./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/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 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 ......................................................................................................................................................................................................................................... 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_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/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 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 .......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:46:08,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:46:08,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:46:08,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:46:08,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:46:08,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:46:08,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:46:08,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:46:08,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:46:08,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:46:08,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:46:08,181 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:46:08,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:46:08,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:46:08,183 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:46:08,184 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:46:08,184 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:46:08,185 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:46:08,186 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:46:08,187 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:46:08,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:46:08,188 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:46:08,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:46:08,190 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:46:08,190 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:46:08,191 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:46:08,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:46:08,192 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:46:08,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:46:08,193 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:46:08,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:46:08,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:46:08,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:46:08,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:46:08,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:46:08,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:46:08,194 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 08:46:08,204 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:46:08,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:46:08,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:46:08,205 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:46:08,205 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:46:08,206 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:46:08,206 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:46:08,207 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:46:08,207 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:46:08,208 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:46:08,208 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:46:08,209 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:46:08,209 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:46:08,209 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_3f6a928f-81f4-4b33-a047-a79fc34d4b08/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 -> 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 [2018-11-10 08:46:08,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:46:08,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:46:08,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:46:08,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:46:08,244 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:46:08,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:08,280 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/c4c6a315c/fb171f6b3aa045c08ab2c3b63ebda496/FLAG18ad5c8e2 [2018-11-10 08:46:08,697 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:46:08,697 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:08,702 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/c4c6a315c/fb171f6b3aa045c08ab2c3b63ebda496/FLAG18ad5c8e2 [2018-11-10 08:46:08,714 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/c4c6a315c/fb171f6b3aa045c08ab2c3b63ebda496 [2018-11-10 08:46:08,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:46:08,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 08:46:08,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:08,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:46:08,722 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:46:08,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e7f328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08, skipping insertion in model container [2018-11-10 08:46:08,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:46:08,747 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:46:08,866 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:08,869 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:46:08,881 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:08,892 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:46:08,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08 WrapperNode [2018-11-10 08:46:08,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:08,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:46:08,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:46:08,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:46:08,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... [2018-11-10 08:46:08,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:46:08,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:46:08,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:46:08,909 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:46:08,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:46:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:46:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:46:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 08:46:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:46:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 08:46:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 08:46:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 08:46:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 08:46:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:46:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:46:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:46:09,062 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:46:09,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:09 BoogieIcfgContainer [2018-11-10 08:46:09,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:46:09,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:46:09,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:46:09,065 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:46:09,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:46:08" (1/3) ... [2018-11-10 08:46:09,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fbddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:46:09, skipping insertion in model container [2018-11-10 08:46:09,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:08" (2/3) ... [2018-11-10 08:46:09,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fbddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:46:09, skipping insertion in model container [2018-11-10 08:46:09,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:09" (3/3) ... [2018-11-10 08:46:09,067 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:09,073 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:46:09,078 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:46:09,087 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:46:09,108 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:46:09,109 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:46:09,109 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:46:09,109 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:46:09,109 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:46:09,110 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:46:09,110 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:46:09,110 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:46:09,110 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:46:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-10 08:46:09,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 08:46:09,128 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:46:09,129 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:46:09,131 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:46:09,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:09,135 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-10 08:46:09,137 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:46:09,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:46:09,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:09,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:46:09,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:09,214 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:46:09,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:46:09 BoogieIcfgContainer [2018-11-10 08:46:09,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:46:09,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:46:09,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:46:09,227 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:46:09,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:09" (3/4) ... [2018-11-10 08:46:09,229 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:46:09,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:46:09,229 INFO L168 Benchmark]: Toolchain (without parser) took 512.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:09,231 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:09,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 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. [2018-11-10 08:46:09,232 INFO L168 Benchmark]: Boogie Preprocessor took 16.18 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:09,232 INFO L168 Benchmark]: RCFGBuilder took 153.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:09,232 INFO L168 Benchmark]: TraceAbstraction took 163.02 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:09,233 INFO L168 Benchmark]: Witness Printer took 2.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:09,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.93 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 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 Preprocessor took 16.18 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 153.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 163.02 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 <= -1e-20f || x >= 1e-20f [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 0.1.23-1dbac8b [2018-11-10 08:46:10,686 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:46:10,688 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:46:10,696 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:46:10,696 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:46:10,697 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:46:10,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:46:10,699 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:46:10,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:46:10,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:46:10,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:46:10,701 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:46:10,702 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:46:10,703 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:46:10,704 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:46:10,705 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:46:10,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:46:10,707 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:46:10,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:46:10,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:46:10,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:46:10,711 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:46:10,712 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:46:10,712 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:46:10,713 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:46:10,713 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:46:10,714 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:46:10,719 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:46:10,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:46:10,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:46:10,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:46:10,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:46:10,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:46:10,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:46:10,722 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:46:10,722 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:46:10,722 