./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/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 cc541d75f5affce4b825454cfd79356341e493a9 ........................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/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 cc541d75f5affce4b825454cfd79356341e493a9 ............................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:24:07,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:24:07,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:24:07,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:24:07,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:24:07,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:24:07,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:24:07,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:24:07,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:24:07,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:24:07,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:24:07,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:24:07,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:24:07,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:24:07,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:24:07,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:24:07,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:24:07,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:24:07,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:24:07,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:24:07,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:24:07,986 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:24:07,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:24:07,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:24:07,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:24:07,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:24:07,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:24:07,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:24:07,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:24:07,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:24:07,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:24:07,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:24:07,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:24:07,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:24:07,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:24:07,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:24:07,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:24:07,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:24:07,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:24:07,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:24:07,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:24:07,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:24:08,004 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:24:08,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:24:08,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:24:08,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:24:08,005 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:24:08,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:24:08,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:24:08,007 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:24:08,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:24:08,007 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:24:08,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:24:08,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:24:08,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:08,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:24:08,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:24:08,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:24:08,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-12-07 13:24:08,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:24:08,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:24:08,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:24:08,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:24:08,120 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:24:08,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 13:24:08,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/a3c3fed93/c36b257a6c6d45048ba3e6601a00d431/FLAGca178c94a [2019-12-07 13:24:08,584 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:24:08,584 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 13:24:08,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/a3c3fed93/c36b257a6c6d45048ba3e6601a00d431/FLAGca178c94a [2019-12-07 13:24:08,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/a3c3fed93/c36b257a6c6d45048ba3e6601a00d431 [2019-12-07 13:24:08,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:24:08,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:24:08,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:08,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:24:08,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:24:08,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcd8b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08, skipping insertion in model container [2019-12-07 13:24:08,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:24:08,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:08,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:08,800 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:24:08,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:08,845 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:24:08,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08 WrapperNode [2019-12-07 13:24:08,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:08,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:08,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:24:08,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:24:08,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:08,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:24:08,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:24:08,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:24:08,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... [2019-12-07 13:24:08,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:24:08,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:24:08,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:24:08,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:24:08,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:24:08,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:24:08,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 13:24:08,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:24:09,227 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:24:09,228 INFO L287 CfgBuilder]: Removed 26 assume(true) statements. [2019-12-07 13:24:09,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:09 BoogieIcfgContainer [2019-12-07 13:24:09,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:24:09,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:24:09,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:24:09,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:24:09,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:24:08" (1/3) ... [2019-12-07 13:24:09,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bc662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:09, skipping insertion in model container [2019-12-07 13:24:09,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:08" (2/3) ... [2019-12-07 13:24:09,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bc662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:09, skipping insertion in model container [2019-12-07 13:24:09,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:09" (3/3) ... [2019-12-07 13:24:09,235 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-12-07 13:24:09,243 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:24:09,249 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:24:09,259 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:24:09,274 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:24:09,274 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:24:09,274 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:24:09,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:24:09,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:24:09,274 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:24:09,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:24:09,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:24:09,284 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-12-07 13:24:09,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 13:24:09,289 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:09,289 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:09,289 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:09,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:09,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2019-12-07 13:24:09,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:09,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991601517] [2019-12-07 13:24:09,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:09,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:09,385 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991601517] [2019-12-07 13:24:09,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:09,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:24:09,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147246366] [2019-12-07 13:24:09,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:24:09,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:09,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:24:09,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:09,399 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-12-07 13:24:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:09,413 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2019-12-07 13:24:09,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:24:09,414 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 13:24:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:09,421 INFO L225 Difference]: With dead ends: 95 [2019-12-07 13:24:09,421 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 13:24:09,423 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 13:24:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 13:24:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 13:24:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2019-12-07 13:24:09,447 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2019-12-07 13:24:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:09,448 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2019-12-07 13:24:09,448 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:24:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2019-12-07 13:24:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 13:24:09,448 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:09,449 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:09,449 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:09,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2019-12-07 13:24:09,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:09,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628997734] [2019-12-07 13:24:09,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:09,485 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628997734] [2019-12-07 13:24:09,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:09,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:24:09,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487759039] [2019-12-07 13:24:09,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:24:09,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:24:09,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:24:09,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:24:09,487 