./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 01b6390e563edc58f3f7d1f239b082df891f9006 ..................................................................................................................................................................................................................................................................................................................................................................... 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/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c -s /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 01b6390e563edc58f3f7d1f239b082df891f9006 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:46,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:46,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:46,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:46,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:46,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:46,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:46,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:46,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:46,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:46,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:46,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:46,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:46,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:46,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:46,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:46,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:46,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:46,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:46,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:46,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:46,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:46,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:46,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:46,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:46,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:46,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:46,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:46,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:46,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:46,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:46,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:46,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:46,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:46,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:46,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:46,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:46,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:46,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:46,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:46,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:46,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:46,127 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:46,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:46,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:46,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:46,128 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:46,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:46,129 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:46,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:46,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:46,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:46,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:46,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:46,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:46,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:46,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:46,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:46,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:46,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:46,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:46,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:46,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:46,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:46,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:46,132 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/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 -> 01b6390e563edc58f3f7d1f239b082df891f9006 [2019-10-22 09:00:46,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:46,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:46,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:46,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:46,170 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:46,170 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 09:00:46,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/b74495f92/ed2aa4e0f7884af69cac24cf080bc550/FLAGec6f16f0c [2019-10-22 09:00:46,601 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:46,601 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 09:00:46,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/b74495f92/ed2aa4e0f7884af69cac24cf080bc550/FLAGec6f16f0c [2019-10-22 09:00:46,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/b74495f92/ed2aa4e0f7884af69cac24cf080bc550 [2019-10-22 09:00:46,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:46,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:46,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:46,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:46,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:46,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411f8c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46, skipping insertion in model container [2019-10-22 09:00:46,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,638 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:46,653 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:46,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:46,792 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:46,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:46,891 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:46,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46 WrapperNode [2019-10-22 09:00:46,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:46,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:46,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:46,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:46,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:46,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:46,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:46,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:46,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... [2019-10-22 09:00:46,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:46,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:46,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:46,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:46,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:00:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:47,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:47,252 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:47,252 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:00:47,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:47 BoogieIcfgContainer [2019-10-22 09:00:47,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:47,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:47,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:47,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:47,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:46" (1/3) ... [2019-10-22 09:00:47,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aef662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:47, skipping insertion in model container [2019-10-22 09:00:47,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:46" (2/3) ... [2019-10-22 09:00:47,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16aef662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:47, skipping insertion in model container [2019-10-22 09:00:47,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:47" (3/3) ... [2019-10-22 09:00:47,260 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-10-22 09:00:47,268 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:47,275 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:47,284 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:47,314 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:47,314 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:47,315 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:47,315 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:47,315 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:47,315 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:47,315 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:47,315 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:47,326 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 09:00:47,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:47,332 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:47,333 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:47,335 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:47,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:47,339 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 09:00:47,344 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:47,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812137923] [2019-10-22 09:00:47,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,345 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:47,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:47,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812137923] [2019-10-22 09:00:47,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:47,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:47,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145477039] [2019-10-22 