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-10 08:46:10,732 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:46:10,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:46:10,733 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:46:10,733 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:46:10,733 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:46:10,733 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:46:10,734 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:46:10,734 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:46:10,735 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:46:10,735 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:46:10,736 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-10 08:46:10,736 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:46:10,737 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 08:46:10,737 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 08:46:10,737 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_3f6a928f-81f4-4b33-a047-a79fc34d4b08/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 -> 9b5f8c7f8f0f24b8f3c006680a1188ad2ebf7298 [2018-11-10 08:46:10,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:46:10,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:46:10,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:46:10,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:46:10,782 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:46:10,783 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:10,829 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/42043839f/30ea7dd4c34347efa35e0850b9d58fb3/FLAG8801f23cf [2018-11-10 08:46:11,145 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:46:11,145 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/sv-benchmarks/c/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:11,149 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/42043839f/30ea7dd4c34347efa35e0850b9d58fb3/FLAG8801f23cf [2018-11-10 08:46:11,157 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/data/42043839f/30ea7dd4c34347efa35e0850b9d58fb3 [2018-11-10 08:46:11,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:46:11,160 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 08:46:11,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:11,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:46:11,164 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:46:11,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147cd99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11, skipping insertion in model container [2018-11-10 08:46:11,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:46:11,185 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:46:11,298 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:11,302 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:46:11,315 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:11,327 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:46:11,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11 WrapperNode [2018-11-10 08:46:11,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:11,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:46:11,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:46:11,328 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:46:11,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... [2018-11-10 08:46:11,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:46:11,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:46:11,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:46:11,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:46:11,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:46:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:46:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:46:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 08:46:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 08:46:11,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-10 08:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 08:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 08:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:46:11,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:46:12,126 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:46:12,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:12 BoogieIcfgContainer [2018-11-10 08:46:12,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:46:12,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:46:12,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:46:12,129 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:46:12,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:46:11" (1/3) ... [2018-11-10 08:46:12,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8f880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:46:12, skipping insertion in model container [2018-11-10 08:46:12,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:11" (2/3) ... [2018-11-10 08:46:12,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8f880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:46:12, skipping insertion in model container [2018-11-10 08:46:12,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:12" (3/3) ... [2018-11-10 08:46:12,131 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_true-unreach-call_true-termination.c [2018-11-10 08:46:12,139 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:46:12,144 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:46:12,152 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:46:12,171 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:46:12,171 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:46:12,171 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:46:12,171 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:46:12,172 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:46:12,172 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:46:12,172 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:46:12,172 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:46:12,172 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:46:12,183 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-10 08:46:12,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 08:46:12,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:46:12,187 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:46:12,189 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:46:12,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:12,193 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-11-10 08:46:12,196 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 08:46:12,196 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 08:46:12,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:46:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:46:12,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:46:24,314 WARN L179 SmtUtils]: Spent 8.73 s on a formula simplification that was a NOOP. DAG size: 25 [2018-11-10 08:46:29,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:46:29,130 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 08:46:29,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:46:29,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 08:46:29,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 08:46:29,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 08:46:29,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 08:46:29,160 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-10 08:46:45,572 WARN L179 SmtUtils]: Spent 12.59 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-10 08:46:56,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:46:56,191 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-11-10 08:46:56,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 08:46:56,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-11-10 08:46:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:46:56,244 INFO L225 Difference]: With dead ends: 30 [2018-11-10 08:46:56,244 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 08:46:56,246 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:46:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 08:46:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 08:46:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 08:46:56,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 08:46:56,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-10 08:46:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:46:56,265 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:46:56,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 08:46:56,265 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:46:56,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 08:46:56,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 08:47:09,538 WARN L179 SmtUtils]: Spent 13.24 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-10 08:47:09,541 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 08:47:09,541 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:47:09,541 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 08:47:09,541 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 08:47:09,541 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 08:47:09,541 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 08:47:09,541 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-11-10 08:47:09,542 INFO L425 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-11-10 08:47:09,542 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-11-10 08:47:09,542 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-11-10 08:47:09,543 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-11-10 08:47:09,543 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (fp.neg .cse0)) (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (= (fp.mul RNE v_prenex_1 v_prenex_1) main_~y~0) (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (fp.neg .cse1)) (fp.leq v_prenex_1 (fp.neg ((_ to_fp 8 24) RNE (/ 1.0 100000000000000000000.0))))))) (exists ((main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) RNE 1.0))) (and (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (fp.neg .cse2)) (fp.geq main_~x~0 ((_ to_fp 8 24) RNE (/ 1.0 100000000000000000000.0))) (= (fp.mul RNE main_~x~0 main_~x~0) main_~y~0))))))) [2018-11-10 08:47:09,543 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-10 08:47:09,543 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-11-10 08:47:09,544 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-11-10 08:47:09,544 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-10 08:47:09,544 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-10 08:47:09,544 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-11-10 08:47:09,544 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-10 08:47:09,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:47:09 BoogieIcfgContainer [2018-11-10 08:47:09,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:47:09,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:47:09,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:47:09,548 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:47:09,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:12" (3/4) ... [2018-11-10 08:47:09,552 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 08:47:09,558 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 08:47:09,559 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 08:47:09,559 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 08:47:09,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-10 08:47:09,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 08:47:09,562 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 08:47:09,587 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3f6a928f-81f4-4b33-a047-a79fc34d4b08/bin-2019/uautomizer/witness.graphml [2018-11-10 08:47:09,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:47:09,588 INFO L168 Benchmark]: Toolchain (without parser) took 58428.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -131.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,589 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:47:09,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.95 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,589 INFO L168 Benchmark]: Boogie Preprocessor took 24.46 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,590 INFO L168 Benchmark]: RCFGBuilder took 774.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,590 INFO L168 Benchmark]: TraceAbstraction took 57419.78 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,590 INFO L168 Benchmark]: Witness Printer took 40.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:47:09,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.95 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.46 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 774.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57419.78 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * Witness Printer took 40.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 57.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 27.0s AutomataDifference, 0.0s DeadEndRemovalTime, 13.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 9 SDslu, 39 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.6s Time, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 67 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 13.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 16.8s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 1 QuantifiedInterpolants, 693 SizeOfPredicates, 3 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...