./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.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_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 b865bb4da04412be07ba7e2426d2224bb04a2953 .............................................................................................................................................................................................................................................................................................................................................................. 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_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c -s /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 b865bb4da04412be07ba7e2426d2224bb04a2953 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:28:10,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:28:10,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:28:10,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:28:10,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:28:10,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:28:10,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:28:10,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:28:10,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:28:10,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:28:10,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:28:10,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:28:10,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:28:10,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:28:10,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:28:10,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:28:10,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:28:10,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:28:10,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:28:10,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:28:10,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:28:10,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:28:10,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:28:10,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:28:10,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:28:10,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:28:10,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:28:10,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:28:10,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:28:10,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:28:10,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:28:10,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:28:10,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:28:10,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:28:10,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:28:10,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:28:10,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:28:10,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:28:10,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:28:10,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:28:10,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:28:10,145 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:28:10,155 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:28:10,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:28:10,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:28:10,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:28:10,156 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:28:10,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:28:10,156 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:28:10,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:28:10,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:28:10,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:28:10,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:28:10,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:28:10,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:28:10,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:28:10,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:28:10,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:28:10,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:28:10,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:28:10,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:28:10,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:28:10,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:28:10,159 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_13963773-f882-4c05-92fa-791b5b2f9824/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 -> b865bb4da04412be07ba7e2426d2224bb04a2953 [2019-12-07 18:28:10,258 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:28:10,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:28:10,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:28:10,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:28:10,272 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:28:10,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-12-07 18:28:10,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/e7af6efbe/f0d6953c0a954dbe918cea84be20d0b3/FLAGb3c1f968c [2019-12-07 18:28:10,747 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:28:10,747 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-12-07 18:28:10,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/e7af6efbe/f0d6953c0a954dbe918cea84be20d0b3/FLAGb3c1f968c [2019-12-07 18:28:10,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/e7af6efbe/f0d6953c0a954dbe918cea84be20d0b3 [2019-12-07 18:28:10,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:28:10,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:28:10,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:28:10,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:28:10,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:28:10,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,768 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 06:28:10, skipping insertion in model container [2019-12-07 18:28:10,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:28:10,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:28:10,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:28:10,924 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:28:10,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:28:10,955 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:28:10,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10 WrapperNode [2019-12-07 18:28:10,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:28:10,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:28:10,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:28:10,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:28:10,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:28:10,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:28:10,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:28:10,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:28:10,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:10,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:11,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:11,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... [2019-12-07 18:28:11,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:28:11,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:28:11,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:28:11,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:28:11,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 18:28:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:28:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:28:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:28:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:28:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:28:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:28:11,223 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:28:11,223 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 18:28:11,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:11 BoogieIcfgContainer [2019-12-07 18:28:11,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:28:11,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:28:11,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:28:11,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:28:11,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:28:10" (1/3) ... [2019-12-07 18:28:11,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b82327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:28:11, skipping insertion in model container [2019-12-07 18:28:11,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:10" (2/3) ... [2019-12-07 18:28:11,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b82327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:28:11, skipping insertion in model container [2019-12-07 18:28:11,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:11" (3/3) ... [2019-12-07 18:28:11,228 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2019-12-07 18:28:11,234 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:28:11,238 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:28:11,246 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:28:11,262 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:28:11,262 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:28:11,262 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:28:11,262 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:28:11,262 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:28:11,262 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:28:11,262 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:28:11,262 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:28:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-12-07 18:28:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:28:11,276 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:11,276 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:11,276 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:11,280 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-12-07 