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2019-12-07 13:24:09,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:09,501 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-12-07 13:24:09,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:24:09,502 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 13:24:09,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:09,503 INFO L225 Difference]: With dead ends: 83 [2019-12-07 13:24:09,503 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 13:24:09,504 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:24:09,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 13:24:09,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 13:24:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 13:24:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2019-12-07 13:24:09,509 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2019-12-07 13:24:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:09,510 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2019-12-07 13:24:09,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:24:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2019-12-07 13:24:09,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:24:09,511 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:09,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:09,511 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:09,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:09,511 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2019-12-07 13:24:09,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:24:09,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897028613] [2019-12-07 13:24:09,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:24:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:09,606 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:24:09,607 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:24:09,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:24:09 BoogieIcfgContainer [2019-12-07 13:24:09,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:24:09,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:24:09,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:24:09,638 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:24:09,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:09" (3/4) ... [2019-12-07 13:24:09,640 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 13:24:09,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:24:09,642 INFO L168 Benchmark]: Toolchain (without parser) took 1039.89 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -62.1 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:09,643 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:09,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:09,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:09,644 INFO L168 Benchmark]: Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:09,644 INFO L168 Benchmark]: RCFGBuilder took 321.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:09,645 INFO L168 Benchmark]: TraceAbstraction took 407.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:09,645 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:09,647 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 321.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 407.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseAnd at line 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 145. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L180] double x = __VERIFIER_nondet_double(); [L182] x < 0 && isfinite_double(x) [L164] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] COND TRUE x < 0 && isfinite_double(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L144] COND TRUE hx >= 0x7ff00000 [L145] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L187] COND TRUE !isnan_double(res) [L188] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 13:24:11,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:24:11,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:24:11,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:24:11,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:24:11,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:24:11,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:24:11,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:24:11,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:24:11,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:24:11,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:24:11,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:24:11,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:24:11,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:24:11,090 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:24:11,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:24:11,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:24:11,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:24:11,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:24:11,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:24:11,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:24:11,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:24:11,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:24:11,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:24:11,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:24:11,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:24:11,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:24:11,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:24:11,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:24:11,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:24:11,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:24:11,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:24:11,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:24:11,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:24:11,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:24:11,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:24:11,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:24:11,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:24:11,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:24:11,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:24:11,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:24:11,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 13:24:11,117 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:24:11,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:24:11,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:24:11,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:24:11,118 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:24:11,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:24:11,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 13:24:11,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:24:11,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:24:11,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:11,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:24:11,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:24:11,122 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-12-07 13:24:11,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:24:11,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:24:11,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:24:11,298 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:24:11,299 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:24:11,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 13:24:11,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/cf2647b4a/64bc71285e514344b2cc17cc265abbcb/FLAG1cf4dfed8 [2019-12-07 13:24:11,753 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:24:11,753 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 13:24:11,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/cf2647b4a/64bc71285e514344b2cc17cc265abbcb/FLAG1cf4dfed8 [2019-12-07 13:24:12,121 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/data/cf2647b4a/64bc71285e514344b2cc17cc265abbcb [2019-12-07 13:24:12,125 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:24:12,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:24:12,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:12,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:24:12,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:24:12,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54590536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12, skipping insertion in model container [2019-12-07 13:24:12,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:24:12,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:24:12,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:12,296 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:24:12,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:24:12,378 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:24:12,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12 WrapperNode [2019-12-07 13:24:12,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:24:12,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:12,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:24:12,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:24:12,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:24:12,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:24:12,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:24:12,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:24:12,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... [2019-12-07 13:24:12,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:24:12,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:24:12,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:24:12,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:24:12,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:24:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:24:12,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 13:24:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:24:40,848 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:24:40,848 INFO L287 CfgBuilder]: Removed 26 assume(true) statements. [2019-12-07 13:24:40,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:40 BoogieIcfgContainer [2019-12-07 13:24:40,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:24:40,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:24:40,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:24:40,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:24:40,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:24:12" (1/3) ... [2019-12-07 13:24:40,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7f8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:40, skipping insertion in model container [2019-12-07 13:24:40,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:24:12" (2/3) ... [2019-12-07 13:24:40,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7f8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:24:40, skipping insertion in model container [2019-12-07 13:24:40,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:40" (3/3) ... [2019-12-07 13:24:40,854 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-12-07 13:24:40,860 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:24:40,865 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:24:40,872 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:24:40,889 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:24:40,889 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:24:40,889 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:24:40,889 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:24:40,889 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:24:40,889 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:24:40,889 