./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/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 30af8e98893bfcc9c7b0879f6e0cde9a5cbf7714 ............................................................................................................................................................................................................................... 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_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/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 30af8e98893bfcc9c7b0879f6e0cde9a5cbf7714 ................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:57:56,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:57:56,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:57:56,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:57:56,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:57:56,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:57:56,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:57:56,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:57:56,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:57:56,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:57:56,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:57:56,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:57:56,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:57:56,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:57:56,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:57:56,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:57:56,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:57:56,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:57:56,789 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:57:56,790 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:57:56,791 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:57:56,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:57:56,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:57:56,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:57:56,793 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:57:56,794 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:57:56,795 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:57:56,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:57:56,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:57:56,796 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:57:56,796 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:57:56,797 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:57:56,797 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:57:56,797 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:57:56,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:57:56,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:57:56,799 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:57:56,806 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:57:56,806 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:57:56,807 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:57:56,807 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:57:56,807 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:57:56,808 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:57:56,808 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:57:56,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:57:56,808 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:57:56,808 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:57:56,808 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:57:56,809 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:57:56,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:57:56,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:57:56,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:57:56,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:57:56,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:57:56,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:57:56,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:57:56,811 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:57:56,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:57:56,811 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:57:56,811 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:57:56,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:57:56,811 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_3a54347f-1d91-46d3-a940-0c6d051c453e/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 -> 30af8e98893bfcc9c7b0879f6e0cde9a5cbf7714 [2018-11-28 12:57:56,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:57:56,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:57:56,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:57:56,849 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:57:56,849 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:57:56,850 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i [2018-11-28 12:57:56,890 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/bc009b4c3/cc00e751362f4971bbb46a02374bb3de/FLAGb04a9a9e2 [2018-11-28 12:57:57,180 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:57:57,181 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i [2018-11-28 12:57:57,184 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/bc009b4c3/cc00e751362f4971bbb46a02374bb3de/FLAGb04a9a9e2 [2018-11-28 12:57:57,192 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/bc009b4c3/cc00e751362f4971bbb46a02374bb3de [2018-11-28 12:57:57,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:57:57,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:57:57,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:57:57,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:57:57,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:57:57,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11bafc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57, skipping insertion in model container [2018-11-28 12:57:57,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:57:57,217 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:57:57,320 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:57:57,324 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:57:57,335 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:57:57,345 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:57:57,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57 WrapperNode [2018-11-28 12:57:57,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:57:57,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:57:57,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:57:57,346 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:57:57,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:57:57,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:57:57,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:57:57,364 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:57:57,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... [2018-11-28 12:57:57,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:57:57,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:57:57,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:57:57,380 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:57:57,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/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 [2018-11-28 12:57:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:57:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:57:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:57:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:57:57,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:57:57,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:57:57,549 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:57:57,550 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:57:57,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:57:57 BoogieIcfgContainer [2018-11-28 12:57:57,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:57:57,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:57:57,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:57:57,553 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:57:57,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:57:57" (1/3) ... [2018-11-28 12:57:57,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42792eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:57:57, skipping insertion in model container [2018-11-28 12:57:57,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:57:57" (2/3) ... [2018-11-28 12:57:57,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42792eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:57:57, skipping insertion in model container [2018-11-28 12:57:57,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:57:57" (3/3) ... [2018-11-28 12:57:57,555 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2_false-unreach-call_true-termination.i [2018-11-28 12:57:57,561 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:57:57,566 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:57:57,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:57:57,597 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:57:57,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:57:57,598 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:57:57,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:57:57,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:57:57,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:57:57,599 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:57:57,599 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:57:57,599 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:57:57,611 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-28 12:57:57,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:57:57,615 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:57:57,616 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:57:57,618 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:57:57,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:57:57,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-28 12:57:57,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:57:57,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:57:57,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:57:57,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:57:57,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:57:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:57:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:57:57,696 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:57:57,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:57:57 BoogieIcfgContainer [2018-11-28 12:57:57,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:57:57,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:57:57,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:57:57,713 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:57:57,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:57:57" (3/4) ... [2018-11-28 12:57:57,716 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:57:57,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:57:57,717 INFO L168 Benchmark]: Toolchain (without parser) took 522.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:57:57,719 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:57:57,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.05 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:57:57,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:57:57,720 INFO L168 Benchmark]: Boogie Preprocessor took 15.90 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:57:57,721 INFO L168 Benchmark]: RCFGBuilder took 170.