18:28:11,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:28:11,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450617897] [2019-12-07 18:28:11,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:28:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:11,358 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 18:28:11,359 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450617897] [2019-12-07 18:28:11,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:11,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:28:11,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43915754] [2019-12-07 18:28:11,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:28:11,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:28:11,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:28:11,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:28:11,373 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-12-07 18:28:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:11,385 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-12-07 18:28:11,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:28:11,386 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:28:11,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:11,392 INFO L225 Difference]: With dead ends: 54 [2019-12-07 18:28:11,393 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 18:28:11,395 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 18:28:11,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 18:28:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 18:28:11,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:28:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-12-07 18:28:11,417 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-12-07 18:28:11,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:11,418 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-12-07 18:28:11,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:28:11,418 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-12-07 18:28:11,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:28:11,419 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:11,419 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:11,419 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:11,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:11,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-12-07 18:28:11,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:28:11,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347005172] [2019-12-07 18:28:11,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:28:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:11,475 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 18:28:11,475 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347005172] [2019-12-07 18:28:11,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:11,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:28:11,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635207245] [2019-12-07 18:28:11,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:28:11,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:28:11,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:28:11,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:28:11,478 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-12-07 18:28:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:11,520 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-12-07 18:28:11,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:28:11,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 18:28:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:11,521 INFO L225 Difference]: With dead ends: 41 [2019-12-07 18:28:11,521 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 18:28:11,522 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:28:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 18:28:11,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-12-07 18:28:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:28:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 18:28:11,528 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-12-07 18:28:11,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:11,528 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 18:28:11,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:28:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 18:28:11,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:28:11,529 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:11,529 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:11,530 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:11,530 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-12-07 18:28:11,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:28:11,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096607346] [2019-12-07 18:28:11,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:28:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:11,574 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 18:28:11,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096607346] [2019-12-07 18:28:11,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:11,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:28:11,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982612934] [2019-12-07 18:28:11,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 18:28:11,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:28:11,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 18:28:11,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 18:28:11,575 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-12-07 18:28:11,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:11,604 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-12-07 18:28:11,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 18:28:11,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 18:28:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:11,605 INFO L225 Difference]: With dead ends: 43 [2019-12-07 18:28:11,605 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 18:28:11,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:28:11,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 18:28:11,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-12-07 18:28:11,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:28:11,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 18:28:11,609 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-12-07 18:28:11,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:11,609 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 18:28:11,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 18:28:11,609 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 18:28:11,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:28:11,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:11,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:11,610 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:11,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-12-07 18:28:11,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:28:11,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280282715] [2019-12-07 18:28:11,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:28:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:28:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:28:11,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:28:11,657 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:28:11,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:28:11 BoogieIcfgContainer [2019-12-07 18:28:11,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:28:11,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:28:11,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:28:11,675 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:28:11,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:11" (3/4) ... [2019-12-07 18:28:11,678 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:28:11,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:28:11,679 INFO L168 Benchmark]: Toolchain (without parser) took 916.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -61.0 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:11,680 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:28:11,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:11,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.55 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 18:28:11,681 INFO L168 Benchmark]: Boogie Preprocessor took 18.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:11,681 INFO L168 Benchmark]: RCFGBuilder took 220.78 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:11,681 INFO L168 Benchmark]: TraceAbstraction took 450.30 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:11,682 INFO L168 Benchmark]: Witness Printer took 2.94 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 18:28:11,684 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 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -137.1 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.55 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 18.