./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.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_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 c6d763742402f5574758af03df7d1953644b4c87 ........................................................................................................................................................................................................................................................................................................... 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_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 c6d763742402f5574758af03df7d1953644b4c87 ......................................................................................................................................................................................................................................................................................................................... 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 11:28:42,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:28:42,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:28:42,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:28:42,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:28:42,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:28:42,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:28:42,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:28:42,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:28:42,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:28:42,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:28:42,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:28:42,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:28:42,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:28:42,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:28:42,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:28:42,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:28:42,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:28:42,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:28:42,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:28:42,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:28:42,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:28:42,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:28:42,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:28:42,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:28:42,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:28:42,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:28:42,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:28:42,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:28:42,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:28:42,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:28:42,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:28:42,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:28:42,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:28:42,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:28:42,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:28:42,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:28:42,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:28:42,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:28:42,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:28:42,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:28:42,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 11:28:42,368 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:28:42,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:28:42,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:28:42,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:28:42,370 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:28:42,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:28:42,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:28:42,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:28:42,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:28:42,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:28:42,372 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:28:42,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:28:42,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:28:42,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:28:42,373 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:28:42,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:28:42,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:28:42,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:28:42,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:28:42,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:28:42,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:28:42,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:28:42,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:28:42,375 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:28:42,375 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_0eeddc17-5825-4001-ab08-a222d6829d82/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 -> c6d763742402f5574758af03df7d1953644b4c87 [2019-12-07 11:28:42,484 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:28:42,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:28:42,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:28:42,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:28:42,499 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:28:42,499 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2019-12-07 11:28:42,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/8a2f1ce7d/6cc5c66e16224f49a28e333224fa31ed/FLAG75d798722 [2019-12-07 11:28:42,937 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:28:42,937 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2019-12-07 11:28:42,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/8a2f1ce7d/6cc5c66e16224f49a28e333224fa31ed/FLAG75d798722 [2019-12-07 11:28:43,343 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/8a2f1ce7d/6cc5c66e16224f49a28e333224fa31ed [2019-12-07 11:28:43,346 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:28:43,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:28:43,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:28:43,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:28:43,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:28:43,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb9dc9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43, skipping insertion in model container [2019-12-07 11:28:43,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:28:43,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:28:43,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:28:43,573 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:28:43,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:28:43,621 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:28:43,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43 WrapperNode [2019-12-07 11:28:43,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:28:43,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:28:43,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:28:43,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:28:43,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:28:43,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:28:43,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:28:43,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:28:43,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... [2019-12-07 11:28:43,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:28:43,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:28:43,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:28:43,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:28:43,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 11:28:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:28:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:28:43,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 11:28:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:28:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:28:43,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:28:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:28:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 11:28:43,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:28:44,027 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:28:44,027 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 11:28:44,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:44 BoogieIcfgContainer [2019-12-07 11:28:44,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:28:44,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:28:44,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:28:44,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:28:44,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:28:43" (1/3) ... [2019-12-07 11:28:44,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8edeb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:28:44, skipping insertion in model container [2019-12-07 11:28:44,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:43" (2/3) ... [2019-12-07 11:28:44,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8edeb7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:28:44, skipping insertion in model container [2019-12-07 11:28:44,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:44" (3/3) ... [2019-12-07 11:28:44,035 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2019-12-07 11:28:44,043 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:28:44,048 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:28:44,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:28:44,070 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:28:44,070 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:28:44,070 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:28:44,070 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:28:44,070 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:28:44,070 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:28:44,070 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:28:44,070 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:28:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-12-07 11:28:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:28:44,086 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:28:44,087 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:28:44,087 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:28:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:28:44,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2036387893, now seen corresponding path program 1 times [2019-12-07 11:28:44,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:28:44,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233828475] [2019-12-07 11:28:44,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:28:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:28:44,178 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 11:28:44,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233828475] [2019-12-07 11:28:44,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:28:44,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:28:44,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050250821] [2019-12-07 11:28:44,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:28:44,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:28:44,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:28:44,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:28:44,192 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-12-07 11:28:44,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:28:44,207 INFO L93 Difference]: Finished difference Result 118 states and 206 transitions. [2019-12-07 11:28:44,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:28:44,208 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 11:28:44,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:28:44,215 INFO L225 Difference]: With dead ends: 118 [2019-12-07 11:28:44,215 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 11:28:44,217 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 11:28:44,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 11:28:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-07 11:28:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 11:28:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2019-12-07 11:28:44,242 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 13 [2019-12-07 11:28:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:28:44,242 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2019-12-07 11:28:44,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:28:44,243 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2019-12-07 11:28:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 11:28:44,243 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:28:44,243 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:28:44,243 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:28:44,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:28:44,244 INFO L82 PathProgramCache]: Analyzing trace with hash -794890891, now seen corresponding path program 1 times [2019-12-07 11:28:44,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:28:44,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424023229] [2019-12-07 11:28:44,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:28:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:28:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:28:44,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:28:44,385 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:28:44,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:28:44 BoogieIcfgContainer [2019-12-07 11:28:44,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:28:44,416 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:28:44,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:28:44,417 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:28:44,417 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:44" (3/4) ... [2019-12-07 11:28:44,420 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:28:44,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:28:44,422 INFO L168 Benchmark]: Toolchain (without parser) took 1074.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -64.8 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:44,423 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:28:44,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:44,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:28:44,425 INFO L168 Benchmark]: Boogie Preprocessor took 27.16 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 11:28:44,425 INFO L168 Benchmark]: RCFGBuilder took 341.04 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:44,426 INFO L168 Benchmark]: TraceAbstraction took 386.58 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:44,426 INFO L168 Benchmark]: Witness Printer took 4.10 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 11:28:44,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 274.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -141.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.16 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 341.04 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 386.58 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.10 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: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 41, overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42, overapproximation of bitwiseAnd at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 185, overapproximation of bitwiseXor at line 37. Possible FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L161] __int32_t hx; VAL [one_fmod=1, Zero_fmod={3:0}] [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [one_fmod=1, Zero_fmod={3:0}] [L180] COND TRUE isfinite_double(x) [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x VAL [one_fmod=1, Zero_fmod={3:0}] [L186] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:28:45,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:28:45,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:28:45,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:28:45,766 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:28:45,767 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:28:45,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:28:45,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:28:45,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:28:45,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:28:45,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:28:45,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:28:45,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:28:45,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:28:45,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:28:45,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:28:45,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:28:45,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:28:45,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:28:45,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:28:45,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:28:45,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:28:45,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:28:45,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:28:45,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:28:45,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:28:45,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:28:45,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:28:45,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:28:45,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:28:45,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:28:45,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:28:45,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:28:45,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:28:45,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:28:45,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:28:45,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:28:45,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:28:45,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:28:45,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:28:45,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:28:45,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 11:28:45,801 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:28:45,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:28:45,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:28:45,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:28:45,802 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:28:45,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:28:45,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:28:45,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:28:45,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:28:45,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:28:45,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:28:45,806 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:28:45,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:28:45,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:28:45,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:28:45,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:28:45,806 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_0eeddc17-5825-4001-ab08-a222d6829d82/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 -> c6d763742402f5574758af03df7d1953644b4c87 [2019-12-07 11:28:45,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:28:45,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:28:45,979 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:28:45,980 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:28:45,981 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:28:45,981 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2019-12-07 11:28:46,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/9ff548a94/adfb0c0ce9f64ad6960a7badab14e665/FLAGb9d08855d [2019-12-07 11:28:46,480 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:28:46,480 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/sv-benchmarks/c/float-newlib/double_req_bl_1131b.c [2019-12-07 11:28:46,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/9ff548a94/adfb0c0ce9f64ad6960a7badab14e665/FLAGb9d08855d [2019-12-07 11:28:46,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/data/9ff548a94/adfb0c0ce9f64ad6960a7badab14e665 [2019-12-07 11:28:46,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:28:46,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:28:46,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:28:46,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:28:46,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:28:46,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46, skipping insertion in model container [2019-12-07 11:28:46,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:28:46,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:28:46,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:28:46,661 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:28:46,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:28:46,742 