./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 .............................................................................................................................................................................................................................................. 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_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 e96842f9a03cb3c7d57e4720c2380ee270a08502 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:27:46,366 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:27:46,367 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:27:46,374 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:27:46,374 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:27:46,375 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:27:46,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:27:46,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:27:46,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:27:46,378 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:27:46,379 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:27:46,379 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:27:46,380 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:27:46,380 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:27:46,381 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:27:46,382 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:27:46,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:27:46,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:27:46,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:27:46,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:27:46,386 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:27:46,387 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:27:46,388 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:27:46,388 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:27:46,388 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:27:46,389 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:27:46,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:27:46,390 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:27:46,391 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:27:46,391 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:27:46,391 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:27:46,392 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:27:46,392 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:27:46,392 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:27:46,393 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:27:46,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:27:46,394 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 10:27:46,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:27:46,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:27:46,403 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:27:46,403 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:27:46,404 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:27:46,404 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:27:46,404 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:27:46,404 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:27:46,404 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:27:46,404 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:27:46,405 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:27:46,406 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:27:46,406 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:27:46,406 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:27:46,407 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:27:46,407 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:27:46,407 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:27:46,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:27:46,407 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_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-18 10:27:46,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:27:46,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:27:46,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:27:46,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:27:46,439 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:27:46,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:46,473 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a51155339/38d1c6ff9664403183f7d1abfe27c415/FLAGe15ba59e7 [2018-11-18 10:27:46,881 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:27:46,881 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:46,886 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a51155339/38d1c6ff9664403183f7d1abfe27c415/FLAGe15ba59e7 [2018-11-18 10:27:46,897 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a51155339/38d1c6ff9664403183f7d1abfe27c415 [2018-11-18 10:27:46,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:27:46,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:27:46,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:46,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:27:46,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:27:46,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:46" (1/1) ... [2018-11-18 10:27:46,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3275144b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:46, skipping insertion in model container [2018-11-18 10:27:46,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:46" (1/1) ... [2018-11-18 10:27:46,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:27:46,929 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:27:47,055 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:47,059 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:27:47,070 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:47,081 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:27:47,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47 WrapperNode [2018-11-18 10:27:47,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:47,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:27:47,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:27:47,082 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:27:47,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... [2018-11-18 10:27:47,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:27:47,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:27:47,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:27:47,104 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:27:47,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 [2018-11-18 10:27:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:27:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:27:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:27:47,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:27:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:27:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:27:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:27:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:27:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:27:47,295 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:27:47,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:47 BoogieIcfgContainer [2018-11-18 10:27:47,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:27:47,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:27:47,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:27:47,298 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:27:47,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:27:46" (1/3) ... [2018-11-18 10:27:47,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa37316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:47, skipping insertion in model container [2018-11-18 10:27:47,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:47" (2/3) ... [2018-11-18 10:27:47,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa37316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:47, skipping insertion in model container [2018-11-18 10:27:47,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:47" (3/3) ... [2018-11-18 10:27:47,301 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:47,306 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:27:47,311 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:27:47,321 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:27:47,341 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:27:47,342 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:27:47,342 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:27:47,342 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:27:47,342 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:27:47,342 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:27:47,342 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:27:47,342 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:27:47,342 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:27:47,354 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 10:27:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:27:47,357 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:47,358 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:47,360 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:47,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:47,363 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 10:27:47,364 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:27:47,365 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:27:47,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:47,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:47,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:27:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:27:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:27:47,430 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:27:47,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:27:47 BoogieIcfgContainer [2018-11-18 10:27:47,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:27:47,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:27:47,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:27:47,446 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:27:47,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:47" (3/4) ... [2018-11-18 10:27:47,448 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:27:47,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:27:47,449 INFO L168 Benchmark]: Toolchain (without parser) took 549.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:27:47,451 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:27:47,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.49 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 941.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:47,452 INFO L168 Benchmark]: Boogie Preprocessor took 21.90 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:47,453 INFO L168 Benchmark]: RCFGBuilder took 191.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -209.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:47,454 INFO L168 Benchmark]: TraceAbstraction took 148.59 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:47,454 INFO L168 Benchmark]: Witness Printer took 3.35 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. [2018-11-18 10:27:47,457 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.49 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 941.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.90 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -209.