./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 a9ad6ad46925d70ccfe8113c6806757723d44310 .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 a9ad6ad46925d70ccfe8113c6806757723d44310 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:01:10,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:01:10,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:01:10,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:01:10,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:01:10,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:01:10,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:01:10,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:01:10,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:01:10,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:01:10,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:01:10,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:01:10,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:01:10,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:01:10,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:01:10,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:01:10,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:01:10,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:01:10,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:01:10,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:01:10,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:01:10,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:01:10,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:01:10,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:01:10,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:01:10,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:01:10,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:01:10,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:01:10,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:01:10,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:01:10,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:01:10,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:01:10,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:01:10,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:01:10,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:01:10,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:01:10,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:01:10,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:01:10,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:01:10,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:01:10,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:01:10,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:01:10,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:01:10,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:01:10,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:01:10,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:01:10,225 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:01:10,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:01:10,225 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:01:10,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:01:10,226 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:01:10,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:01:10,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:01:10,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:01:10,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:01:10,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:01:10,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:01:10,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:01:10,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:01:10,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:01:10,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:01:10,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:01:10,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:01:10,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:01:10,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:01:10,229 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:01:10,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2019-12-07 16:01:10,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:01:10,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:01:10,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:01:10,350 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:01:10,350 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:01:10,351 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-12-07 16:01:10,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/2e922008e/47e47d4cc4244a6d93c82b83efcaca8b/FLAG32c1c07a0 [2019-12-07 16:01:10,704 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:01:10,705 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-12-07 16:01:10,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/2e922008e/47e47d4cc4244a6d93c82b83efcaca8b/FLAG32c1c07a0 [2019-12-07 16:01:10,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/2e922008e/47e47d4cc4244a6d93c82b83efcaca8b [2019-12-07 16:01:10,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:01:10,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:01:10,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:10,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:01:10,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:01:10,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aaa2f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10, skipping insertion in model container [2019-12-07 16:01:10,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:01:10,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:01:10,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:10,877 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:01:10,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:10,899 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:01:10,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10 WrapperNode [2019-12-07 16:01:10,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:10,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:10,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:01:10,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:01:10,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:10,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:01:10,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:01:10,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:01:10,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... [2019-12-07 16:01:10,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:01:10,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:01:10,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:01:10,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:01:10,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 [2019-12-07 16:01:10,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:01:10,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:01:11,055 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:01:11,055 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 16:01:11,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:11 BoogieIcfgContainer [2019-12-07 16:01:11,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:01:11,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:01:11,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:01:11,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:01:11,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:01:10" (1/3) ... [2019-12-07 16:01:11,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f31f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:11, skipping insertion in model container [2019-12-07 16:01:11,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:10" (2/3) ... [2019-12-07 16:01:11,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f31f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:11, skipping insertion in model container [2019-12-07 16:01:11,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:11" (3/3) ... [2019-12-07 16:01:11,060 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-12-07 16:01:11,066 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:01:11,070 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:01:11,077 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:01:11,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:01:11,091 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:01:11,091 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:01:11,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:01:11,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:01:11,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:01:11,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:01:11,092 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:01:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 16:01:11,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 16:01:11,104 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:11,104 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 16:01:11,104 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:11,108 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-12-07 16:01:11,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:01:11,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816563654] [2019-12-07 16:01:11,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:01:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:01:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:01:11,183 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:01:11,183 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:01:11,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:01:11 BoogieIcfgContainer [2019-12-07 16:01:11,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:01:11,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:01:11,194 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:01:11,194 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:01:11,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:11" (3/4) ... [2019-12-07 16:01:11,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:01:11,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:01:11,199 INFO L168 Benchmark]: Toolchain (without parser) took 477.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:11,199 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:11,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:11,200 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:11,200 INFO L168 Benchmark]: Boogie Preprocessor took 10.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:11,201 INFO L168 Benchmark]: RCFGBuilder took 119.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:11,201 INFO L168 Benchmark]: TraceAbstraction took 137.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:11,202 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:11,204 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 119.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 137.