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:24:40,889 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:24:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-12-07 13:24:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 13:24:40,904 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:40,904 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:40,905 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:40,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:40,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2019-12-07 13:24:40,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:24:40,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112340660] [2019-12-07 13:24:40,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 13:24:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,059 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 13:24:41,063 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:41,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:41,073 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:24:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:41,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112340660] [2019-12-07 13:24:41,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:41,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 13:24:41,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64917734] [2019-12-07 13:24:41,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:24:41,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:24:41,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:24:41,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:41,091 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-12-07 13:24:41,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:41,107 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2019-12-07 13:24:41,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:24:41,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 13:24:41,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:41,116 INFO L225 Difference]: With dead ends: 95 [2019-12-07 13:24:41,116 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 13:24:41,119 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:24:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 13:24:41,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 13:24:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 13:24:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2019-12-07 13:24:41,145 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2019-12-07 13:24:41,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:41,146 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2019-12-07 13:24:41,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:24:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2019-12-07 13:24:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 13:24:41,147 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:41,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:41,347 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 13:24:41,348 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:41,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2019-12-07 13:24:41,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:24:41,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194099104] [2019-12-07 13:24:41,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 13:24:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,517 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 13:24:41,518 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:41,527 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:24:41,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:41,529 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194099104] [2019-12-07 13:24:41,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:41,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 13:24:41,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847662254] [2019-12-07 13:24:41,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:24:41,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:24:41,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:24:41,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:24:41,532 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2019-12-07 13:24:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:41,548 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-12-07 13:24:41,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:24:41,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 13:24:41,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:41,550 INFO L225 Difference]: With dead ends: 83 [2019-12-07 13:24:41,550 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 13:24:41,551 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:24:41,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 13:24:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 13:24:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 13:24:41,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2019-12-07 13:24:41,555 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2019-12-07 13:24:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:41,555 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2019-12-07 13:24:41,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:24:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2019-12-07 13:24:41,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:24:41,556 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:41,556 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:41,756 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 13:24:41,757 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:41,758 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2019-12-07 13:24:41,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:24:41,759 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527398379] [2019-12-07 13:24:41,759 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 13:24:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:24:41,933 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 13:24:41,935 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:24:42,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:42,111 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 13:24:42,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:24:42,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527398379] [2019-12-07 13:24:42,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:24:42,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 13:24:42,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464123844] [2019-12-07 13:24:42,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 13:24:42,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 13:24:42,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 13:24:42,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 13:24:42,256 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2019-12-07 13:24:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:24:45,886 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2019-12-07 13:24:45,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:24:45,914 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-12-07 13:24:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:24:45,915 INFO L225 Difference]: With dead ends: 50 [2019-12-07 13:24:45,915 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 13:24:45,916 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 13:24:45,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 13:24:45,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 13:24:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 13:24:45,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-07 13:24:45,919 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-12-07 13:24:45,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:24:45,919 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-12-07 13:24:45,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 13:24:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-07 13:24:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:24:45,919 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:24:45,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:24:46,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 13:24:46,121 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:24:46,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:24:46,121 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2019-12-07 13:24:46,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 13:24:46,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096740892] [2019-12-07 13:24:46,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 13:24:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:24:48,075 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 13:24:48,076 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:24:48,276 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 13:24:48,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:24:48 BoogieIcfgContainer [2019-12-07 13:24:48,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:24:48,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:24:48,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:24:48,346 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:24:48,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:24:40" (3/4) ... [2019-12-07 13:24:48,348 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:24:48,398 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3c2bdfa6-65b7-4c62-8e65-a8c4bc7d03ff/bin/uautomizer/witness.graphml [2019-12-07 13:24:48,398 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:24:48,400 INFO L168 Benchmark]: Toolchain (without parser) took 36273.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 952.4 MB in the beginning and 886.0 MB in the end (delta: 66.4 MB). Peak memory consumption was 150.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:48,400 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:48,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:48,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:48,401 INFO L168 Benchmark]: Boogie Preprocessor took 32.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:24:48,401 INFO L168 Benchmark]: RCFGBuilder took 28401.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:48,401 INFO L168 Benchmark]: TraceAbstraction took 7495.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 892.9 MB in the end (delta: 130.2 MB). Peak memory consumption was 130.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:48,402 INFO L168 Benchmark]: Witness Printer took 52.56 ms. Allocated memory is still 1.1 GB. Free memory was 892.9 MB in the beginning and 886.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 13:24:48,403 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 28401.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7495.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 892.9 MB in the end (delta: 130.2 MB). Peak memory consumption was 130.2 MB. Max. memory is 11.5 GB. * Witness Printer took 52.56 ms. Allocated memory is still 1.1 GB. Free memory was 892.9 MB in the beginning and 886.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 188]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L180] double x = __VERIFIER_nondet_double(); [L182] x < 0 && isfinite_double(x) [L164] __int32_t hx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] x < 0 && isfinite_double(x) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] COND TRUE x < 0 && isfinite_double(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L187] COND TRUE !isnan_double(res) [L188] __VERIFIER_error() VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Result: UNSAFE, OverallTime: 7.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 74 SDslu, 80 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...