./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.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_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ......................................................................................................................................................................................................................................................................................................................................... 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_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/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 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:39:45,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:39:45,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:39:45,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:39:45,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:39:45,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:39:45,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:39:45,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:39:45,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:39:45,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:39:45,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:39:45,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:39:45,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:39:45,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:39:45,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:39:45,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:39:45,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:39:45,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:39:45,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:39:45,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:39:45,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:39:45,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:39:45,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:39:45,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:39:45,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:39:45,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:39:45,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:39:45,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:39:45,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:39:45,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:39:45,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:39:45,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:39:45,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:39:45,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:39:45,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:39:45,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:39:45,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:39:45,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:39:45,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:39:45,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:39:45,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:39:45,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:39:45,067 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:39:45,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:39:45,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:39:45,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:39:45,068 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:39:45,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:39:45,069 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:39:45,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:39:45,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:39:45,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:39:45,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:39:45,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:39:45,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:39:45,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:39:45,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:39:45,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:39:45,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:39:45,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:39:45,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:39:45,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:39:45,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:39:45,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:39:45,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:39:45,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:39:45,073 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_1a3874b9-b778-4e08-b10b-6efd83b01485/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-12-07 15:39:45,182 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:39:45,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:39:45,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:39:45,193 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:39:45,193 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:39:45,194 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-12-07 15:39:45,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/cf63edb9b/24f88526fac44bc6b63710eed2747218/FLAG67d48289d [2019-12-07 15:39:45,652 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:39:45,652 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-12-07 15:39:45,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/cf63edb9b/24f88526fac44bc6b63710eed2747218/FLAG67d48289d [2019-12-07 15:39:45,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/cf63edb9b/24f88526fac44bc6b63710eed2747218 [2019-12-07 15:39:45,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:39:45,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:39:45,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:39:45,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:39:45,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:39:45,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea666ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45, skipping insertion in model container [2019-12-07 15:39:45,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:39:45,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:39:45,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:39:45,871 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:39:45,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:39:45,904 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:39:45,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45 WrapperNode [2019-12-07 15:39:45,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:39:45,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:39:45,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:39:45,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:39:45,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:39:45,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:39:45,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:39:45,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:39:45,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... [2019-12-07 15:39:45,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:39:45,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:39:45,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:39:45,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:39:45,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:39:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:39:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:39:46,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:39:46,260 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:39:46,260 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 15:39:46,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:46 BoogieIcfgContainer [2019-12-07 15:39:46,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:39:46,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:39:46,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:39:46,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:39:46,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:39:45" (1/3) ... [2019-12-07 15:39:46,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:39:46, skipping insertion in model container [2019-12-07 15:39:46,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:45" (2/3) ... [2019-12-07 15:39:46,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:39:46, skipping insertion in model container [2019-12-07 15:39:46,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:46" (3/3) ... [2019-12-07 15:39:46,265 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-12-07 15:39:46,271 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:39:46,275 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:39:46,283 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:39:46,300 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:39:46,300 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:39:46,300 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:39:46,300 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:39:46,300 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:39:46,301 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:39:46,301 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:39:46,301 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:39:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-07 15:39:46,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:39:46,314 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:46,314 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:46,315 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:46,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-12-07 15:39:46,323 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:39:46,324 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454400324] [2019-12-07 15:39:46,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:39:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:39:46,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:46,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454400324] [2019-12-07 15:39:46,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:39:46,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:39:46,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388738110] [2019-12-07 15:39:46,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:39:46,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:39:46,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:39:46,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:39:46,427 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-12-07 15:39:46,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:39:46,441 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-12-07 15:39:46,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:39:46,442 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 15:39:46,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:39:46,451 INFO L225 Difference]: With dead ends: 86 [2019-12-07 15:39:46,451 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 15:39:46,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:39:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 15:39:46,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 15:39:46,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 15:39:46,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-12-07 15:39:46,478 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-12-07 15:39:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:39:46,478 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-12-07 15:39:46,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:39:46,478 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-12-07 15:39:46,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 15:39:46,479 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:46,479 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:46,479 