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.00 ms. Allocated memory is still 1.1 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e8f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 16:01:12,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:01:12,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:01:12,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:01:12,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:01:12,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:01:12,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:01:12,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:01:12,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:01:12,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:01:12,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:01:12,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:01:12,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:01:12,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:01:12,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:01:12,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:01:12,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:01:12,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:01:12,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:01:12,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:01:12,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:01:12,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:01:12,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:01:12,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:01:12,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:01:12,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:01:12,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:01:12,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:01:12,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:01:12,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:01:12,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:01:12,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:01:12,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:01:12,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:01:12,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:01:12,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:01:12,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:01:12,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:01:12,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:01:12,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:01:12,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:01:12,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:01:12,612 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:01:12,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:01:12,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:01:12,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:01:12,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:01:12,615 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:01:12,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:01:12,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:01:12,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:01:12,617 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 -> a9ad6ad46925d70ccfe8113c6806757723d44310 [2019-12-07 16:01:12,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:01:12,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:01:12,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:01:12,792 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:01:12,792 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:01:12,792 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-12-07 16:01:12,830 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/6565af366/c0573df5412944a79ddee642d4b1e8eb/FLAGa340ad2e2 [2019-12-07 16:01:13,143 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:01:13,144 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2019-12-07 16:01:13,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/6565af366/c0573df5412944a79ddee642d4b1e8eb/FLAGa340ad2e2 [2019-12-07 16:01:13,158 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/data/6565af366/c0573df5412944a79ddee642d4b1e8eb [2019-12-07 16:01:13,160 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:01:13,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:01:13,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:13,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:01:13,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:01:13,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2818af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13, skipping insertion in model container [2019-12-07 16:01:13,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:01:13,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:01:13,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:13,291 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:01:13,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:01:13,314 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:01:13,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13 WrapperNode [2019-12-07 16:01:13,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:01:13,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:13,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:01:13,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:01:13,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:01:13,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:01:13,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:01:13,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:01:13,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... [2019-12-07 16:01:13,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:01:13,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:01:13,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:01:13,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:01:13,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 [2019-12-07 16:01:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:01:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:01:13,700 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:01:13,700 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 16:01:13,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:13 BoogieIcfgContainer [2019-12-07 16:01:13,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:01:13,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:01:13,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:01:13,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:01:13,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:01:13" (1/3) ... [2019-12-07 16:01:13,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401ffb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:13, skipping insertion in model container [2019-12-07 16:01:13,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:01:13" (2/3) ... [2019-12-07 16:01:13,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@401ffb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:01:13, skipping insertion in model container [2019-12-07 16:01:13,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:13" (3/3) ... [2019-12-07 16:01:13,705 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2019-12-07 16:01:13,712 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:01:13,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:01:13,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:01:13,738 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:01:13,738 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:01:13,738 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:01:13,738 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:01:13,738 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:01:13,739 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:01:13,739 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:01:13,739 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:01:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 16:01:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:01:13,751 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:01:13,752 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:01:13,752 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:01:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:01:13,755 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-12-07 16:01:13,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:01:13,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1812685134] [2019-12-07 16:01:13,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/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 [2019-12-07 16:01:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:01:13,856 WARN L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:01:13,859 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:01:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:13,909 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:01:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:01:14,138 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1812685134] [2019-12-07 16:01:14,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:01:14,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:01:14,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461208527] [2019-12-07 16:01:14,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:01:14,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:01:14,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:01:14,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:01:14,152 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2019-12-07 16:01:14,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:01:14,256 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 16:01:14,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:01:14,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 16:01:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:01:14,262 INFO L225 Difference]: With dead ends: 13 [2019-12-07 16:01:14,263 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:01:14,265 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:01:14,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:01:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:01:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:01:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:01:14,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 16:01:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:01:14,287 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:01:14,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:01:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:01:14,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:01:14,488 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:01:14,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:01:14,560 INFO L242 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-12-07 16:01:14,560 INFO L242 CegarLoopResult]: At program point L15(lines 6 16) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 16:01:14,560 INFO L246 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2019-12-07 16:01:14,561 INFO L246 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-12-07 16:01:14,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,568 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,569 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:01:14 BoogieIcfgContainer [2019-12-07 16:01:14,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:01:14,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:01:14,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:01:14,574 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:01:14,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:01:13" (3/4) ... [2019-12-07 16:01:14,578 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:01:14,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 16:01:14,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:01:14,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:01:14,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a7381d8c-6ada-4547-b2bf-df662111f907/bin/uautomizer/witness.graphml [2019-12-07 16:01:14,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:01:14,612 INFO L168 Benchmark]: Toolchain (without parser) took 1451.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -90.5 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,612 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:14,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,613 INFO L168 Benchmark]: Boogie Preprocessor took 16.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,614 INFO L168 Benchmark]: RCFGBuilder took 317.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,614 INFO L168 Benchmark]: TraceAbstraction took 872.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:01:14,614 INFO L168 Benchmark]: Witness Printer took 36.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:01:14,617 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.55 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 317.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 872.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 36.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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 - InvariantResult [Line: 6]: Loop Invariant [2019-12-07 16:01:14,621 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 4]: Loop Invariant [2019-12-07 16:01:14,622 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,622 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:01:14,623 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:01:14,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 7 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...