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 220.78 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 450.30 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L18] __uint32_t msw, lsw; [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; [L63] double res = fmin_double(x, y); [L16] return x != x; [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 22 SDslu, 110 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 18:28:13,067 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-12-07 18:28:13,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:28:13,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:28:13,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:28:13,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:28:13,086 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:28:13,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:28:13,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:28:13,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:28:13,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:28:13,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:28:13,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:28:13,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:28:13,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:28:13,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:28:13,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:28:13,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:28:13,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:28:13,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:28:13,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:28:13,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:28:13,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:28:13,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:28:13,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:28:13,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:28:13,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:28:13,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:28:13,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:28:13,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:28:13,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:28:13,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:28:13,111 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:28:13,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:28:13,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:28:13,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:28:13,112 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:28:13,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:28:13,112 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:28:13,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:28:13,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:28:13,113 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:28:13,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:28:13,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:28:13,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:28:13,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:28:13,115 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_13963773-f882-4c05-92fa-791b5b2f9824/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 -> b865bb4da04412be07ba7e2426d2224bb04a2953 [2019-12-07 18:28:13,280 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:28:13,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:28:13,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:28:13,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:28:13,291 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:28:13,291 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-12-07 18:28:13,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/b729c03a8/8d9bd5544c3447a999728c6db30c3cdb/FLAGec0176597 [2019-12-07 18:28:13,645 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:28:13,646 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/sv-benchmarks/c/float-newlib/double_req_bl_1230.c [2019-12-07 18:28:13,650 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/b729c03a8/8d9bd5544c3447a999728c6db30c3cdb/FLAGec0176597 [2019-12-07 18:28:13,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/data/b729c03a8/8d9bd5544c3447a999728c6db30c3cdb [2019-12-07 18:28:13,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:28:13,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:28:13,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:28:13,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:28:13,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:28:13,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,666 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 06:28:13, skipping insertion in model container [2019-12-07 18:28:13,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:28:13,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:28:13,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:28:13,799 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:28:13,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:28:13,842 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:28:13,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13 WrapperNode [2019-12-07 18:28:13,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:28:13,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:28:13,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:28:13,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:28:13,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:28:13,904 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:28:13,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:28:13,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:28:13,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... [2019-12-07 18:28:13,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:28:13,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:28:13,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:28:13,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:28:13,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 18:28:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:28:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:28:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:28:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:28:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:28:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:28:14,193 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:28:14,194 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 18:28:14,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:14 BoogieIcfgContainer [2019-12-07 18:28:14,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:28:14,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:28:14,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:28:14,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:28:14,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:28:13" (1/3) ... [2019-12-07 18:28:14,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:28:14, skipping insertion in model container [2019-12-07 18:28:14,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:28:13" (2/3) ... [2019-12-07 18:28:14,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:28:14, skipping insertion in model container [2019-12-07 18:28:14,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:14" (3/3) ... [2019-12-07 18:28:14,199 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2019-12-07 18:28:14,205 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:28:14,209 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:28:14,218 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:28:14,232 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:28:14,232 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:28:14,232 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:28:14,233 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:28:14,233 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:28:14,233 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:28:14,233 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:28:14,233 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:28:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-12-07 18:28:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:28:14,246 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:14,247 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:14,247 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:14,251 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-12-07 18:28:14,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:14,258 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217165240] [2019-12-07 18:28:14,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 18:28:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:14,325 INFO L264 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:28:14,329 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:14,337 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 18:28:14,337 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:14,340 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 18:28:14,340 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217165240] [2019-12-07 18:28:14,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:14,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:28:14,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437628035] [2019-12-07 18:28:14,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:28:14,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:14,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:28:14,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:28:14,355 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-12-07 18:28:14,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:14,370 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-12-07 18:28:14,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:28:14,371 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:28:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:14,379 INFO L225 Difference]: With dead ends: 54 [2019-12-07 18:28:14,380 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 18:28:14,382 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 18:28:14,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 18:28:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-07 18:28:14,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:28:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-12-07 18:28:14,409 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-12-07 18:28:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:14,410 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-12-07 18:28:14,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:28:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-12-07 18:28:14,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:28:14,410 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:14,410 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:14,611 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:28:14,612 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:14,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:14,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-12-07 