09:00:47,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:47,444 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:47,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:47,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:47,455 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 09:00:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:47,469 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 09:00:47,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:47,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:00:47,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:47,478 INFO L225 Difference]: With dead ends: 54 [2019-10-22 09:00:47,478 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:00:47,481 INFO L600 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 [2019-10-22 09:00:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:00:47,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:00:47,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:00:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 09:00:47,506 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 09:00:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:47,507 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 09:00:47,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 09:00:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:00:47,507 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:47,508 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:47,508 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:47,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 09:00:47,508 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:47,509 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221989430] [2019-10-22 09:00:47,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,509 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:47,575 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221989430] [2019-10-22 09:00:47,575 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:47,575 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:47,575 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230990091] [2019-10-22 09:00:47,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:47,577 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:47,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:47,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:47,578 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 4 states. [2019-10-22 09:00:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:47,647 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-10-22 09:00:47,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:47,648 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 09:00:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:47,649 INFO L225 Difference]: With dead ends: 41 [2019-10-22 09:00:47,649 INFO L226 Difference]: Without dead ends: 36 [2019-10-22 09:00:47,649 INFO L600 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 [2019-10-22 09:00:47,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-10-22 09:00:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2019-10-22 09:00:47,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:00:47,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:00:47,654 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 09:00:47,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:47,655 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:00:47,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:00:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:00:47,656 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:47,656 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:47,656 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:47,656 INFO L82 PathProgramCache]: Analyzing trace with hash -555778251, now seen corresponding path program 1 times [2019-10-22 09:00:47,657 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:47,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632996236] [2019-10-22 09:00:47,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,657 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:47,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632996236] [2019-10-22 09:00:47,713 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:47,713 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:00:47,714 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881521758] [2019-10-22 09:00:47,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:00:47,714 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:47,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:00:47,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:00:47,715 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 4 states. [2019-10-22 09:00:47,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:47,755 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2019-10-22 09:00:47,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:00:47,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-10-22 09:00:47,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:47,756 INFO L225 Difference]: With dead ends: 43 [2019-10-22 09:00:47,757 INFO L226 Difference]: Without dead ends: 38 [2019-10-22 09:00:47,757 INFO L600 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 [2019-10-22 09:00:47,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-10-22 09:00:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-10-22 09:00:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:00:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:00:47,761 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2019-10-22 09:00:47,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:47,762 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:00:47,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:00:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:00:47,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:00:47,762 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:47,762 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:47,763 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:47,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 09:00:47,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:47,763 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621061984] [2019-10-22 09:00:47,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,764 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:47,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:47,830 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:47,830 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:47,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:47 BoogieIcfgContainer [2019-10-22 09:00:47,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:47,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:47,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:47,853 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:47,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:47" (3/4) ... [2019-10-22 09:00:47,857 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:47,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:47,859 INFO L168 Benchmark]: Toolchain (without parser) took 1236.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.2 MB in the beginning and 1.0 GB in the end (delta: -92.9 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:47,859 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:47,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:47,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:47,860 INFO L168 Benchmark]: Boogie Preprocessor took 28.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:47,861 INFO L168 Benchmark]: RCFGBuilder took 295.15 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:47,861 INFO L168 Benchmark]: TraceAbstraction took 598.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:47,862 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:47,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 951.2 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 295.15 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: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 598.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.84 ms. Allocated memory is still 1.2 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: 72]: 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 67. Possible FailurePath: [L67] double x = 0.0 / 0.0; [L68] double y = 0.0 / 0.0; [L27] __uint32_t msw, lsw; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (msw) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lsw) = ew_u.parts.lsw [L36-L37] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L39-L40] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L42-L43] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L46-L47] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L50] return 0; [L55] COND TRUE __fpclassify_double(x) == 0 [L56] return y; [L69] double res = fmax_double(x, y); [L16] return x != x; [L71] COND TRUE !isnan_double(res) [L72] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, 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 0.1.24-cad4683 [2019-10-22 