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:59:05,253 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 12:59:05,253 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 12:59:05,253 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:59:05,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:59:05,254 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:59:05,254 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:59:05,254 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 12:59:05,254 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 12:59:05,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 12:59:05,255 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:59:05,256 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 12:59:05,256 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:59:05,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:59:05,256 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 12:59:05,256 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 12:59:05,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:59:05,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:59:05,257 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 12:59:05,257 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 12:59:05,257 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 12:59:05,257 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 12:59:05,258 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 12:59:05,258 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 12:59:05,258 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_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2018-11-10 12:59:05,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:59:05,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:59:05,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:59:05,301 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:59:05,301 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:59:05,302 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:05,346 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/72197cb07/aad853b4363944b49dc697760b6e7efd/FLAG3dc88e4b0 [2018-11-10 12:59:05,640 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:59:05,640 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:05,644 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/72197cb07/aad853b4363944b49dc697760b6e7efd/FLAG3dc88e4b0 [2018-11-10 12:59:05,652 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/data/72197cb07/aad853b4363944b49dc697760b6e7efd [2018-11-10 12:59:05,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:59:05,654 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 12:59:05,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:59:05,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:59:05,657 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:59:05,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ce2837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05, skipping insertion in model container [2018-11-10 12:59:05,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:59:05,677 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:59:05,779 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:59:05,782 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:59:05,795 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:59:05,812 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:59:05,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05 WrapperNode [2018-11-10 12:59:05,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:59:05,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:59:05,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:59:05,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:59:05,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... [2018-11-10 12:59:05,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:59:05,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:59:05,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:59:05,841 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:59:05,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 12:59:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 12:59:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:59:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 12:59:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-10 12:59:05,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 12:59:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 12:59:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:59:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-10 12:59:05,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-10 12:59:06,048 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:59:06,054 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 12:59:06,088 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:59:06,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:06 BoogieIcfgContainer [2018-11-10 12:59:06,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:59:06,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 12:59:06,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 12:59:06,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 12:59:06,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:59:05" (1/3) ... [2018-11-10 12:59:06,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1653515d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:59:06, skipping insertion in model container [2018-11-10 12:59:06,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:59:05" (2/3) ... [2018-11-10 12:59:06,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1653515d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:59:06, skipping insertion in model container [2018-11-10 12:59:06,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:06" (3/3) ... [2018-11-10 12:59:06,094 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010_true-unreach-call.c [2018-11-10 12:59:06,100 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 12:59:06,104 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 12:59:06,113 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 12:59:06,134 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:59:06,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 12:59:06,135 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 12:59:06,135 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 12:59:06,135 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:59:06,135 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:59:06,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 12:59:06,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:59:06,135 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 12:59:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-10 12:59:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 12:59:06,148 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:59:06,149 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 12:59:06,150 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:59:06,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:59:06,153 INFO L82 PathProgramCache]: Analyzing trace with hash 417414279, now seen corresponding path program 1 times [2018-11-10 12:59:06,156 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:59:06,156 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 12:59:06,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:59:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:59:06,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:59:06,208 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 12:59:06,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:59:06,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:59:06,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 12:59:06,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 12:59:06,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 12:59:06,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 12:59:06,227 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-10 12:59:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:59:06,243 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2018-11-10 12:59:06,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 12:59:06,244 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-10 12:59:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:59:06,250 INFO L225 Difference]: With dead ends: 78 [2018-11-10 12:59:06,251 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 12:59:06,253 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 12:59:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 12:59:06,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-10 12:59:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-10 12:59:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions. [2018-11-10 12:59:06,278 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 20 [2018-11-10 12:59:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:59:06,278 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions. [2018-11-10 12:59:06,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 12:59:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions. [2018-11-10 