./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_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan --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 Taipan --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_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan --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 Taipan --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 05:42:42,443 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:42:42,444 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:42:42,452 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:42:42,452 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:42:42,453 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:42:42,454 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:42:42,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:42:42,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:42:42,456 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:42:42,457 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:42:42,457 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:42:42,458 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:42:42,459 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:42:42,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:42:42,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:42:42,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:42:42,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:42:42,463 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:42:42,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:42:42,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:42:42,465 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:42:42,467 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:42:42,467 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:42:42,467 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:42:42,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:42:42,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:42:42,470 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:42:42,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:42:42,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:42:42,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:42:42,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:42:42,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:42:42,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:42:42,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:42:42,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:42:42,475 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:42:42,482 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:42:42,482 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:42:42,483 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:42:42,483 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:42:42,483 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:42:42,484 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:42:42,484 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:42:42,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:42:42,485 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:42:42,485 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:42:42,486 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:42:42,486 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:42:42,486 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:42:42,486 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan 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 -> Taipan 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 05:42:42,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:42:42,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:42:42,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:42:42,520 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:42:42,521 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:42:42,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:42,561 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/74120a4ab/a999d5d7d9404ff2b3d09faef1e3c4d3/FLAGd4da39bad [2018-11-23 05:42:42,950 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:42:42,950 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:42,954 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/74120a4ab/a999d5d7d9404ff2b3d09faef1e3c4d3/FLAGd4da39bad [2018-11-23 05:42:42,962 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/74120a4ab/a999d5d7d9404ff2b3d09faef1e3c4d3 [2018-11-23 05:42:42,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:42:42,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:42:42,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:42:42,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:42:42,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:42:42,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:42:42" (1/1) ... [2018-11-23 05:42:42,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f3468e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:42, skipping insertion in model container [2018-11-23 05:42:42,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:42:42" (1/1) ... [2018-11-23 05:42:42,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:42:42,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:42:43,085 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:42:43,087 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:42:43,099 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:42:43,107 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:42:43,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43 WrapperNode [2018-11-23 05:42:43,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:42:43,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:42:43,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:42:43,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:42:43,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:42:43,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:42:43,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:42:43,120 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:42:43,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... [2018-11-23 05:42:43,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:42:43,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:42:43,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:42:43,131 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:42:43,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/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 05:42:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:42:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:42:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:42:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:42:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:42:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:42:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 05:42:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 05:42:43,313 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:42:43,313 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:42:43,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:43 BoogieIcfgContainer [2018-11-23 05:42:43,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:42:43,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:42:43,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:42:43,317 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:42:43,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:42:42" (1/3) ... [2018-11-23 05:42:43,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d049bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:43, skipping insertion in model container [2018-11-23 05:42:43,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:43" (2/3) ... [2018-11-23 05:42:43,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d049bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:43, skipping insertion in model container [2018-11-23 05:42:43,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:43" (3/3) ... [2018-11-23 05:42:43,319 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:43,327 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:42:43,333 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:42:43,346 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:42:43,372 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:42:43,372 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:42:43,372 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:42:43,372 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:42:43,372 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:42:43,373 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:42:43,373 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:42:43,373 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:42:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:42:43,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 05:42:43,391 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:42:43,392 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:42:43,393 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:42:43,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:42:43,398 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-23 05:42:43,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:42:43,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:42:43,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:42:43,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:42:43,440 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:42:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:42:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:42:43,481 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 05:42:43,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:42:43 BoogieIcfgContainer [2018-11-23 05:42:43,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:42:43,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:42:43,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:42:43,501 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:42:43,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:43" (3/4) ... [2018-11-23 05:42:43,504 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 05:42:43,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:42:43,505 INFO L168 Benchmark]: Toolchain (without parser) took 540.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:43,506 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:43,506 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.53 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:43,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.05 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:43,507 INFO L168 Benchmark]: Boogie Preprocessor took 11.15 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:43,507 INFO L168 Benchmark]: RCFGBuilder took 182.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:43,508 INFO L168 Benchmark]: TraceAbstraction took 186.10 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 05:42:43,508 INFO L168 Benchmark]: Witness Printer took 3.31 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 05:42:43,510 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 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.53 ms. Allocated memory is still 1.0 GB. Free memory was 962.3 MB in the beginning and 951.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.05 ms. Allocated memory is still 1.0 GB. Free memory is still 951.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.15 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 182.