09:00:49,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:49,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:49,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:49,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:49,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:49,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:49,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:49,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:49,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:49,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:49,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:49,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:49,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:49,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:49,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:49,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:49,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:49,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:49,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:49,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:49,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:49,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:49,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:49,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:49,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:49,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:49,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:49,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:49,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:49,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:49,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:49,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:49,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:49,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:49,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:49,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:49,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:49,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:49,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:49,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:49,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:49,939 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:49,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:49,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:49,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:49,940 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:49,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:49,940 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:49,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:49,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:49,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:49,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:49,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:49,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:49,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:49,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:49,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:49,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:49,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:49,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:49,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:49,944 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/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 -> 01b6390e563edc58f3f7d1f239b082df891f9006 [2019-10-22 09:00:49,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:49,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:49,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:49,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:49,987 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:49,988 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 09:00:50,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/df7769141/63b38655da3b4ad6a2d502b82383b148/FLAGc670d8bae [2019-10-22 09:00:50,438 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:50,439 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/sv-benchmarks/c/float-newlib/double_req_bl_1250.c [2019-10-22 09:00:50,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/df7769141/63b38655da3b4ad6a2d502b82383b148/FLAGc670d8bae [2019-10-22 09:00:50,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/data/df7769141/63b38655da3b4ad6a2d502b82383b148 [2019-10-22 09:00:50,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:50,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:50,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:50,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:50,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:50,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b4998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50, skipping insertion in model container [2019-10-22 09:00:50,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,472 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:50,483 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:50,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:50,628 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:50,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:50,728 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:50,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50 WrapperNode [2019-10-22 09:00:50,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:50,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:50,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:50,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:50,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:50,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:50,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:50,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:50,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... [2019-10-22 09:00:50,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:50,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:50,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:50,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:50,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-10-22 09:00:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:00:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:50,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:50,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:51,131 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:51,131 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:00:51,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:51 BoogieIcfgContainer [2019-10-22 09:00:51,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:51,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:51,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:51,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:51,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:50" (1/3) ... [2019-10-22 09:00:51,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b01628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:51, skipping insertion in model container [2019-10-22 09:00:51,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:50" (2/3) ... [2019-10-22 09:00:51,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b01628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:51, skipping insertion in model container [2019-10-22 09:00:51,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:51" (3/3) ... [2019-10-22 09:00:51,156 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1250.c [2019-10-22 09:00:51,164 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:51,178 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:51,206 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:51,234 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:51,234 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:51,235 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:51,235 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:51,235 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:51,235 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:51,235 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:51,235 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-22 09:00:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:51,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:51,254 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:51,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:51,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash -958093107, now seen corresponding path program 1 times [2019-10-22 09:00:51,267 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:51,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558473897] [2019-10-22 09:00:51,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:51,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:00:51,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:51,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,350 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,354 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558473897] [2019-10-22 09:00:51,355 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:51,355 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:00:51,355 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472791982] [2019-10-22 09:00:51,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:51,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:51,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:51,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:51,373 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-22 09:00:51,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:51,391 INFO L93 Difference]: Finished difference Result 54 states and 84 transitions. [2019-10-22 09:00:51,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:51,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:00:51,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:51,402 INFO L225 Difference]: With dead ends: 54 [2019-10-22 09:00:51,402 INFO L226 Difference]: Without dead ends: 25 [2019-10-22 09:00:51,405 INFO L600 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 [2019-10-22 09:00:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-22 09:00:51,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-10-22 09:00:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:00:51,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2019-10-22 09:00:51,433 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 35 transitions. Word has length 10 [2019-10-22 09:00:51,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:51,433 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 35 transitions. [2019-10-22 09:00:51,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:51,433 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2019-10-22 09:00:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 09:00:51,434 