18:28:14,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:14,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644586934] [2019-12-07 18:28:14,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 18:28:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:14,728 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:28:14,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:14,747 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 18:28:14,747 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:14,759 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 18:28:14,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644586934] [2019-12-07 18:28:14,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:14,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:28:14,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758068180] [2019-12-07 18:28:14,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:28:14,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:14,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:28:14,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:14,762 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-12-07 18:28:14,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:14,831 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-12-07 18:28:14,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:28:14,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 18:28:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:14,833 INFO L225 Difference]: With dead ends: 52 [2019-12-07 18:28:14,833 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 18:28:14,833 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:28:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 18:28:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-12-07 18:28:14,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:28:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 18:28:14,838 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-12-07 18:28:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:14,838 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 18:28:14,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:28:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 18:28:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 18:28:14,839 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:14,839 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:15,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:28:15,040 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:15,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:15,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-12-07 18:28:15,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:15,044 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379002589] [2019-12-07 18:28:15,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/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 18:28:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:15,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:28:15,174 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:15,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:28:15,253 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 18:28:15,254 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:15,319 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 18:28:15,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379002589] [2019-12-07 18:28:15,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:15,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:28:15,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545100550] [2019-12-07 18:28:15,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:28:15,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:15,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:28:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:28:15,322 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 10 states. [2019-12-07 18:28:15,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:15,664 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-12-07 18:28:15,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:28:15,664 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2019-12-07 18:28:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:15,665 INFO L225 Difference]: With dead ends: 36 [2019-12-07 18:28:15,665 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:28:15,666 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:28:15,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:28:15,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-12-07 18:28:15,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 18:28:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-12-07 18:28:15,670 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-12-07 18:28:15,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:15,671 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-12-07 18:28:15,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:28:15,671 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-12-07 18:28:15,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 18:28:15,671 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:15,671 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:15,872 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:28:15,872 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:15,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:15,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-12-07 18:28:15,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:15,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148819205] [2019-12-07 18:28:15,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:28:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:15,973 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 18:28:15,974 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:15,982 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 18:28:15,982 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:15,993 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 18:28:15,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148819205] [2019-12-07 18:28:15,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:15,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:28:15,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878228518] [2019-12-07 18:28:15,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:28:15,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:15,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:28:15,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:28:15,994 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-12-07 18:28:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:16,049 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-12-07 18:28:16,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:28:16,049 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 18:28:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:16,050 INFO L225 Difference]: With dead ends: 52 [2019-12-07 18:28:16,050 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 18:28:16,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:28:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 18:28:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-12-07 18:28:16,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:28:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-12-07 18:28:16,054 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-12-07 18:28:16,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:16,054 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-12-07 18:28:16,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:28:16,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-12-07 18:28:16,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:28:16,055 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:16,055 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:16,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:28:16,256 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:16,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:16,257 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-12-07 18:28:16,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:16,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [804123477] [2019-12-07 18:28:16,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 18:28:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:16,360 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 18:28:16,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:16,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:28:16,457 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 18:28:16,457 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:16,564 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 18:28:16,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [804123477] [2019-12-07 18:28:16,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:16,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-12-07 18:28:16,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66755482] [2019-12-07 18:28:16,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 18:28:16,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:16,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 18:28:16,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 18:28:16,567 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 12 states. [2019-12-07 18:28:16,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:16,941 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-12-07 18:28:16,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:28:16,941 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-12-07 18:28:16,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:16,942 INFO L225 Difference]: With dead ends: 32 [2019-12-07 18:28:16,942 INFO L226 Difference]: Without dead ends: 23 [2019-12-07 18:28:16,942 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2019-12-07 18:28:16,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-07 18:28:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-12-07 