./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/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 5cdc4d12f446be57385f35c672efbdd6980b00fa .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/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 5cdc4d12f446be57385f35c672efbdd6980b00fa .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-aa41828 [2018-11-23 05:52:46,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:52:46,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:52:46,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:52:46,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:52:46,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:52:46,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:52:46,864 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:52:46,865 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:52:46,866 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:52:46,867 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:52:46,867 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:52:46,868 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:52:46,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:52:46,869 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:52:46,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:52:46,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:52:46,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:52:46,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:52:46,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:52:46,875 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:52:46,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:52:46,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:52:46,877 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:52:46,877 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:52:46,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:52:46,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:52:46,880 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:52:46,880 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:52:46,881 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:52:46,881 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:52:46,882 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:52:46,882 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:52:46,882 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:52:46,883 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:52:46,883 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:52:46,883 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 05:52:46,893 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:52:46,893 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:52:46,894 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:52:46,894 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:52:46,894 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:52:46,894 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:52:46,894 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:52:46,895 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:52:46,895 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:52:46,896 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:52:46,896 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:52:46,897 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:52:46,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:52:46,897 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_7e572404-852d-430a-afd4-17e9726c7662/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 -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2018-11-23 05:52:46,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:52:46,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:52:46,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:52:46,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:52:46,928 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:52:46,928 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:46,964 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/f0d56fc7d/cfbb2a78ed5b4743bf3963d2a16fb673/FLAGafb57b4e3 [2018-11-23 05:52:47,264 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:52:47,265 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:47,268 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/f0d56fc7d/cfbb2a78ed5b4743bf3963d2a16fb673/FLAGafb57b4e3 [2018-11-23 05:52:47,280 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/f0d56fc7d/cfbb2a78ed5b4743bf3963d2a16fb673 [2018-11-23 05:52:47,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:52:47,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:52:47,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:52:47,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:52:47,287 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:52:47,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cfd07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47, skipping insertion in model container [2018-11-23 05:52:47,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:52:47,309 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:52:47,417 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:52:47,420 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:52:47,431 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:52:47,441 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:52:47,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47 WrapperNode [2018-11-23 05:52:47,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:52:47,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:52:47,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:52:47,442 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:52:47,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:52:47,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:52:47,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:52:47,459 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:52:47,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... [2018-11-23 05:52:47,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:52:47,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:52:47,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:52:47,473 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:52:47,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/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 [2018-11-23 05:52:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:52:47,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:52:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:52:47,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:52:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:52:47,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:52:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 05:52:47,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 05:52:47,701 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:52:47,702 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:52:47,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:47 BoogieIcfgContainer [2018-11-23 05:52:47,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:52:47,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:52:47,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:52:47,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:52:47,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:52:47" (1/3) ... [2018-11-23 05:52:47,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cdf62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:52:47, skipping insertion in model container [2018-11-23 05:52:47,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:47" (2/3) ... [2018-11-23 05:52:47,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cdf62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:52:47, skipping insertion in model container [2018-11-23 05:52:47,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:47" (3/3) ... [2018-11-23 05:52:47,709 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:47,719 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:52:47,725 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:52:47,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:52:47,772 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:52:47,772 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:52:47,772 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:52:47,773 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:52:47,773 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:52:47,773 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:52:47,773 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:52:47,773 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:52:47,773 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:52:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:52:47,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 05:52:47,796 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:52:47,797 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:52:47,799 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:52:47,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:52:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-23 05:52:47,807 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 05:52:47,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 05:52:47,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:52:47,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:52:47,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:52:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:52:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:52:47,899 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #27#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;~x~0 := #t~nondet0;havoc #t~nondet0;assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [main_~x~0=2.0] [?] assume ~someBinaryFLOATComparisonOperation(~x~0, 0.0);~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [main_~x~0=2.0] [?] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [|__VERIFIER_assert_#in~cond|=0] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume 0 == ~cond; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] assume !false; VAL [__VERIFIER_assert_~cond=0, |__VERIFIER_assert_#in~cond|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17-L21] assume ~someBinaryFLOATComparisonOperation(~x~0, 0.0); [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17-L21] assume ~someBinaryFLOATComparisonOperation(~x~0, 0.0); [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17] COND TRUE ~someBinaryFLOATComparisonOperation(~x~0, 0.0) [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17] COND TRUE ~someBinaryFLOATComparisonOperation(~x~0, 0.0) [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17] COND TRUE ~someBinaryFLOATComparisonOperation(~x~0, 0.0) [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0 != (if ~someBinaryFLOATComparisonOperation(~x~0, ~someUnaryFLOAToperation(1.0)) && ~someBinaryFLOATComparisonOperation(~x~0, 1.0) then 1 else 0); VAL [~x~0=2.0] [L17] COND TRUE ~someBinaryFLOATComparisonOperation(~x~0, 0.0) [L18] ~y~0 := ~someBinaryArithmeticFLOAToperation(~x~0, ~x~0); VAL [~x~0=2.0] [L19] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L8] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L8] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L8] assert false; VAL [#in~cond=0, ~cond=0] [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=2] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 05:52:47,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:52:47 BoogieIcfgContainer [2018-11-23 05:52:47,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:52:47,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:52:47,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:52:47,922 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:52:47,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:47" (3/4) ... [2018-11-23 05:52:47,926 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 05:52:47,926 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:52:47,927 INFO L168 Benchmark]: Toolchain (without parser) took 644.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:52:47,928 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:52:47,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:47,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 940.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:47,929 INFO L168 Benchmark]: Boogie Preprocessor took 13.77 ms. Allocated memory is still 1.0 GB. Free memory is still 940.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:52:47,930 INFO L168 Benchmark]: RCFGBuilder took 229.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:47,930 INFO L168 Benchmark]: TraceAbstraction took 219.20 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. [2018-11-23 05:52:47,931 INFO L168 Benchmark]: Witness Printer took 3.62 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. [2018-11-23 05:52:47,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.17 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 16.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 940.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.77 ms. Allocated memory is still 1.0 GB. Free memory is still 940.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 940.5 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 219.20 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 3.62 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 18. Possible FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=2] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 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=19occurred 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-aa41828 [2018-11-23 05:52:49,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:52:49,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:52:49,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:52:49,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:52:49,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:52:49,402 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:52:49,403 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:52:49,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:52:49,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:52:49,405 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:52:49,405 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:52:49,406 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:52:49,407 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:52:49,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:52:49,408 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:52:49,408 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:52:49,410 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:52:49,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:52:49,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:52:49,413 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:52:49,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:52:49,415 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:52:49,415 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:52:49,415 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:52:49,416 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:52:49,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:52:49,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:52:49,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:52:49,419 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:52:49,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:52:49,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:52:49,419 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:52:49,420 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:52:49,420 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:52:49,421 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:52:49,421 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 05:52:49,431 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:52:49,431 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:52:49,432 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:52:49,432 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:52:49,432 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 05:52:49,433 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:52:49,433 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:52:49,434 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:52:49,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:52:49,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:52:49,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:52:49,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:52:49,435 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:52:49,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:52:49,435 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:52:49,436 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:52:49,436 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_7e572404-852d-430a-afd4-17e9726c7662/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 -> 5cdc4d12f446be57385f35c672efbdd6980b00fa [2018-11-23 05:52:49,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:52:49,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:52:49,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:52:49,474 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:52:49,474 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:52:49,475 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:49,511 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/88ba46978/1366800ea5574b44a31dd53efd1cafd2/FLAG47fa79e6e [2018-11-23 05:52:49,900 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:52:49,901 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:49,905 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/88ba46978/1366800ea5574b44a31dd53efd1cafd2/FLAG47fa79e6e [2018-11-23 05:52:49,915 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/data/88ba46978/1366800ea5574b44a31dd53efd1cafd2 [2018-11-23 05:52:49,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:52:49,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:52:49,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:52:49,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:52:49,923 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:52:49,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:52:49" (1/1) ... [2018-11-23 05:52:49,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82defbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:49, skipping insertion in model container [2018-11-23 05:52:49,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:52:49" (1/1) ... [2018-11-23 05:52:49,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:52:49,949 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:52:50,067 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:52:50,072 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:52:50,084 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:52:50,095 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:52:50,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50 WrapperNode [2018-11-23 