./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_int_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_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 3a552ed0b53624bc27612451ed4207d0101db39b ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 3a552ed0b53624bc27612451ed4207d0101db39b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:13:46,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:13:46,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:13:46,837 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:13:46,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:13:46,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:13:46,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:13:46,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:13:46,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:13:46,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:13:46,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:13:46,842 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:13:46,843 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:13:46,844 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:13:46,845 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:13:46,845 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:13:46,846 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:13:46,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:13:46,849 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:13:46,850 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:13:46,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:13:46,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:13:46,853 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:13:46,853 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:13:46,853 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:13:46,854 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:13:46,855 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:13:46,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:13:46,856 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:13:46,857 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:13:46,857 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:13:46,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:13:46,858 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:13:46,858 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:13:46,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:13:46,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:13:46,859 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 15:13:46,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:13:46,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:13:46,870 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:13:46,870 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:13:46,871 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:13:46,871 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:13:46,871 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:13:46,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:13:46,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:13:46,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:13:46,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:13:46,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:13:46,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:13:46,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:13:46,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:13:46,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:13:46,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:13:46,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:13:46,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:13:46,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:13:46,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:13:46,874 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:13:46,875 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:13:46,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 15:13:46,875 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_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 -> 3a552ed0b53624bc27612451ed4207d0101db39b [2018-11-23 15:13:46,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:13:46,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:13:46,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:13:46,914 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:13:46,914 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:13:46,915 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:46,960 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/c96ee32d6/7757e74cf9f746e380a0faa42202bc7e/FLAG3fa9a7f9c [2018-11-23 15:13:47,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:13:47,360 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:47,364 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/c96ee32d6/7757e74cf9f746e380a0faa42202bc7e/FLAG3fa9a7f9c [2018-11-23 15:13:47,377 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/c96ee32d6/7757e74cf9f746e380a0faa42202bc7e [2018-11-23 15:13:47,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:13:47,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:13:47,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:13:47,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:13:47,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:13:47,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22877cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47, skipping insertion in model container [2018-11-23 15:13:47,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:13:47,408 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:13:47,513 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:13:47,516 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:13:47,525 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:13:47,534 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:13:47,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47 WrapperNode [2018-11-23 15:13:47,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:13:47,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:13:47,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:13:47,535 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:13:47,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:13:47,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:13:47,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:13:47,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:13:47,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... [2018-11-23 15:13:47,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:13:47,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:13:47,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:13:47,559 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:13:47,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 15:13:47,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:13:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:13:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:13:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:13:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:13:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:13:47,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:13:47,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:13:47,718 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:13:47,719 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 15:13:47,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:47 BoogieIcfgContainer [2018-11-23 15:13:47,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:13:47,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:13:47,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:13:47,723 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:13:47,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:13:47" (1/3) ... [2018-11-23 15:13:47,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466a4e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:47, skipping insertion in model container [2018-11-23 15:13:47,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:47" (2/3) ... [2018-11-23 15:13:47,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466a4e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:47, skipping insertion in model container [2018-11-23 15:13:47,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:47" (3/3) ... [2018-11-23 15:13:47,726 INFO L112 eAbstractionObserver]: Analyzing ICFG float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:47,733 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:13:47,738 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:13:47,752 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:13:47,775 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:13:47,776 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:13:47,776 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:13:47,776 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:13:47,776 