18:28:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-12-07 18:28:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-12-07 18:28:16,945 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-12-07 18:28:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:16,945 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-12-07 18:28:16,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 18:28:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-12-07 18:28:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:28:16,946 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:28:16,946 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:28:17,146 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 18:28:17,147 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:28:17,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:28:17,148 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-12-07 18:28:17,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:28:17,149 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907178325] [2019-12-07 18:28:17,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 18:28:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:28:17,283 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:28:17,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:28:17,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:28:17,359 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 18:28:17,359 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:28:17,422 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 18:28:17,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907178325] [2019-12-07 18:28:17,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:28:17,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:28:17,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227746144] [2019-12-07 18:28:17,423 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:28:17,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:28:17,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:28:17,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:28:17,424 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 10 states. [2019-12-07 18:28:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:28:17,625 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-12-07 18:28:17,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:28:17,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-12-07 18:28:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:28:17,626 INFO L225 Difference]: With dead ends: 23 [2019-12-07 18:28:17,626 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:28:17,627 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 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 18:28:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:28:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:28:17,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:28:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:28:17,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-07 18:28:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:28:17,628 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:28:17,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:28:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:28:17,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:28:17,828 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 18:28:17,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:28:18,057 INFO L246 CegarLoopResult]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 66) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L242 CegarLoopResult]: At program point L20-2(lines 20 25) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point L20-3(lines 17 42) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L242 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmin_double_~y (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_fmin_double_#res| |ULTIMATE.start_fmin_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 18:28:18,058 INFO L246 CegarLoopResult]: For program point L20-5(lines 20 25) no Hoare annotation was computed. [2019-12-07 18:28:18,058 INFO L242 CegarLoopResult]: At program point L20-6(lines 20 25) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L20-7(lines 17 42) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L242 CegarLoopResult]: At program point L41(lines 17 42) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)) (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))) [2019-12-07 18:28:18,059 INFO L242 CegarLoopResult]: At program point L41-1(lines 17 42) the Hoare annotation is: (let ((.cse0 (not (fp.eq ULTIMATE.start_fmin_double_~y ULTIMATE.start_fmin_double_~y)))) (or (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) (and .cse0 (not (fp.eq ULTIMATE.start_fmin_double_~x ULTIMATE.start_fmin_double_~x))))) [2019-12-07 18:28:18,059 INFO L249 CegarLoopResult]: At program point L70(lines 53 71) the Hoare annotation is: true [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L37-1(lines 37 41) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:28:18,059 INFO L246 CegarLoopResult]: For program point L33-1(lines 33 41) no Hoare annotation was computed. [2019-12-07 18:28:18,060 INFO L246 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2019-12-07 18:28:18,060 INFO L246 CegarLoopResult]: For program point L50-2(line 50) no Hoare annotation was computed. [2019-12-07 18:28:18,060 INFO L242 CegarLoopResult]: At program point L50-3(lines 44 51) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmin_double_~y (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_fmin_double_#res| |ULTIMATE.start_fmin_double_#res|))) [2019-12-07 18:28:18,060 INFO L246 CegarLoopResult]: For program point L30(lines 30 41) no Hoare annotation was computed. [2019-12-07 18:28:18,060 INFO L246 CegarLoopResult]: For program point L30-1(lines 30 41) no Hoare annotation was computed. [2019-12-07 18:28:18,060 INFO L246 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-12-07 18:28:18,064 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,069 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,070 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,070 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:28:18 BoogieIcfgContainer [2019-12-07 18:28:18,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:28:18,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:28:18,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:28:18,074 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:28:18,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:28:14" (3/4) ... [2019-12-07 18:28:18,076 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:28:18,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-12-07 18:28:18,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 18:28:18,084 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:28:18,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) [2019-12-07 18:28:18,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-12-07 18:28:18,102 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(y, y) && !(0bv32 == \result)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x)) [2019-12-07 18:28:18,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_13963773-f882-4c05-92fa-791b5b2f9824/bin/uautomizer/witness.graphml [2019-12-07 18:28:18,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:28:18,128 INFO L168 Benchmark]: Toolchain (without parser) took 4466.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.4 MB in the beginning and 866.3 MB in the end (delta: 86.0 MB). Peak memory consumption was 219.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,128 INFO L168 Benchmark]: CDTParser took 0.15 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 18:28:18,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.79 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,129 INFO L168 Benchmark]: Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,129 INFO L168 Benchmark]: RCFGBuilder took 266.72 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,129 INFO L168 Benchmark]: TraceAbstraction took 3878.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.2 MB in the end (delta: 223.7 MB). Peak memory consumption was 223.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,129 INFO L168 Benchmark]: Witness Printer took 53.02 ms. Allocated memory is still 1.2 GB. Free memory was 873.2 MB in the beginning and 866.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:28:18,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 180.79 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 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 60.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -192.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 266.72 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3878.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.2 MB in the end (delta: 223.7 MB). Peak memory consumption was 223.7 MB. Max. memory is 11.5 GB. * Witness Printer took 53.02 ms. Allocated memory is still 1.2 GB. Free memory was 873.2 MB in the beginning and 866.3 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] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 66]: 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: 44]: Loop Invariant [2019-12-07 18:28:18,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 16]: Loop Invariant [2019-12-07 18:28:18,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:28:18,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(y, y) && !(0bv32 == \result)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x)) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 182 SDtfs, 107 SDslu, 476 SDs, 0 SdLazy, 126 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 7 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 6 MinimizatonAttempts, 42 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 19 NumberOfFragments, 74 HoareAnnotationTreeSize, 7 FomulaSimplifications, 184 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 36 QuantifiedInterpolants, 8562 SizeOfPredicates, 32 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...