05:52:50,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:52:50,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:52:50,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:52:50,097 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:52:50,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:52:50,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:52:50,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:52:50,114 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:52:50,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... [2018-11-23 05:52:50,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:52:50,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:52:50,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:52:50,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:52:50,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/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 [2018-11-23 05:52:50,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:52:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:52:50,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:52:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:52:50,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:52:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:52:50,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 05:52:50,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 05:52:50,662 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:52:50,663 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:52:50,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:50 BoogieIcfgContainer [2018-11-23 05:52:50,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:52:50,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:52:50,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:52:50,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:52:50,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:52:49" (1/3) ... [2018-11-23 05:52:50,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3defd089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:52:50, skipping insertion in model container [2018-11-23 05:52:50,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:52:50" (2/3) ... [2018-11-23 05:52:50,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3defd089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:52:50, skipping insertion in model container [2018-11-23 05:52:50,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:50" (3/3) ... [2018-11-23 05:52:50,668 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-11-23 05:52:50,673 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:52:50,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:52:50,686 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:52:50,703 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:52:50,704 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:52:50,704 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:52:50,704 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:52:50,704 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:52:50,704 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:52:50,704 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:52:50,704 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:52:50,704 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:52:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:52:50,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 05:52:50,719 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:52:50,719 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:52:50,721 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:52:50,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:52:50,724 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-23 05:52:50,727 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:52:50,727 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/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 [2018-11-23 05:52:50,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:52:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:52:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:52:50,862 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #27#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;~x~0 := #t~nondet0;havoc #t~nondet0;assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [main_~x~0=(fp #b0 #b00000000 #b00000000000000000000001)] [?] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT());~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [main_~x~0=(fp #b0 #b00000000 #b00000000000000000000001), main_~y~0=(fp #b0 #b00000000 #b00000000000000000000000)] [?] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [|__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume 0bv32 == ~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume !false; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17-L21] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()); [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17-L21] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()); [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=0.000000000000000000000000000000000000000000001401298464324817, y=0.0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 05:52:50,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:52:50 BoogieIcfgContainer [2018-11-23 05:52:50,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:52:50,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:52:50,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:52:50,889 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:52:50,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:52:50" (3/4) ... [2018-11-23 05:52:50,891 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #27#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;~x~0 := #t~nondet0;havoc #t~nondet0;assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [main_~x~0=(fp #b0 #b00000000 #b00000000000000000000001)] [?] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT());~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [main_~x~0=(fp #b0 #b00000000 #b00000000000000000000001), main_~y~0=(fp #b0 #b00000000 #b00000000000000000000000)] [?] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [|__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] ~cond := #in~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume 0bv32 == ~cond; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] assume !false; VAL [__VERIFIER_assert_~cond=(_ bv0 32), |__VERIFIER_assert_#in~cond|=(_ bv0 32)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17-L21] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()); [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17-L21] assume !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()); [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L12] havoc ~x~0; [L12] havoc ~y~0; [L12] havoc ~z~0; [L14] ~x~0 := #t~nondet0; [L14] havoc #t~nondet0; [L15] assume 0bv32 != (if ~fp.geq~FLOAT(~x~0, ~fp.neg~FLOAT(~to_fp~FLOAT(~roundNearestTiesToEven, 1.0))) && ~fp.leq~FLOAT(~x~0, ~to_fp~FLOAT(~roundNearestTiesToEven, 1.0)) then 1bv32 else 0bv32); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23)] [L17] COND TRUE !~fp.eq~FLOAT(~x~0, ~Pluszero~FLOAT()) [L18] ~y~0 := ~fp.mul~FLOAT(~roundNearestTiesToEven, ~x~0, ~x~0); VAL [~x~0=~fp~LONGDOUBLE(0bv1, 0bv8, 1bv23), ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L19] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L8] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L8] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L8] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=0.000000000000000000000000000000000000000000001401298464324817, y=0.0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 05:52:50,920 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7e572404-852d-430a-afd4-17e9726c7662/bin-2019/uautomizer/witness.graphml [2018-11-23 05:52:50,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:52:50,921 INFO L168 Benchmark]: Toolchain (without parser) took 1002.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:52:50,922 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-11-23 05:52:50,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:50,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.12 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. [2018-11-23 05:52:50,923 INFO L168 Benchmark]: Boogie Preprocessor took 15.15 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:52:50,924 INFO L168 Benchmark]: RCFGBuilder took 533.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:50,924 INFO L168 Benchmark]: TraceAbstraction took 224.97 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:52:50,925 INFO L168 Benchmark]: Witness Printer took 31.48 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. [2018-11-23 05:52:50,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 176.62 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.12 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. * Boogie Preprocessor took 15.15 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 533.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 224.97 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 31.48 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: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] float x, y, z; [L14] x = __VERIFIER_nondet_float() [L17] COND TRUE x != 0.f [L18] y = x * x VAL [x=0.000000000000000000000000000000000000000000001401298464324817, y=0.0] [L19] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 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=19occurred 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 proved your program to be incorrect! Received shutdown request...