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:13:47,776 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:13:47,776 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:13:47,776 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:13:47,776 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:13:47,788 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 15:13:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:13:47,792 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:13:47,793 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:13:47,795 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:13:47,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:13:47,800 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-23 15:13:47,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:13:47,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:13:47,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:13:47,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:13:47,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:13:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:13:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:13:47,891 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #20#return; [?] CALL call #t~ret1 := main(); [?] havoc ~x~0;havoc ~y~0;havoc ~z~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0);~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [main_~x~0=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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] assume 0 == ~cond; VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0 != (if ~x~0 >= -10 && ~x~0 <= 10 then 1 else 0); [L16] ~y~0 := ~someBinaryArithmeticFLOAToperation(~convertINTToFLOAT(~x~0 * ~x~0), 4.0); VAL [~x~0=0] [L17] CALL call __VERIFIER_assert((if ~someBinaryFLOATComparisonOperation(~y~0, 0.0) then 1 else 0)); VAL [#in~cond=0] [L6] ~cond := #in~cond; VAL [#in~cond=0, ~cond=0] [L6] COND TRUE 0 == ~cond VAL [#in~cond=0, ~cond=0] [L6] assert false; VAL [#in~cond=0, ~cond=0] [L10] int x; [L11] float y, z; [L13] x = __VERIFIER_nondet_int() [L16] y = x*x - 4.f VAL [x=0] [L17] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 15:13:47,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:13:47 BoogieIcfgContainer [2018-11-23 15:13:47,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:13:47,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:13:47,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:13:47,913 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:13:47,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:47" (3/4) ... [2018-11-23 15:13:47,918 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 15:13:47,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:13:47,918 INFO L168 Benchmark]: Toolchain (without parser) took 538.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -161.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:13:47,920 INFO L168 Benchmark]: CDTParser took 0.17 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 15:13:47,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.65 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 15:13:47,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:47,921 INFO L168 Benchmark]: Boogie Preprocessor took 11.05 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:13:47,922 INFO L168 Benchmark]: RCFGBuilder took 159.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:47,923 INFO L168 Benchmark]: TraceAbstraction took 192.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:47,923 INFO L168 Benchmark]: Witness Printer took 4.82 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 15:13:47,926 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 152.65 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 13.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.05 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 159.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -194.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 192.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.82 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 16. Possible FailurePath: [L10] int x; [L11] float y, z; [L13] x = __VERIFIER_nondet_int() [L16] y = x*x - 4.f VAL [x=0] [L17] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 15:13:49,565 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:13:49,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:13:49,575 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:13:49,575 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:13:49,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:13:49,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:13:49,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:13:49,580 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:13:49,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:13:49,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:13:49,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:13:49,582 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:13:49,583 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:13:49,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:13:49,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:13:49,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:13:49,587 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:13:49,589 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:13:49,590 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:13:49,591 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:13:49,592 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:13:49,594 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:13:49,594 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:13:49,595 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:13:49,595 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:13:49,596 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:13:49,597 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:13:49,598 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:13:49,598 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:13:49,599 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:13:49,599 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:13:49,599 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:13:49,600 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:13:49,600 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:13:49,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:13:49,601 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 15:13:49,614 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:13:49,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:13:49,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:13:49,615 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:13:49,616 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:13:49,616 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:13:49,616 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:13:49,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:13:49,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 15:13:49,617 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 15:13:49,618 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:13:49,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:13:49,618 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:13:49,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 15:13:49,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:13:49,619 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:13:49,619 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 15:13:49,620 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 15:13:49,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:13:49,620 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 15:13:49,620 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 15:13:49,620 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_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 -> 3a552ed0b53624bc27612451ed4207d0101db39b [2018-11-23 15:13:49,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:13:49,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:13:49,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:13:49,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:13:49,668 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:13:49,668 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:49,711 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/67e36b351/aa8860c77a5848c5a5ef3658f8721e6b/FLAGde5d74273 [2018-11-23 15:13:50,057 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:13:50,058 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/sv-benchmarks/c/float-benchs/float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:50,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/67e36b351/aa8860c77a5848c5a5ef3658f8721e6b/FLAGde5d74273 [2018-11-23 15:13:50,071 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/data/67e36b351/aa8860c77a5848c5a5ef3658f8721e6b [2018-11-23 15:13:50,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:13:50,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:13:50,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:13:50,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:13:50,078 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:13:50,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e3bff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50, skipping insertion in model container [2018-11-23 15:13:50,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:13:50,102 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:13:50,224 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:13:50,229 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:13:50,241 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:13:50,255 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:13:50,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50 WrapperNode [2018-11-23 15:13:50,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:13:50,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:13:50,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:13:50,256 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:13:50,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:13:50,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:13:50,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:13:50,274 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:13:50,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... [2018-11-23 15:13:50,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:13:50,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:13:50,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:13:50,290 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:13:50,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 15:13:50,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:13:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:13:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:13:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:13:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:13:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:13:50,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 15:13:50,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 15:13:51,050 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:13:51,050 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 15:13:51,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:51 BoogieIcfgContainer [2018-11-23 15:13:51,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:13:51,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:13:51,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:13:51,054 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:13:51,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:13:50" (1/3) ... [2018-11-23 15:13:51,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35634ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:51, skipping insertion in model container [2018-11-23 15:13:51,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:13:50" (2/3) ... [2018-11-23 15:13:51,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35634ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:13:51, skipping insertion in model container [2018-11-23 15:13:51,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:51" (3/3) ... [2018-11-23 15:13:51,056 INFO L112 eAbstractionObserver]: Analyzing ICFG float_int_inv_square_false-unreach-call_true-termination.c [2018-11-23 15:13:51,063 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:13:51,068 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 15:13:51,079 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 15:13:51,101 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:13:51,101 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:13:51,101 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 15:13:51,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:13:51,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:13:51,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:13:51,102 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:13:51,102 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:13:51,102 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:13:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 15:13:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 15:13:51,123 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:13:51,124 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:13:51,126 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 15:13:51,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:13:51,130 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-23 15:13:51,132 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 15:13:51,133 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/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 15:13:51,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:13:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:13:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:13:51,303 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #20#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 ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32);~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [main_~x~0=(_ bv2 32), 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [L10] int x; [L11] float y, z; [L13] x = __VERIFIER_nondet_int() [L16] y = x*x - 4.f VAL [x=2, y=0.0] [L17] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 15:13:51,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:13:51 BoogieIcfgContainer [2018-11-23 15:13:51,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:13:51,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:13:51,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:13:51,330 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:13:51,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:13:51" (3/4) ... [2018-11-23 15:13:51,333 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 #20#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 ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32);~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [main_~x~0=(_ bv2 32), 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assume 0bv32 == ~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret1 := main(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] 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(); [L10] havoc ~x~0; [L11] havoc ~y~0; [L11] havoc ~z~0; [L13] ~x~0 := #t~nondet0; [L13] havoc #t~nondet0; [L14] assume 0bv32 != (if ~bvsge32(~x~0, 4294967286bv32) && ~bvsle32(~x~0, 10bv32) then 1bv32 else 0bv32); [L16] ~y~0 := ~fp.sub~FLOAT(~roundNearestTiesToEven, ~convertINTToFLOAT(~roundNearestTiesToEven, ~bvmul32(~x~0, ~x~0)), ~to_fp~FLOAT(~roundNearestTiesToEven, 4.0)); VAL [~x~0=2bv32, ~y~0=~fp~LONGDOUBLE(0bv1, 0bv8, 0bv23)] [L17] CALL call __VERIFIER_assert((if !~fp.eq~FLOAT(~y~0, ~Pluszero~FLOAT()) then 1bv32 else 0bv32)); VAL [#in~cond=0bv32] [L6] ~cond := #in~cond; VAL [#in~cond=0bv32, ~cond=0bv32] [L6] COND TRUE 0bv32 == ~cond VAL [#in~cond=0bv32, ~cond=0bv32] [L6] assert false; VAL [#in~cond=0bv32, ~cond=0bv32] [L10] int x; [L11] float y, z; [L13] x = __VERIFIER_nondet_int() [L16] y = x*x - 4.f VAL [x=2, y=0.0] [L17] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] ----- [2018-11-23 15:13:51,367 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_350e2b2d-2bda-4e7d-aca3-e41ff5287dd9/bin-2019/uautomizer/witness.graphml [2018-11-23 15:13:51,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:13:51,368 INFO L168 Benchmark]: Toolchain (without parser) took 1294.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:13:51,369 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:13:51,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:51,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.64 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 15:13:51,370 INFO L168 Benchmark]: Boogie Preprocessor took 15.87 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 15:13:51,371 INFO L168 Benchmark]: RCFGBuilder took 761.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:51,371 INFO L168 Benchmark]: TraceAbstraction took 278.22 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:13:51,372 INFO L168 Benchmark]: Witness Printer took 37.37 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 15:13:51,375 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.64 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 15.87 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 761.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 278.22 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.37 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int x; [L11] float y, z; [L13] x = __VERIFIER_nondet_int() [L16] y = x*x - 4.f VAL [x=2, y=0.0] [L17] CALL __VERIFIER_assert(y != 0.f) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...