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:28:46,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46 WrapperNode [2019-12-07 11:28:46,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:28:46,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:28:46,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:28:46,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:28:46,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:28:46,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:28:46,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:28:46,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:28:46,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... [2019-12-07 11:28:46,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:28:46,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:28:46,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:28:46,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:28:46,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 11:28:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 11:28:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 11:28:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:28:46,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 11:28:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:28:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:28:46,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:28:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 11:28:46,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:28:50,105 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:28:50,105 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 11:28:50,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:50 BoogieIcfgContainer [2019-12-07 11:28:50,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:28:50,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:28:50,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:28:50,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:28:50,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:28:46" (1/3) ... [2019-12-07 11:28:50,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bac1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:28:50, skipping insertion in model container [2019-12-07 11:28:50,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:28:46" (2/3) ... [2019-12-07 11:28:50,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bac1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:28:50, skipping insertion in model container [2019-12-07 11:28:50,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:50" (3/3) ... [2019-12-07 11:28:50,111 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2019-12-07 11:28:50,117 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:28:50,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:28:50,131 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:28:50,148 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:28:50,148 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:28:50,148 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:28:50,148 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:28:50,148 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:28:50,148 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:28:50,148 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:28:50,148 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:28:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-12-07 11:28:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 11:28:50,163 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:28:50,163 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:28:50,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:28:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:28:50,168 INFO L82 PathProgramCache]: Analyzing trace with hash 2036387893, now seen corresponding path program 1 times [2019-12-07 11:28:50,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:28:50,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864002189] [2019-12-07 11:28:50,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 11:28:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:28:51,015 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:28:51,019 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:28:51,030 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 11:28:51,031 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:28:51,033 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 11:28:51,034 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864002189] [2019-12-07 11:28:51,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:28:51,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:28:51,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831630646] [2019-12-07 11:28:51,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:28:51,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:28:51,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:28:51,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:28:51,049 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-12-07 11:28:51,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:28:51,064 INFO L93 Difference]: Finished difference Result 118 states and 206 transitions. [2019-12-07 11:28:51,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:28:51,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-07 11:28:51,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:28:51,073 INFO L225 Difference]: With dead ends: 118 [2019-12-07 11:28:51,073 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 11:28:51,075 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 11:28:51,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 11:28:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-07 11:28:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 11:28:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2019-12-07 11:28:51,101 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 82 transitions. Word has length 13 [2019-12-07 11:28:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:28:51,101 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 82 transitions. [2019-12-07 11:28:51,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:28:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 82 transitions. [2019-12-07 11:28:51,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 11:28:51,102 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:28:51,102 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:28:51,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:28:51,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:28:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:28:51,304 INFO L82 PathProgramCache]: Analyzing trace with hash -794890891, now seen corresponding path program 1 times [2019-12-07 11:28:51,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:28:51,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990251992] [2019-12-07 11:28:51,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/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 11:28:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:28:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:28:53,678 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 11:28:53,678 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:28:53,880 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:28:53,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:28:53 BoogieIcfgContainer [2019-12-07 11:28:53,941 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:28:53,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:28:53,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:28:53,941 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:28:53,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:28:50" (3/4) ... [2019-12-07 11:28:53,943 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 11:28:53,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0eeddc17-5825-4001-ab08-a222d6829d82/bin/uautomizer/witness.graphml [2019-12-07 11:28:53,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:28:53,980 INFO L168 Benchmark]: Toolchain (without parser) took 7483.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -43.2 MB). Peak memory consumption was 88.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,981 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:28:53,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.81 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,982 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 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 11:28:53,982 INFO L168 Benchmark]: RCFGBuilder took 3294.16 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: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,982 INFO L168 Benchmark]: TraceAbstraction took 3834.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,983 INFO L168 Benchmark]: Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 11:28:53,984 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.81 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3294.16 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: 45.9 MB). Peak memory consumption was 45.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3834.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 186]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15-L18] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L177] double y = -1.0 / 0.0; [L178] double x = __VERIFIER_nondet_double(); [L161] __int32_t hx; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L163] ieee_double_shape_type gh_u; [L164] gh_u.value = (x) [L165] EXPR gh_u.parts.msw [L165] (hx) = gh_u.parts.msw [L167] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [one_fmod=1.0, Zero_fmod={2:0}] [L180] COND TRUE isfinite_double(x) [L21] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L22] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (hx) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lx) = ew_u.parts.lsw [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (y) [L33] EXPR ew_u.parts.msw [L33] (hy) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ly) = ew_u.parts.lsw [L36] sx = hx & 0x80000000 [L37] hx ^= sx [L38] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L40-L41] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L42] return (x * y) / (x * y); VAL [one_fmod=1.0, Zero_fmod={2:0}] [L182] double res = fmod_double(x, y); [L185] COND TRUE res != x VAL [one_fmod=1.0, Zero_fmod={2:0}] [L186] __VERIFIER_error() VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 1 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 proved your program to be incorrect! Received shutdown request...