./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.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_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ...................................................................................................................................................................................................................................................................................... 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_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 .......................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:38:08,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:38:08,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:38:08,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:38:08,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:38:08,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:38:08,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:38:08,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:38:08,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:38:08,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:38:08,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:38:08,637 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:38:08,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:38:08,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:38:08,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:38:08,639 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:38:08,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:38:08,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:38:08,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:38:08,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:38:08,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:38:08,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:38:08,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:38:08,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:38:08,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:38:08,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:38:08,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:38:08,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:38:08,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:38:08,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:38:08,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:38:08,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:38:08,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:38:08,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:38:08,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:38:08,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:38:08,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:38:08,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:38:08,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:38:08,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:38:08,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:38:08,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:38:08,668 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:38:08,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:38:08,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:38:08,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:38:08,669 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:38:08,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:38:08,670 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:38:08,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:38:08,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:38:08,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:38:08,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:38:08,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:38:08,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:38:08,672 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:38:08,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:38:08,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:38:08,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:38:08,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:38:08,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:38:08,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:38:08,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:38:08,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:38:08,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:38:08,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:38:08,674 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_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-12-07 15:38:08,776 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:38:08,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:38:08,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:38:08,790 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:38:08,790 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:38:08,790 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-12-07 15:38:08,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/20784fe61/a5eb939e56a1419a87cef16813c7cab9/FLAG671c72437 [2019-12-07 15:38:09,149 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:38:09,149 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-12-07 15:38:09,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/20784fe61/a5eb939e56a1419a87cef16813c7cab9/FLAG671c72437 [2019-12-07 15:38:09,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/20784fe61/a5eb939e56a1419a87cef16813c7cab9 [2019-12-07 15:38:09,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:38:09,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:38:09,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:09,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:38:09,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:38:09,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408e5454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09, skipping insertion in model container [2019-12-07 15:38:09,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:38:09,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:38:09,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:09,349 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:38:09,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:09,384 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:38:09,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09 WrapperNode [2019-12-07 15:38:09,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:09,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:09,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:38:09,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:38:09,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:09,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:38:09,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:38:09,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:38:09,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... [2019-12-07 15:38:09,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:38:09,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:38:09,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:38:09,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:38:09,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 15:38:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:38:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:38:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:38:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:38:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:38:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:38:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:38:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:38:09,633 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:38:09,633 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 15:38:09,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:09 BoogieIcfgContainer [2019-12-07 15:38:09,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:38:09,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:38:09,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:38:09,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:38:09,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:38:09" (1/3) ... [2019-12-07 15:38:09,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582a7d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:09, skipping insertion in model container [2019-12-07 15:38:09,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:09" (2/3) ... [2019-12-07 15:38:09,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582a7d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:09, skipping insertion in model container [2019-12-07 15:38:09,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:09" (3/3) ... [2019-12-07 15:38:09,640 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-12-07 15:38:09,647 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:38:09,651 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:38:09,658 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:38:09,672 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:38:09,672 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:38:09,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:38:09,672 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:38:09,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:38:09,672 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:38:09,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:38:09,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:38:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-12-07 15:38:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:38:09,686 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:09,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:09,686 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:09,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-12-07 15:38:09,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:38:09,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100627939] [2019-12-07 15:38:09,697 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:09,776 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 15:38:09,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100627939] [2019-12-07 15:38:09,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:38:09,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:38:09,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109015113] [2019-12-07 15:38:09,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:38:09,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:38:09,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:38:09,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:38:09,790 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-12-07 15:38:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:09,802 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-12-07 15:38:09,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:38:09,803 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 15:38:09,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:09,811 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:38:09,812 INFO L226 Difference]: Without dead ends: 23 [2019-12-07 15:38:09,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:38:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-07 15:38:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 15:38:09,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 15:38:09,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-12-07 15:38:09,838 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-12-07 15:38:09,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:09,838 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-12-07 15:38:09,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:38:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-12-07 15:38:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:38:09,839 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:09,839 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:09,839 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:09,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:09,839 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-12-07 15:38:09,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:38:09,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914008785] [2019-12-07 15:38:09,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:09,929 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:38:09,929 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:38:09,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:38:09 BoogieIcfgContainer [2019-12-07 15:38:09,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:38:09,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:38:09,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:38:09,948 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:38:09,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:09" (3/4) ... [2019-12-07 15:38:09,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:38:09,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:38:09,952 INFO L168 Benchmark]: Toolchain (without parser) took 785.