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:46,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:46,480 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-12-07 15:39:46,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:39:46,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343595094] [2019-12-07 15:39:46,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:39:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:39:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:46,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343595094] [2019-12-07 15:39:46,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:39:46,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:39:46,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266914710] [2019-12-07 15:39:46,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:39:46,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:39:46,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:39:46,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:39:46,543 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-12-07 15:39:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:39:46,555 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-12-07 15:39:46,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:39:46,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-12-07 15:39:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:39:46,556 INFO L225 Difference]: With dead ends: 44 [2019-12-07 15:39:46,556 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 15:39:46,557 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 15:39:46,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 15:39:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 15:39:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 15:39:46,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-12-07 15:39:46,561 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-12-07 15:39:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:39:46,561 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-12-07 15:39:46,561 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:39:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-12-07 15:39:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 15:39:46,562 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:46,562 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:46,562 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:46,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:46,562 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-12-07 15:39:46,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:39:46,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128402102] [2019-12-07 15:39:46,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:39:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:39:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:39:46,633 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:39:46,634 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:39:46,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:39:46 BoogieIcfgContainer [2019-12-07 15:39:46,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:39:46,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:39:46,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:39:46,658 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:39:46,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:46" (3/4) ... [2019-12-07 15:39:46,660 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:39:46,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:39:46,662 INFO L168 Benchmark]: Toolchain (without parser) took 992.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -75.9 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:46,662 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:39:46,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:46,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:46,663 INFO L168 Benchmark]: Boogie Preprocessor took 25.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:39:46,664 INFO L168 Benchmark]: RCFGBuilder took 297.08 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:46,664 INFO L168 Benchmark]: TraceAbstraction took 395.82 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:46,664 INFO L168 Benchmark]: Witness Printer took 3.09 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 15:39:46,667 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 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.72 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 297.08 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 395.82 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 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=44occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 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 15:39:48,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:39:48,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:39:48,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-07 15:39:48,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:39:48,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:39:48,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:39:48,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:39:48,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:39:48,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:39:48,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:39:48,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:39:48,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:39:48,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:39:48,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:39:48,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:39:48,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:39:48,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:39:48,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:39:48,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:39:48,158 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:39:48,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:39:48,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:39:48,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:39:48,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:39:48,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:39:48,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:39:48,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:39:48,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:39:48,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:39:48,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:39:48,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:39:48,161 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:39:48,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:39:48,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:39:48,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:39:48,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:39:48,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:39:48,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:39:48,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:39:48,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:39:48,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:39:48,163 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:39:48,163 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:39:48,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:39:48,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:39:48,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:39:48,163 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_1a3874b9-b778-4e08-b10b-6efd83b01485/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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-12-07 15:39:48,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:39:48,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:39:48,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:39:48,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:39:48,355 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:39:48,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-12-07 15:39:48,394 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/ee537974f/7f14f53ab64340309ff25ee6908acc70/FLAGabc5b0340 [2019-12-07 15:39:48,836 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:39:48,836 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-12-07 15:39:48,841 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/ee537974f/7f14f53ab64340309ff25ee6908acc70/FLAGabc5b0340 [2019-12-07 15:39:48,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/data/ee537974f/7f14f53ab64340309ff25ee6908acc70 [2019-12-07 15:39:48,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:39:48,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:39:48,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:39:48,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:39:48,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:39:48,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:39:48" (1/1) ... [2019-12-07 15:39:48,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562a36d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:48, skipping insertion in model container [2019-12-07 15:39:48,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:39:48" (1/1) ... [2019-12-07 15:39:48,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:39:48,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:39:48,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:39:49,005 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:39:49,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:39:49,075 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:39:49,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49 WrapperNode [2019-12-07 15:39:49,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:39:49,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:39:49,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:39:49,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:39:49,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:39:49,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:39:49,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:39:49,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:39:49,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... [2019-12-07 15:39:49,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:39:49,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:39:49,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:39:49,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:39:49,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:39:49,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:39:49,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:39:49,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:39:49,986 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:39:49,986 INFO L287 CfgBuilder]: Removed 30 assume(true) statements. [2019-12-07 15:39:49,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:49 BoogieIcfgContainer [2019-12-07 15:39:49,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:39:49,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:39:49,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:39:49,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:39:49,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:39:48" (1/3) ... [2019-12-07 15:39:49,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127e6f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:39:49, skipping insertion in model container [2019-12-07 15:39:49,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:39:49" (2/3) ... [2019-12-07 15:39:49,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127e6f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:39:49, skipping insertion in model container [2019-12-07 15:39:49,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:49" (3/3) ... [2019-12-07 15:39:49,992 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-12-07 15:39:49,999 