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 186.10 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 3.31 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 05:42:44,932 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:42:44,933 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:42:44,941 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:42:44,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:42:44,942 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:42:44,943 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:42:44,944 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:42:44,945 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:42:44,945 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:42:44,946 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:42:44,946 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:42:44,947 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:42:44,948 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:42:44,948 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:42:44,949 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:42:44,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:42:44,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:42:44,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:42:44,953 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:42:44,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:42:44,955 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:42:44,957 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:42:44,957 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:42:44,957 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:42:44,958 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:42:44,959 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:42:44,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:42:44,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:42:44,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:42:44,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:42:44,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:42:44,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:42:44,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:42:44,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:42:44,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:42:44,964 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 05:42:44,973 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:42:44,974 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:42:44,974 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:42:44,974 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:42:44,975 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:42:44,975 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:42:44,975 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:42:44,975 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:42:44,975 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:42:44,975 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:42:44,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:42:44,976 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:42:44,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:42:44,977 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:42:44,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:42:44,980 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 05:42:44,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:42:44,981 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:42:44,981 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:42:44,981 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_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan 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 -> Taipan 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 05:42:45,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:42:45,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:42:45,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:42:45,023 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:42:45,024 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:42:45,024 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:45,069 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/765b6ec49/6873dcccd0c94a1293c2004ab11140ee/FLAG7757ddc4a [2018-11-23 05:42:45,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:42:45,360 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/sv-benchmarks/c/float-benchs/inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:45,363 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/765b6ec49/6873dcccd0c94a1293c2004ab11140ee/FLAG7757ddc4a [2018-11-23 05:42:45,372 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/data/765b6ec49/6873dcccd0c94a1293c2004ab11140ee [2018-11-23 05:42:45,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:42:45,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:42:45,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:42:45,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:42:45,378 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:42:45,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,380 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 05:42:45, skipping insertion in model container [2018-11-23 05:42:45,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:42:45,397 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:42:45,501 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:42:45,505 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:42:45,514 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:42:45,524 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:42:45,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45 WrapperNode [2018-11-23 05:42:45,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:42:45,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:42:45,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:42:45,525 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:42:45,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:42:45,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:42:45,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:42:45,538 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:42:45,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... [2018-11-23 05:42:45,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:42:45,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:42:45,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:42:45,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:42:45,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/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 05:42:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:42:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:42:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:42:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:42:45,635 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:42:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:42:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 05:42:45,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 05:42:46,074 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:42:46,075 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:42:46,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:46 BoogieIcfgContainer [2018-11-23 05:42:46,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:42:46,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:42:46,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:42:46,077 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:42:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:42:45" (1/3) ... [2018-11-23 05:42:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341c50a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:46, skipping insertion in model container [2018-11-23 05:42:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:42:45" (2/3) ... [2018-11-23 05:42:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341c50a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:42:46, skipping insertion in model container [2018-11-23 05:42:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:46" (3/3) ... [2018-11-23 05:42:46,080 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_false-unreach-call_true-termination.c [2018-11-23 05:42:46,087 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:42:46,092 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:42:46,103 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:42:46,123 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:42:46,123 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:42:46,123 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:42:46,124 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:42:46,124 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:42:46,124 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:42:46,124 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:42:46,124 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:42:46,124 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:42:46,137 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 05:42:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 05:42:46,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:42:46,142 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:42:46,143 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:42:46,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:42:46,147 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-23 05:42:46,149 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:42:46,149 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/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 05:42:46,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:42:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:42:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 05:42:46,277 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 05:42:46,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:42:46 BoogieIcfgContainer [2018-11-23 05:42:46,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:42:46,309 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:42:46,309 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:42:46,309 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:42:46,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:42:46" (3/4) ... [2018-11-23 05:42:46,311 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 05:42:46,340 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49f42dc9-5268-4011-b2ab-306b25c6cf94/bin-2019/utaipan/witness.graphml [2018-11-23 05:42:46,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:42:46,341 INFO L168 Benchmark]: Toolchain (without parser) took 966.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:46,342 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 05:42:46,342 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.02 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:46,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:46,343 INFO L168 Benchmark]: Boogie Preprocessor took 13.73 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:42:46,344 INFO L168 Benchmark]: RCFGBuilder took 523.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -217.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:46,344 INFO L168 Benchmark]: TraceAbstraction took 232.95 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:46,345 INFO L168 Benchmark]: Witness Printer took 31.56 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-23 05:42:46,348 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 149.02 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 13.30 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.73 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 523.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -217.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 232.95 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * Witness Printer took 31.56 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: 6.6 MB). Peak memory consumption was 6.6 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...