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:51,434 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:51,637 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:00:51,638 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:51,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1001566992, now seen corresponding path program 1 times [2019-10-22 09:00:51,639 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:51,639 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [434738378] [2019-10-22 09:00:51,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:51,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:00:51,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,747 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:51,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:51,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [434738378] [2019-10-22 09:00:51,765 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:51,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 09:00:51,765 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578327837] [2019-10-22 09:00:51,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:51,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:51,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:51,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:51,775 INFO L87 Difference]: Start difference. First operand 25 states and 35 transitions. Second operand 6 states. [2019-10-22 09:00:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:51,875 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-10-22 09:00:51,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:51,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 09:00:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:51,877 INFO L225 Difference]: With dead ends: 52 [2019-10-22 09:00:51,877 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 09:00:51,878 INFO L600 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 [2019-10-22 09:00:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 09:00:51,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 09:00:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:00:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-10-22 09:00:51,883 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 11 [2019-10-22 09:00:51,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:51,884 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-10-22 09:00:51,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:51,884 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 09:00:51,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 09:00:51,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:51,885 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:52,085 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:00:52,086 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:52,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:52,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1219229111, now seen corresponding path program 1 times [2019-10-22 09:00:52,087 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:52,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610588375] [2019-10-22 09:00:52,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:52,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:00:52,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:52,254 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:52,287 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610588375] [2019-10-22 09:00:52,287 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:52,287 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 09:00:52,288 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129028130] [2019-10-22 09:00:52,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:52,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:52,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:52,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:52,289 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2019-10-22 09:00:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:52,375 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-10-22 09:00:52,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:52,376 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-10-22 09:00:52,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:52,377 INFO L225 Difference]: With dead ends: 36 [2019-10-22 09:00:52,377 INFO L226 Difference]: Without dead ends: 27 [2019-10-22 09:00:52,377 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:52,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-10-22 09:00:52,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-10-22 09:00:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-10-22 09:00:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-10-22 09:00:52,381 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 33 transitions. Word has length 14 [2019-10-22 09:00:52,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:52,382 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-10-22 09:00:52,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:52,382 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2019-10-22 09:00:52,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 09:00:52,383 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:52,383 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:52,583 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:00:52,584 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:52,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:52,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1012428811, now seen corresponding path program 1 times [2019-10-22 09:00:52,584 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:52,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265147995] [2019-10-22 09:00:52,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:52,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-22 09:00:52,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:52,689 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:52,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265147995] [2019-10-22 09:00:52,706 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:52,706 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 09:00:52,706 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90278085] [2019-10-22 09:00:52,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:00:52,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:52,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:00:52,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:00:52,707 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. Second operand 6 states. [2019-10-22 09:00:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:52,786 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2019-10-22 09:00:52,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:52,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-10-22 09:00:52,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:52,789 INFO L225 Difference]: With dead ends: 52 [2019-10-22 09:00:52,790 INFO L226 Difference]: Without dead ends: 47 [2019-10-22 09:00:52,790 INFO L600 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 [2019-10-22 09:00:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-10-22 09:00:52,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 27. [2019-10-22 09:00:52,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 09:00:52,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2019-10-22 09:00:52,800 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 16 [2019-10-22 09:00:52,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:52,801 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-10-22 09:00:52,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:00:52,801 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2019-10-22 09:00:52,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 09:00:52,801 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:52,802 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:53,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 09:00:53,002 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:53,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:53,003 INFO L82 PathProgramCache]: Analyzing trace with hash -356841937, now seen corresponding path program 1 times [2019-10-22 09:00:53,003 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:53,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782450909] [2019-10-22 09:00:53,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:53,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 09:00:53,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:53,146 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:53,183 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782450909] [2019-10-22 09:00:53,183 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:53,183 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-10-22 09:00:53,184 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179731615] [2019-10-22 09:00:53,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-22 09:00:53,184 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:53,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-22 09:00:53,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:00:53,185 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand 9 states. [2019-10-22 09:00:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:53,297 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2019-10-22 09:00:53,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:00:53,298 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-10-22 09:00:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:53,299 INFO L225 Difference]: With dead ends: 32 [2019-10-22 09:00:53,299 INFO L226 Difference]: Without dead ends: 23 [2019-10-22 09:00:53,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-10-22 09:00:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-22 09:00:53,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-22 09:00:53,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-22 