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:57:57,722 INFO L168 Benchmark]: TraceAbstraction took 162.00 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:57:57,723 INFO L168 Benchmark]: Witness Printer took 3.78 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. [2018-11-28 12:57:57,726 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.05 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.88 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.90 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 943.6 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 162.00 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: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.78 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 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=13occurred 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, 7 NumberOfCodeBlocks, 7 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 0.1.23-0cd3be1 [2018-11-28 12:57:59,146 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:57:59,148 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:57:59,156 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:57:59,156 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:57:59,157 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:57:59,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:57:59,159 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:57:59,160 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:57:59,161 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:57:59,162 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:57:59,162 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:57:59,163 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:57:59,164 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:57:59,165 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:57:59,165 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:57:59,166 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:57:59,167 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:57:59,168 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:57:59,169 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:57:59,170 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:57:59,171 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:57:59,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:57:59,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:57:59,173 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:57:59,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:57:59,175 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:57:59,176 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:57:59,176 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:57:59,177 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:57:59,177 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:57:59,178 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:57:59,178 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:57:59,178 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:57:59,179 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:57:59,180 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:57:59,180 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:57:59,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:57:59,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:57:59,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:57:59,191 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:57:59,192 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:57:59,192 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:57:59,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:57:59,193 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:57:59,194 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:57:59,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:57:59,195 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:57:59,195 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:57:59,195 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:57:59,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:57:59,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:57:59,195 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:57:59,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:57:59,196 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:57:59,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:57:59,196 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:57:59,196 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:57:59,196 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_3a54347f-1d91-46d3-a940-0c6d051c453e/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 -> 30af8e98893bfcc9c7b0879f6e0cde9a5cbf7714 [2018-11-28 12:57:59,226 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:57:59,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:57:59,238 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:57:59,239 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:57:59,240 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:57:59,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i [2018-11-28 12:57:59,286 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/200594d0c/3ccf8723ebb14c5db645bbeecabc72b3/FLAGb780441e4 [2018-11-28 12:57:59,610 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:57:59,610 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/sv-benchmarks/c/floats-cdfpl/square_2_false-unreach-call_true-termination.i [2018-11-28 12:57:59,613 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/200594d0c/3ccf8723ebb14c5db645bbeecabc72b3/FLAGb780441e4 [2018-11-28 12:58:00,043 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/data/200594d0c/3ccf8723ebb14c5db645bbeecabc72b3 [2018-11-28 12:58:00,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:58:00,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:58:00,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:58:00,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:58:00,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:58:00,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c607cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00, skipping insertion in model container [2018-11-28 12:58:00,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:58:00,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:58:00,167 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:58:00,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:58:00,182 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:58:00,192 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:58:00,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00 WrapperNode [2018-11-28 12:58:00,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:58:00,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:58:00,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:58:00,194 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:58:00,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:58:00,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:58:00,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:58:00,210 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:58:00,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... [2018-11-28 12:58:00,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:58:00,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:58:00,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:58:00,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:58:00,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/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 [2018-11-28 12:58:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:58:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:58:00,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:58:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:58:00,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:58:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:58:02,449 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:58:02,449 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:58:02,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:58:02 BoogieIcfgContainer [2018-11-28 12:58:02,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:58:02,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:58:02,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:58:02,453 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:58:02,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:58:00" (1/3) ... [2018-11-28 12:58:02,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52adb61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:58:02, skipping insertion in model container [2018-11-28 12:58:02,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:58:00" (2/3) ... [2018-11-28 12:58:02,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52adb61e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:58:02, skipping insertion in model container [2018-11-28 12:58:02,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:58:02" (3/3) ... [2018-11-28 12:58:02,456 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2_false-unreach-call_true-termination.i [2018-11-28 12:58:02,464 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:58:02,468 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:58:02,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:58:02,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:58:02,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:58:02,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:58:02,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:58:02,495 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:58:02,495 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:58:02,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:58:02,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:58:02,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:58:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-28 12:58:02,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 12:58:02,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:58:02,515 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:58:02,517 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:58:02,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:58:02,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-28 12:58:02,524 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:58:02,524 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/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 [2018-11-28 12:58:02,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:58:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:59:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:59:21,460 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:59:21,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:59:21 BoogieIcfgContainer [2018-11-28 12:59:21,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:59:21,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:59:21,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:59:21,481 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:59:21,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:58:02" (3/4) ... [2018-11-28 12:59:21,483 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 12:59:21,517 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3a54347f-1d91-46d3-a940-0c6d051c453e/bin-2019/uautomizer/witness.graphml [2018-11-28 12:59:21,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:59:21,518 INFO L168 Benchmark]: Toolchain (without parser) took 81472.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:59:21,519 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:59:21,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.80 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:59:21,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.99 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:59:21,520 INFO L168 Benchmark]: Boogie Preprocessor took 14.96 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:59:21,521 INFO L168 Benchmark]: RCFGBuilder took 2224.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:59:21,521 INFO L168 Benchmark]: TraceAbstraction took 79030.44 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:59:21,522 INFO L168 Benchmark]: Witness Printer took 36.71 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. [2018-11-28 12:59:21,524 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.80 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.99 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.96 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2224.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 79030.44 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Witness Printer took 36.71 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: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] [L14] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] [L15] __VERIFIER_error() VAL [IN=0.9999998807907104, result=1.3984375, x=0.9999998807907104] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 78.9s 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=13occurred 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, 34.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 proved your program to be incorrect! Received shutdown request...