./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight_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_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ............................................................................................................................................................................................................................................ 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_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea .............................................................................................................................................................................................................................................................................................................................. 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 07:50:33,772 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:50:33,773 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:50:33,779 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:50:33,779 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:50:33,780 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:50:33,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:50:33,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:50:33,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:50:33,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:50:33,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:50:33,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:50:33,785 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:50:33,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:50:33,786 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:50:33,787 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:50:33,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:50:33,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:50:33,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:50:33,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:50:33,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:50:33,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:50:33,794 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:50:33,794 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:50:33,794 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:50:33,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:50:33,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:50:33,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:50:33,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:50:33,798 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:50:33,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:50:33,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:50:33,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:50:33,798 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:50:33,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:50:33,799 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:50:33,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 07:50:33,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:50:33,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:50:33,810 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:50:33,810 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:50:33,811 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:50:33,811 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:50:33,811 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:50:33,811 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:50:33,811 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:50:33,812 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:50:33,813 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:50:33,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:50:33,813 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:50:33,814 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 07:50:33,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:50:33,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:50:33,814 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_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-10 07:50:33,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:50:33,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:50:33,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:50:33,846 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:50:33,846 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:50:33,847 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:33,882 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/9f3d0e901/91ba0b5dcfb74ff4b524585099608c75/FLAG191959569 [2018-11-10 07:50:34,192 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:50:34,192 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:34,196 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/9f3d0e901/91ba0b5dcfb74ff4b524585099608c75/FLAG191959569 [2018-11-10 07:50:34,207 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/9f3d0e901/91ba0b5dcfb74ff4b524585099608c75 [2018-11-10 07:50:34,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:50:34,211 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:50:34,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:50:34,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:50:34,215 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:50:34,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f638c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34, skipping insertion in model container [2018-11-10 07:50:34,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:50:34,242 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:50:34,341 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:50:34,344 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:50:34,357 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:50:34,365 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:50:34,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34 WrapperNode [2018-11-10 07:50:34,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:50:34,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:50:34,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:50:34,366 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:50:34,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,379 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... [2018-11-10 07:50:34,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:50:34,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:50:34,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:50:34,385 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:50:34,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 07:50:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:50:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:50:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:50:34,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:50:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:50:34,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 07:50:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:50:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:50:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:50:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:50:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:50:34,544 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:50:34,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:34 BoogieIcfgContainer [2018-11-10 07:50:34,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:50:34,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:50:34,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:50:34,547 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:50:34,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:50:34" (1/3) ... [2018-11-10 07:50:34,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7751eb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:50:34, skipping insertion in model container [2018-11-10 07:50:34,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:34" (2/3) ... [2018-11-10 07:50:34,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7751eb5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:50:34, skipping insertion in model container [2018-11-10 07:50:34,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:34" (3/3) ... [2018-11-10 07:50:34,549 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:34,555 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:50:34,560 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:50:34,573 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:50:34,594 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:50:34,594 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:50:34,595 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:50:34,595 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:50:34,595 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:50:34,595 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:50:34,595 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:50:34,595 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:50:34,595 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:50:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 07:50:34,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:50:34,611 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:50:34,612 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:50:34,613 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:50:34,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:50:34,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 07:50:34,618 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 07:50:34,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 07:50:34,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:50:34,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:50:34,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:50:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:50:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:50:34,690 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:50:34,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:50:34 BoogieIcfgContainer [2018-11-10 07:50:34,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:50:34,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:50:34,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:50:34,703 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:50:34,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:34" (3/4) ... [2018-11-10 07:50:34,706 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:50:34,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:50:34,706 INFO L168 Benchmark]: Toolchain (without parser) took 496.