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148.59 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.35 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: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z VAL [x=10000000] [L14] CALL __VERIFIER_assert(r == 2.f) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 10:27:48,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:27:48,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:27:48,883 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:27:48,883 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:27:48,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:27:48,885 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:27:48,886 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:27:48,887 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:27:48,888 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:27:48,888 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:27:48,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:27:48,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:27:48,890 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:27:48,891 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:27:48,891 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:27:48,892 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:27:48,893 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:27:48,894 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:27:48,895 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:27:48,896 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:27:48,897 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:27:48,899 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:27:48,899 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:27:48,899 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:27:48,900 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:27:48,900 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:27:48,901 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:27:48,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:27:48,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:27:48,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:27:48,903 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:27:48,903 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:27:48,903 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:27:48,904 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:27:48,904 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:27:48,904 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 10:27:48,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:27:48,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:27:48,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:27:48,916 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:27:48,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:27:48,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:27:48,916 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:27:48,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:27:48,917 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:27:48,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:27:48,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:27:48,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:27:48,919 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 10:27:48,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:27:48,920 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:27:48,920 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:27:48,920 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_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2018-11-18 10:27:48,951 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:27:48,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:27:48,962 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:27:48,964 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:27:48,964 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:27:48,964 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:49,009 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a5de94a8b/0301803b7f3c4239b4956205f21ba1b6/FLAGa67996022 [2018-11-18 10:27:49,324 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:27:49,325 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/sv-benchmarks/c/float-benchs/addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:49,329 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a5de94a8b/0301803b7f3c4239b4956205f21ba1b6/FLAGa67996022 [2018-11-18 10:27:49,337 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/data/a5de94a8b/0301803b7f3c4239b4956205f21ba1b6 [2018-11-18 10:27:49,339 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:27:49,340 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:27:49,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:49,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:27:49,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:27:49,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e366777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49, skipping insertion in model container [2018-11-18 10:27:49,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:27:49,362 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:27:49,465 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:49,470 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:27:49,479 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:27:49,487 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:27:49,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49 WrapperNode [2018-11-18 10:27:49,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:27:49,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:27:49,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:27:49,489 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:27:49,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... [2018-11-18 10:27:49,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:27:49,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:27:49,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:27:49,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:27:49,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 [2018-11-18 10:27:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:27:49,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:27:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 10:27:49,603 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:27:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:27:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 10:27:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:27:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:27:49,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:27:49,721 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:27:49,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:49 BoogieIcfgContainer [2018-11-18 10:27:49,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:27:49,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:27:49,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:27:49,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:27:49,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:27:49" (1/3) ... [2018-11-18 10:27:49,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d090712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:49, skipping insertion in model container [2018-11-18 10:27:49,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:27:49" (2/3) ... [2018-11-18 10:27:49,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d090712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:27:49, skipping insertion in model container [2018-11-18 10:27:49,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:49" (3/3) ... [2018-11-18 10:27:49,727 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact_true-unreach-call_true-termination.c [2018-11-18 10:27:49,732 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:27:49,737 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:27:49,745 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:27:49,762 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:27:49,763 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:27:49,763 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:27:49,763 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:27:49,763 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:27:49,763 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:27:49,763 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:27:49,763 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:27:49,763 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:27:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-18 10:27:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:27:49,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:27:49,779 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:27:49,780 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:27:49,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:27:49,784 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-18 10:27:49,786 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:27:49,786 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/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 [2018-11-18 10:27:49,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:27:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:27:49,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:27:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:27:49,932 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:27:49,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:27:49,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:27:49,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:27:49,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:27:49,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:27:49,952 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-18 10:27:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:27:49,992 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-18 10:27:49,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 10:27:49,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 10:27:49,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:27:49,998 INFO L225 Difference]: With dead ends: 24 [2018-11-18 10:27:49,998 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:27:50,000 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:27:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:27:50,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:27:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:27:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:27:50,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 10:27:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:27:50,016 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:27:50,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:27:50,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:27:50,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:27:50,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:27:50,055 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 10:27:50,055 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:27:50,055 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:27:50,055 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:27:50,056 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:27:50,056 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:27:50,056 INFO L421 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 10000000.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 .cse1) (fp.sub roundNearestTiesToEven .cse0 .cse1))) main_~r~0) [2018-11-18 10:27:50,056 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-11-18 10:27:50,056 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-18 10:27:50,056 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-18 10:27:50,057 INFO L425 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-18 10:27:50,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:27:50 BoogieIcfgContainer [2018-11-18 10:27:50,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:27:50,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:27:50,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:27:50,060 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:27:50,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:27:49" (3/4) ... [2018-11-18 10:27:50,062 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:27:50,066 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:27:50,067 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:27:50,067 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 10:27:50,070 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 10:27:50,070 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:27:50,070 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:27:50,070 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:27:50,093 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49e6fb64-e092-45e4-9f2f-2a5daae6d8bc/bin-2019/uautomizer/witness.graphml [2018-11-18 10:27:50,093 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:27:50,094 INFO L168 Benchmark]: Toolchain (without parser) took 754.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 4.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:50,095 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. [2018-11-18 10:27:50,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.67 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:50,096 INFO L168 Benchmark]: Boogie Preprocessor took 20.04 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. [2018-11-18 10:27:50,096 INFO L168 Benchmark]: RCFGBuilder took 212.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 932.6 MB in the beginning and 1.2 GB in the end (delta: -227.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:50,097 INFO L168 Benchmark]: TraceAbstraction took 337.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:50,097 INFO L168 Benchmark]: Witness Printer took 33.90 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:27:50,100 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 147.67 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.04 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. * RCFGBuilder took 212.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.6 MB). Free memory was 932.6 MB in the beginning and 1.2 GB in the end (delta: -227.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 337.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.90 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 17 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 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...