09:00:53,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-22 09:00:53,303 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2019-10-22 09:00:53,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:53,303 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-22 09:00:53,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-22 09:00:53,303 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-22 09:00:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 09:00:53,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:53,304 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:53,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-10-22 09:00:53,505 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:53,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:53,505 INFO L82 PathProgramCache]: Analyzing trace with hash -208376157, now seen corresponding path program 1 times [2019-10-22 09:00:53,506 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:00:53,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [203866755] [2019-10-22 09:00:53,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/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 [2019-10-22 09:00:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:53,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:00:53,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:00:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:53,621 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:00:53,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:53,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [203866755] [2019-10-22 09:00:53,651 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:53,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-10-22 09:00:53,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380270750] [2019-10-22 09:00:53,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:00:53,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:00:53,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:00:53,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:00:53,653 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 8 states. [2019-10-22 09:00:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:53,714 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-10-22 09:00:53,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:00:53,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-10-22 09:00:53,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:53,714 INFO L225 Difference]: With dead ends: 23 [2019-10-22 09:00:53,714 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:00:53,715 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:00:53,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:00:53,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:00:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:00:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:00:53,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-22 09:00:53,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:53,716 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:00:53,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:00:53,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:00:53,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:00:53,917 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-10-22 09:00:53,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:00:54,058 INFO L443 ceAbstractionStarter]: For program point L60(line 60) no Hoare annotation was computed. [2019-10-22 09:00:54,058 INFO L443 ceAbstractionStarter]: For program point L60-2(line 60) no Hoare annotation was computed. [2019-10-22 09:00:54,058 INFO L439 ceAbstractionStarter]: At program point L60-3(lines 53 61) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~y .cse0) (= |ULTIMATE.start_fmax_double_#res| .cse0))) [2019-10-22 09:00:54,058 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 58) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L439 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~y .cse0) (= |ULTIMATE.start_fmax_double_#res| .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))) [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L439 ceAbstractionStarter]: At program point L29-2(lines 29 34) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point L29-3(lines 26 51) no Hoare annotation was computed. [2019-10-22 09:00:54,059 INFO L443 ceAbstractionStarter]: For program point L29-5(lines 29 34) no Hoare annotation was computed. [2019-10-22 09:00:54,060 INFO L439 ceAbstractionStarter]: At program point L29-6(lines 29 34) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 09:00:54,060 INFO L443 ceAbstractionStarter]: For program point L29-7(lines 26 51) no Hoare annotation was computed. [2019-10-22 09:00:54,060 INFO L439 ceAbstractionStarter]: At program point L50(lines 26 51) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y .cse0))) [2019-10-22 09:00:54,060 INFO L439 ceAbstractionStarter]: At program point L50-1(lines 26 51) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (let ((.cse0 (= ULTIMATE.start_fmax_double_~y .cse1))) (or (and (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) .cse0) (and (= ULTIMATE.start_fmax_double_~x .cse1) .cse0)))) [2019-10-22 09:00:54,060 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2019-10-22 09:00:54,060 INFO L443 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2019-10-22 09:00:54,060 INFO L446 ceAbstractionStarter]: At program point L75(lines 63 76) the Hoare annotation is: true [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 50) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 42 50) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 74) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 50) no Hoare annotation was computed. [2019-10-22 09:00:54,061 INFO L443 ceAbstractionStarter]: For program point L39-1(lines 39 50) no Hoare annotation was computed. [2019-10-22 09:00:54,068 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,069 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,073 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,073 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,075 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:54 BoogieIcfgContainer [2019-10-22 09:00:54,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:54,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:54,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:54,084 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:54,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:51" (3/4) ... [2019-10-22 09:00:54,088 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:00:54,099 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-10-22 09:00:54,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:00:54,100 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 09:00:54,126 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-10-22 09:00:54,126 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result [2019-10-22 09:00:54,127 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0bv32 == \result) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) || (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-10-22 09:00:54,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_32ed42d2-b45c-4fe0-9228-41a97f344986/bin/uautomizer/witness.graphml [2019-10-22 09:00:54,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:54,155 INFO L168 Benchmark]: Toolchain (without parser) took 3695.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 944.9 MB in the end (delta: 737.2 kB). Peak memory consumption was 170.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:54,156 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:54,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -219.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:54,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:54,157 INFO L168 Benchmark]: Boogie Preprocessor took 33.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:54,157 INFO L168 Benchmark]: RCFGBuilder took 319.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:54,158 INFO L168 Benchmark]: TraceAbstraction took 2950.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.9 MB in the end (delta: 187.3 MB). Peak memory consumption was 187.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:54,158 INFO L168 Benchmark]: Witness Printer took 69.85 ms. Allocated memory is still 1.2 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:54,161 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -219.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 319.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2950.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.9 MB in the end (delta: 187.3 MB). Peak memory consumption was 187.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.85 ms. Allocated memory is still 1.2 GB. Free memory is still 944.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 16]: Loop Invariant [2019-10-22 09:00:54,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,165 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,166 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2019-10-22 09:00:54,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 09:00:54,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(0bv32 == \result) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) || (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 29]: Loop Invariant [2019-10-22 09:00:54,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 26]: Loop Invariant [2019-10-22 09:00:54,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 53]: Loop Invariant [2019-10-22 09:00:54,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:00:54,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 182 SDtfs, 106 SDslu, 504 SDs, 0 SdLazy, 131 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s 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, 94 HoareAnnotationTreeSize, 7 FomulaSimplifications, 273 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 9102 SizeOfPredicates, 26 NumberOfNonLiveVariables, 321 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...