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -154.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:50:34,708 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:50:34,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.32 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:50:34,708 INFO L168 Benchmark]: Boogie Preprocessor took 18.62 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:50:34,709 INFO L168 Benchmark]: RCFGBuilder took 159.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:50:34,709 INFO L168 Benchmark]: TraceAbstraction took 157.93 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:50:34,710 INFO L168 Benchmark]: Witness Printer took 2.96 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 07:50:34,711 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.32 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.62 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 159.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -175.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 157.93 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.96 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 4.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 07:50:36,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:50:36,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:50:36,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:50:36,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:50:36,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:50:36,101 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:50:36,102 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:50:36,103 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:50:36,104 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:50:36,104 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:50:36,104 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:50:36,105 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:50:36,106 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:50:36,107 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:50:36,107 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:50:36,108 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:50:36,109 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:50:36,110 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:50:36,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:50:36,112 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:50:36,113 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:50:36,114 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:50:36,114 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:50:36,115 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:50:36,115 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:50:36,116 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:50:36,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:50:36,117 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:50:36,118 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:50:36,118 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:50:36,119 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:50:36,119 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:50:36,119 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:50:36,119 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:50:36,120 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:50:36,120 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 07:50:36,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:50:36,131 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:50:36,131 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:50:36,131 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:50:36,132 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:50:36,132 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:50:36,132 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 07:50:36,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:50:36,133 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:50:36,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:50:36,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:50:36,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:50:36,135 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:50:36,136 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:50:36,136 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_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-10 07:50:36,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:50:36,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:50:36,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:50:36,178 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:50:36,178 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:50:36,179 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:36,223 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/00a0f7bc5/697188a4f4a042ad981caef6929189a2/FLAG955a9eb00 [2018-11-10 07:50:36,541 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:50:36,541 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:36,545 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/00a0f7bc5/697188a4f4a042ad981caef6929189a2/FLAG955a9eb00 [2018-11-10 07:50:36,553 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/data/00a0f7bc5/697188a4f4a042ad981caef6929189a2 [2018-11-10 07:50:36,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:50:36,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 07:50:36,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:50:36,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:50:36,560 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:50:36,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248f829a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36, skipping insertion in model container [2018-11-10 07:50:36,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:50:36,581 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:50:36,685 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:50:36,689 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:50:36,699 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:50:36,708 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:50:36,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36 WrapperNode [2018-11-10 07:50:36,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:50:36,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:50:36,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:50:36,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:50:36,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... [2018-11-10 07:50:36,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:50:36,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:50:36,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:50:36,729 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:50:36,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 07:50:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:50:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:50:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:50:36,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:50:36,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:50:39,940 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:50:39,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:39 BoogieIcfgContainer [2018-11-10 07:50:39,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:50:39,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:50:39,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:50:39,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:50:39,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:50:36" (1/3) ... [2018-11-10 07:50:39,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66676cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:50:39, skipping insertion in model container [2018-11-10 07:50:39,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:50:36" (2/3) ... [2018-11-10 07:50:39,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66676cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:50:39, skipping insertion in model container [2018-11-10 07:50:39,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:39" (3/3) ... [2018-11-10 07:50:39,945 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-10 07:50:39,951 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:50:39,957 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:50:39,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:50:39,988 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:50:39,989 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:50:39,989 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:50:39,989 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:50:39,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:50:39,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:50:39,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:50:39,990 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:50:39,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:50:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-10 07:50:40,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:50:40,004 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:50:40,005 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:50:40,006 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:50:40,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:50:40,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-10 07:50:40,012 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:50:40,012 