12:59:06,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 12:59:06,279 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 12:59:06,279 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 12:59:06,280 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 12:59:06,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:59:06,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1999044579, now seen corresponding path program 1 times [2018-11-10 12:59:06,280 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 12:59:06,280 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 12:59:06,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:59:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:59:06,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:59:06,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 12:59:06,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 12:59:06,402 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,406 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,430 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,430 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-11-10 12:59:06,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-11-10 12:59:06,450 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-11-10 12:59:06,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,453 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,455 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,455 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-11-10 12:59:06,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-11-10 12:59:06,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-10 12:59:06,512 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,522 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 12:59:06,522 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:19 [2018-11-10 12:59:06,555 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2018-11-10 12:59:06,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2018-11-10 12:59:06,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,563 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 12:59:06,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 12:59:06,571 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:40, output treesize:25 [2018-11-10 12:59:06,899 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 12:59:06,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 12:59:06,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 12:59:06,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-10 12:59:06,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 12:59:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 12:59:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-10 12:59:06,912 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand 15 states. [2018-11-10 12:59:07,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 12:59:07,816 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2018-11-10 12:59:07,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-10 12:59:07,816 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2018-11-10 12:59:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 12:59:07,817 INFO L225 Difference]: With dead ends: 39 [2018-11-10 12:59:07,817 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 12:59:07,818 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2018-11-10 12:59:07,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 12:59:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 12:59:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 12:59:07,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 12:59:07,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-10 12:59:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 12:59:07,819 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:59:07,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 12:59:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:59:07,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 12:59:07,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 12:59:07,886 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 12) no Hoare annotation was computed. [2018-11-10 12:59:07,886 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 12) the Hoare annotation is: true [2018-11-10 12:59:07,886 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 12) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-10 12:59:07,887 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 14 27) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L17-2(line 17) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L17-3(line 17) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-10 12:59:07,888 INFO L425 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L22-3(line 22) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 12:59:07,889 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-11-10 12:59:07,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 12:59:07,890 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 12:59:07,890 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 12:59:07,890 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 12:59:07,890 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 29 45) the Hoare annotation is: true [2018-11-10 12:59:07,890 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 29 45) no Hoare annotation was computed. [2018-11-10 12:59:07,890 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 29 45) no Hoare annotation was computed. [2018-11-10 12:59:07,890 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-10 12:59:07,890 INFO L421 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0))) (= main_~res~0 (let ((.cse0 (bvand fabs_float_~ix~0 (_ bv2147483647 32)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2018-11-10 12:59:07,891 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 42) no Hoare annotation was computed. [2018-11-10 12:59:07,891 INFO L421 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-11-10 12:59:07,891 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2018-11-10 12:59:07,891 INFO L425 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-10 12:59:07,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 12:59:07 BoogieIcfgContainer [2018-11-10 12:59:07,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 12:59:07,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:59:07,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:59:07,901 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:59:07,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:59:06" (3/4) ... [2018-11-10 12:59:07,904 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 12:59:07,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 12:59:07,910 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 12:59:07,910 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-10 12:59:07,910 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 12:59:07,914 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-10 12:59:07,914 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 12:59:07,914 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 12:59:07,935 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 12:59:07,948 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_95da66d4-6e9a-41b1-98c9-dd1ddd42f8dd/bin-2019/uautomizer/witness.graphml [2018-11-10 12:59:07,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:59:07,949 INFO L168 Benchmark]: Toolchain (without parser) took 2294.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 950.6 MB in the beginning and 970.5 MB in the end (delta: -19.9 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,950 INFO L168 Benchmark]: CDTParser took 0.14 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 12:59:07,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,950 INFO L168 Benchmark]: Boogie Preprocessor took 27.11 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,951 INFO L168 Benchmark]: RCFGBuilder took 248.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -205.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,951 INFO L168 Benchmark]: TraceAbstraction took 1811.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,952 INFO L168 Benchmark]: Witness Printer took 47.08 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 970.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:59:07,954 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 158.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.11 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 248.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -205.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1811.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 163.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.08 ms. Allocated memory is still 1.2 GB. Free memory was 977.2 MB in the beginning and 970.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 25 SDslu, 259 SDs, 0 SdLazy, 156 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 51 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 56 ConstructedInterpolants, 12 QuantifiedInterpolants, 17973 SizeOfPredicates, 14 NumberOfNonLiveVariables, 118 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...