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:09,953 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:09,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:09,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.94 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. [2019-12-07 15:38:09,954 INFO L168 Benchmark]: Boogie Preprocessor took 21.87 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:09,954 INFO L168 Benchmark]: RCFGBuilder took 197.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:09,955 INFO L168 Benchmark]: TraceAbstraction took 312.96 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: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:09,955 INFO L168 Benchmark]: Witness Printer took 2.94 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. [2019-12-07 15:38:09,958 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 939.6 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.94 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. * Boogie Preprocessor took 21.87 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 312.96 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: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 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: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L24] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L44] COND FALSE !(!((ix) < 0x7f800000L)) [L47] return x; VAL [huge_floor=1000000000000000000000000000000] [L67] float res = floor_float(x); [L58] return x != x; VAL [huge_floor=1000000000000000000000000000000] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 15:38:11,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:38:11,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:38:11,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:38:11,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:38:11,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:38:11,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:38:11,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:38:11,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:38:11,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:38:11,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:38:11,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:38:11,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:38:11,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:38:11,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:38:11,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:38:11,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:38:11,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:38:11,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:38:11,308 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:38:11,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:38:11,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:38:11,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:38:11,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:38:11,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:38:11,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:38:11,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:38:11,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:38:11,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:38:11,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:38:11,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:38:11,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:38:11,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:38:11,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:38:11,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:38:11,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:38:11,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:38:11,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:38:11,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:38:11,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:38:11,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:38:11,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:38:11,329 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:38:11,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:38:11,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:38:11,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:38:11,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:38:11,332 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:38:11,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:38:11,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:38:11,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:38:11,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:38:11,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:38:11,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:38:11,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:38:11,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:38:11,335 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_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2019-12-07 15:38:11,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:38:11,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:38:11,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:38:11,523 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:38:11,524 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:38:11,524 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-12-07 15:38:11,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/abf90f5b3/b06e7a72211c48b9aadd8b88b0f61b0d/FLAG70e8dbaec [2019-12-07 15:38:12,013 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:38:12,014 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2019-12-07 15:38:12,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/abf90f5b3/b06e7a72211c48b9aadd8b88b0f61b0d/FLAG70e8dbaec [2019-12-07 15:38:12,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/data/abf90f5b3/b06e7a72211c48b9aadd8b88b0f61b0d [2019-12-07 15:38:12,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:38:12,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:38:12,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:12,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:38:12,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:38:12,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12, skipping insertion in model container [2019-12-07 15:38:12,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:38:12,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:38:12,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:12,166 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:38:12,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:12,200 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:38:12,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12 WrapperNode [2019-12-07 15:38:12,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:12,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:12,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:38:12,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:38:12,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,214 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:12,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:38:12,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:38:12,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:38:12,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... [2019-12-07 15:38:12,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:38:12,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:38:12,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:38:12,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:38:12,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 15:38:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:38:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 15:38:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:38:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:38:12,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:38:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 15:38:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:38:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:38:12,751 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:38:12,751 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 15:38:12,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:12 BoogieIcfgContainer [2019-12-07 15:38:12,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:38:12,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:38:12,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:38:12,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:38:12,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:38:12" (1/3) ... [2019-12-07 15:38:12,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1c8df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:12, skipping insertion in model container [2019-12-07 15:38:12,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:12" (2/3) ... [2019-12-07 15:38:12,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1c8df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:38:12, skipping insertion in model container [2019-12-07 15:38:12,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:12" (3/3) ... [2019-12-07 15:38:12,756 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2019-12-07 15:38:12,762 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:38:12,767 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:38:12,774 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:38:12,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:38:12,788 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:38:12,788 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:38:12,788 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:38:12,788 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:38:12,788 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:38:12,788 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:38:12,788 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:38:12,797 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-12-07 15:38:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:38:12,801 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:12,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:12,802 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:12,806 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2019-12-07 15:38:12,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:38:12,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278298668] [2019-12-07 15:38:12,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/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 15:38:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:12,888 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:38:12,891 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:12,900 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 