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 07:50:40,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:50:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:50:40,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:50:42,672 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from false [2018-11-10 07:50:44,832 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from true [2018-11-10 07:51:01,955 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse2) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse2) ((_ to_fp 11 53) RNE 4.0))))))))) is different from false [2018-11-10 07:51:13,068 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse1) ((_ to_fp 11 53) RNE 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (_ +zero 11 53)))))))) is different from false [2018-11-10 07:51:24,194 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from false [2018-11-10 07:51:26,385 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from true [2018-11-10 07:51:26,388 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 07:51:26,388 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:51:26,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:51:26,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 07:51:26,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:51:26,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:51:26,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-10 07:51:26,421 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-10 07:51:39,055 WARN L179 SmtUtils]: Spent 6.61 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-10 07:51:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:51:41,402 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-10 07:51:41,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 07:51:41,580 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-10 07:51:41,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:51:41,586 INFO L225 Difference]: With dead ends: 33 [2018-11-10 07:51:41,587 INFO L226 Difference]: Without dead ends: 11 [2018-11-10 07:51:41,589 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=14, Invalid=7, Unknown=7, NotChecked=28, Total=56 [2018-11-10 07:51:41,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-10 07:51:41,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 07:51:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 07:51:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-10 07:51:41,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-11-10 07:51:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:51:41,611 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-10 07:51:41,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:51:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-10 07:51:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 07:51:41,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:51:41,612 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:51:41,613 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:51:41,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:51:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-11-10 07:51:41,613 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:51:41,613 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/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 07:51:41,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:51:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:51:42,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:51:44,099 WARN L832 $PredicateComparison]: unable to prove that (and (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (= (fp.sub RNE (fp.mul RNE c_main_~x~0 c_main_~x~0) c_main_~x~0) c_main_~y~0) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-11-10 07:51:46,147 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from false [2018-11-10 07:51:48,188 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from true [2018-11-10 07:52:04,624 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) .cse1) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))))) (and .cse1 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse4 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))))) is different from false [2018-11-10 07:52:19,023 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse4 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))))) is different from false [2018-11-10 07:52:29,294 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) is different from false [2018-11-10 07:52:31,333 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) is different from true [2018-11-10 07:52:31,334 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 07:52:31,334 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:52:31,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:52:31,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 07:52:31,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 07:52:31,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 07:52:31,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-11-10 07:52:31,345 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-11-10 07:52:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:52:31,349 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-10 07:52:31,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 07:52:31,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-10 07:52:31,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:52:31,349 INFO L225 Difference]: With dead ends: 11 [2018-11-10 07:52:31,349 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:52:31,350 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-11-10 07:52:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:52:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:52:31,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:52:31,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:52:31,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-10 07:52:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:52:31,351 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:52:31,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 07:52:31,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:52:31,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:52:31,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:52:52,730 WARN L179 SmtUtils]: Spent 21.34 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-10 07:52:59,703 WARN L179 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 101 DAG size of output: 1 [2018-11-10 07:52:59,704 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:52:59,704 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:52:59,705 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:52:59,705 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:52:59,705 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:52:59,705 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:52:59,705 INFO L421 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) main_~y~0)))) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse1 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) [2018-11-10 07:52:59,706 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-10 07:52:59,706 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-11-10 07:52:59,706 INFO L425 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-10 07:52:59,707 INFO L425 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-10 07:52:59,707 INFO L425 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-10 07:52:59,707 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-10 07:52:59,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:52:59 BoogieIcfgContainer [2018-11-10 07:52:59,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:52:59,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:52:59,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:52:59,710 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:52:59,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:50:39" (3/4) ... [2018-11-10 07:52:59,712 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:52:59,716 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:52:59,717 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:52:59,717 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 07:52:59,719 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 07:52:59,719 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:52:59,719 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:52:59,741 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8fc9b080-3a6d-4531-b50d-50c5bc06fc4b/bin-2019/uautomizer/witness.graphml [2018-11-10 07:52:59,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:52:59,742 INFO L168 Benchmark]: Toolchain (without parser) took 143186.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -108.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:59,742 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 07:52:59,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:59,743 INFO L168 Benchmark]: Boogie Preprocessor took 19.59 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 07:52:59,743 INFO L168 Benchmark]: RCFGBuilder took 3211.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:59,744 INFO L168 Benchmark]: TraceAbstraction took 139768.30 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:59,744 INFO L168 Benchmark]: Witness Printer took 32.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 07:52:59,746 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 152.66 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.59 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 3211.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139768.30 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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, 18 locations, 1 error locations. SAFE Result, 139.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 15.1s AutomataDifference, 0.0s DeadEndRemovalTime, 28.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 3 SDslu, 58 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 66 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 28.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 95.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...