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:39:50,003 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:39:50,011 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:39:50,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:39:50,027 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:39:50,027 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:39:50,027 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:39:50,027 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:39:50,027 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:39:50,027 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:39:50,027 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:39:50,037 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-12-07 15:39:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:39:50,041 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:50,041 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:50,041 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:50,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:50,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-12-07 15:39:50,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:39:50,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346138242] [2019-12-07 15:39:50,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 15:39:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:39:50,130 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:39:50,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:39:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:50,143 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:39:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:50,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346138242] [2019-12-07 15:39:50,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:39:50,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:39:50,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034502177] [2019-12-07 15:39:50,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:39:50,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:39:50,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:39:50,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:39:50,160 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-12-07 15:39:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:39:50,174 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-12-07 15:39:50,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:39:50,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 15:39:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:39:50,185 INFO L225 Difference]: With dead ends: 86 [2019-12-07 15:39:50,185 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 15:39:50,188 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:39:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 15:39:50,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 15:39:50,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 15:39:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-12-07 15:39:50,215 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-12-07 15:39:50,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:39:50,215 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-12-07 15:39:50,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:39:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-12-07 15:39:50,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 15:39:50,216 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:50,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:50,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:39:50,417 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:50,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:50,417 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-12-07 15:39:50,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:39:50,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810639462] [2019-12-07 15:39:50,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 15:39:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:39:50,533 INFO L264 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:39:50,536 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:39:50,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:50,629 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:39:50,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:50,738 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810639462] [2019-12-07 15:39:50,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:39:50,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 15:39:50,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096770871] [2019-12-07 15:39:50,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 15:39:50,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:39:50,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 15:39:50,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 15:39:50,740 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-12-07 15:39:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:39:51,398 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-12-07 15:39:51,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 15:39:51,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-12-07 15:39:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:39:51,399 INFO L225 Difference]: With dead ends: 48 [2019-12-07 15:39:51,399 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 15:39:51,400 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-12-07 15:39:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 15:39:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 15:39:51,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 15:39:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-07 15:39:51,404 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-12-07 15:39:51,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:39:51,404 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-12-07 15:39:51,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 15:39:51,405 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-07 15:39:51,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:39:51,405 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:51,405 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 15:39:51,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:39:51,606 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:51,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-12-07 15:39:51,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:39:51,608 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939044360] [2019-12-07 15:39:51,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 15:39:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:39:51,905 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:39:51,906 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:39:51,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:51,913 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:39:51,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:39:51,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939044360] [2019-12-07 15:39:51,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:39:51,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:39:51,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617503545] [2019-12-07 15:39:51,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:39:51,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:39:51,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:39:51,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:39:51,916 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-12-07 15:39:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:39:51,937 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-12-07 15:39:51,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:39:51,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 15:39:51,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:39:51,938 INFO L225 Difference]: With dead ends: 22 [2019-12-07 15:39:51,938 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 15:39:51,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 15:39:51,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 15:39:51,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 15:39:51,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 15:39:51,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-12-07 15:39:51,942 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-12-07 15:39:51,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:39:51,942 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-12-07 15:39:51,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:39:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-12-07 15:39:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 15:39:51,942 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:39:51,943 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:39:52,143 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:39:52,144 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:39:52,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:39:52,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-12-07 15:39:52,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:39:52,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500711866] [2019-12-07 15:39:52,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/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 15:39:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:39:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:39:52,970 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 15:39:52,970 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:39:53,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:39:53,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:39:53 BoogieIcfgContainer [2019-12-07 15:39:53,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:39:53,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:39:53,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:39:53,218 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:39:53,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:39:49" (3/4) ... [2019-12-07 15:39:53,220 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:39:53,259 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1a3874b9-b778-4e08-b10b-6efd83b01485/bin/uautomizer/witness.graphml [2019-12-07 15:39:53,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:39:53,261 INFO L168 Benchmark]: Toolchain (without parser) took 4408.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 952.8 MB in the end (delta: -393.7 kB). Peak memory consumption was 132.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,261 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:39:53,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:39:53,262 INFO L168 Benchmark]: Boogie Preprocessor took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,262 INFO L168 Benchmark]: RCFGBuilder took 843.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,263 INFO L168 Benchmark]: TraceAbstraction took 3229.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.6 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,263 INFO L168 Benchmark]: Witness Printer took 41.78 ms. Allocated memory is still 1.2 GB. Free memory was 959.6 MB in the beginning and 952.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:39:53,266 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 843.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.4 MB). Peak memory consumption was 40.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3229.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.6 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.78 ms. Allocated memory is still 1.2 GB. Free memory was 959.6 MB in the beginning and 952.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 5 QuantifiedInterpolants, 2708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 164 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! Received shutdown request...