15:38:12,900 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:38:12,902 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 15:38:12,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278298668] [2019-12-07 15:38:12,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:38:12,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:38:12,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945491486] [2019-12-07 15:38:12,907 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:38:12,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:38:12,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:38:12,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:38:12,917 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-12-07 15:38:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:12,928 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2019-12-07 15:38:12,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:38:12,929 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 15:38:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:12,936 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:38:12,936 INFO L226 Difference]: Without dead ends: 23 [2019-12-07 15:38:12,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:38:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-07 15:38:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 15:38:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 15:38:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-12-07 15:38:12,960 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2019-12-07 15:38:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:12,961 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-12-07 15:38:12,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:38:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2019-12-07 15:38:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:38:12,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:12,961 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:13,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:38:13,162 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:13,163 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2019-12-07 15:38:13,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:38:13,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259799901] [2019-12-07 15:38:13,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:38:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:13,258 INFO L264 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 15:38:13,259 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:13,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 15:38:13,332 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 15:38:13,332 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:38:13,387 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 15:38:13,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259799901] [2019-12-07 15:38:13,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:38:13,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:38:13,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934633654] [2019-12-07 15:38:13,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:38:13,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:38:13,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:38:13,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:38:13,390 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 10 states. [2019-12-07 15:38:13,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:13,781 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-12-07 15:38:13,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:38:13,781 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 15:38:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:13,782 INFO L225 Difference]: With dead ends: 34 [2019-12-07 15:38:13,782 INFO L226 Difference]: Without dead ends: 18 [2019-12-07 15:38:13,783 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:38:13,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-07 15:38:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-07 15:38:13,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 15:38:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-12-07 15:38:13,785 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2019-12-07 15:38:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:13,785 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-12-07 15:38:13,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:38:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-12-07 15:38:13,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 15:38:13,786 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:38:13,786 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:38:13,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:38:13,987 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:38:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:13,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2019-12-07 15:38:13,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:38:13,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758164630] [2019-12-07 15:38:13,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:38:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:14,113 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:38:14,115 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:14,171 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 15:38:14,171 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:38:14,253 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 15:38:14,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758164630] [2019-12-07 15:38:14,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:38:14,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 15:38:14,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556440079] [2019-12-07 15:38:14,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:38:14,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:38:14,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:38:14,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:38:14,255 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2019-12-07 15:38:14,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:38:14,347 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-12-07 15:38:14,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:38:14,348 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-12-07 15:38:14,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:38:14,348 INFO L225 Difference]: With dead ends: 18 [2019-12-07 15:38:14,348 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:38:14,349 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:38:14,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:38:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:38:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:38:14,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:38:14,349 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 15:38:14,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:38:14,350 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:38:14,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:38:14,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:38:14,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:38:14,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:38:14,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:38:14,643 INFO L246 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point L44(lines 44 47) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point L24(lines 24 48) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2019-12-07 15:38:14,644 INFO L246 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L242 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_floor_float_#res| |ULTIMATE.start_floor_float_#res|))) [2019-12-07 15:38:14,645 INFO L246 CegarLoopResult]: For program point L25(lines 25 42) no Hoare annotation was computed. [2019-12-07 15:38:14,645 INFO L242 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (not (fp.eq |ULTIMATE.start_floor_float_#res| |ULTIMATE.start_floor_float_#res|))) [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2019-12-07 15:38:14,646 INFO L242 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2019-12-07 15:38:14,646 INFO L249 CegarLoopResult]: At program point L75(lines 60 76) the Hoare annotation is: true [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2019-12-07 15:38:14,646 INFO L246 CegarLoopResult]: For program point L26(lines 26 32) no Hoare annotation was computed. [2019-12-07 15:38:14,647 INFO L246 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2019-12-07 15:38:14,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:38:14 BoogieIcfgContainer [2019-12-07 15:38:14,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:38:14,660 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:38:14,660 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:38:14,660 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:38:14,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:12" (3/4) ... [2019-12-07 15:38:14,663 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:38:14,670 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 15:38:14,670 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 15:38:14,671 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:38:14,689 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-12-07 15:38:14,689 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~FLOAT(\result, \result) [2019-12-07 15:38:14,690 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) [2019-12-07 15:38:14,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_212b9ea5-f5a1-4800-94ca-250c46d96a3c/bin/uautomizer/witness.graphml [2019-12-07 15:38:14,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:38:14,707 INFO L168 Benchmark]: Toolchain (without parser) took 2676.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 953.7 MB in the beginning and 966.0 MB in the end (delta: -12.2 MB). Peak memory consumption was 103.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,707 INFO L168 Benchmark]: CDTParser took 0.18 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 15:38:14,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,708 INFO L168 Benchmark]: Boogie Preprocessor took 25.63 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 15:38:14,708 INFO L168 Benchmark]: RCFGBuilder took 461.05 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,709 INFO L168 Benchmark]: TraceAbstraction took 1906.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 111.6 MB). Peak memory consumption was 111.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,709 INFO L168 Benchmark]: Witness Printer took 45.91 ms. Allocated memory is still 1.1 GB. Free memory was 972.9 MB in the beginning and 966.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:14,711 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 169.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -167.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.63 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 461.05 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1906.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 111.6 MB). Peak memory consumption was 111.6 MB. Max. memory is 11.5 GB. * Witness Printer took 45.91 ms. Allocated memory is still 1.1 GB. Free memory was 972.9 MB in the beginning and 966.0 MB 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant [2019-12-07 15:38:14,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 58]: Loop Invariant [2019-12-07 15:38:14,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2019-12-07 15:38:14,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:38:14,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~FLOAT(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 18 SDslu, 65 SDs, 0 SdLazy, 46 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 35 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 11 QuantifiedInterpolants, 2730 SizeOfPredicates, 19 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...