./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.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_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/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 84dba58cac25505e0eb3c404a47a071a268de901 .......................................................................................................................................................................................................................................................................................... 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_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/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 84dba58cac25505e0eb3c404a47a071a268de901 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:14:37,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:14:37,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:14:37,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:14:37,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:14:37,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:14:37,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:14:37,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:14:37,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:14:37,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:14:37,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:14:37,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:14:37,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:14:37,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:14:37,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:14:37,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:14:37,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:14:37,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:14:37,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:14:37,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:14:37,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:14:37,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:14:37,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:14:37,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:14:37,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:14:37,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:14:37,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:14:37,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:14:37,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:14:37,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:14:37,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:14:37,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:14:37,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:14:37,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:14:37,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:14:37,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:14:37,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:14:37,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:14:37,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:14:37,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:14:37,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:14:37,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:14:37,459 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:14:37,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:14:37,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:14:37,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:14:37,461 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:14:37,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:14:37,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:14:37,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:14:37,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:14:37,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:14:37,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:14:37,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:14:37,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:14:37,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:14:37,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:14:37,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:14:37,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:14:37,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:14:37,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:14:37,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:14:37,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:14:37,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:14:37,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:14:37,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:14:37,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:14:37,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:14:37,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:14:37,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:14:37,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:14:37,465 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_8c7cfb89-253f-433b-b3f0-2c735840636e/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2019-12-07 18:14:37,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:14:37,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:14:37,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:14:37,576 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:14:37,576 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:14:37,577 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-12-07 18:14:37,614 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/f120b22fd/cf8010cf24374ca9b28b022f9cd7d3a9/FLAG1cdcdc711 [2019-12-07 18:14:38,046 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:14:38,047 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-12-07 18:14:38,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/f120b22fd/cf8010cf24374ca9b28b022f9cd7d3a9/FLAG1cdcdc711 [2019-12-07 18:14:38,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/f120b22fd/cf8010cf24374ca9b28b022f9cd7d3a9 [2019-12-07 18:14:38,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:14:38,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:14:38,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:14:38,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:14:38,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:14:38,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcd8b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38, skipping insertion in model container [2019-12-07 18:14:38,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:14:38,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:14:38,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:14:38,240 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:14:38,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:14:38,278 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:14:38,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38 WrapperNode [2019-12-07 18:14:38,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:14:38,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:14:38,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:14:38,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:14:38,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:14:38,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:14:38,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:14:38,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:14:38,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... [2019-12-07 18:14:38,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:14:38,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:14:38,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:14:38,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:14:38,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:14:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:14:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:14:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:14:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:14:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:14:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:14:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:14:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:14:38,570 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:14:38,570 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:14:38,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:38 BoogieIcfgContainer [2019-12-07 18:14:38,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:14:38,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:14:38,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:14:38,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:14:38,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:14:38" (1/3) ... [2019-12-07 18:14:38,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e09f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:14:38, skipping insertion in model container [2019-12-07 18:14:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:38" (2/3) ... [2019-12-07 18:14:38,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e09f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:14:38, skipping insertion in model container [2019-12-07 18:14:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:38" (3/3) ... [2019-12-07 18:14:38,575 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-12-07 18:14:38,581 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:14:38,585 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:14:38,592 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:14:38,607 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:14:38,607 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:14:38,607 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:14:38,607 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:14:38,607 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:14:38,608 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:14:38,608 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:14:38,608 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:14:38,617 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:14:38,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:14:38,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:14:38,621 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:14:38,622 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:14:38,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:14:38,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-12-07 18:14:38,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:14:38,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599236624] [2019-12-07 18:14:38,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:14:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:14:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:38,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599236624] [2019-12-07 18:14:38,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:14:38,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:14:38,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923818278] [2019-12-07 18:14:38,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:14:38,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:14:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:14:38,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:14:38,718 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:14:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:14:38,730 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-12-07 18:14:38,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:14:38,731 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:14:38,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:14:38,738 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:14:38,738 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:14:38,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:14:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:14:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:14:38,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:14:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-12-07 18:14:38,763 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-12-07 18:14:38,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:14:38,763 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-12-07 18:14:38,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:14:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-12-07 18:14:38,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:14:38,764 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:14:38,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:14:38,764 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:14:38,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:14:38,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-12-07 18:14:38,764 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:14:38,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880905717] [2019-12-07 18:14:38,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:14:38,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:14:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:14:38,827 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:14:38,827 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:14:38,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:14:38 BoogieIcfgContainer [2019-12-07 18:14:38,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:14:38,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:14:38,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:14:38,846 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:14:38,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:38" (3/4) ... [2019-12-07 18:14:38,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:14:38,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:14:38,850 INFO L168 Benchmark]: Toolchain (without parser) took 787.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -84.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:38,851 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:14:38,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:38,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:38,852 INFO L168 Benchmark]: Boogie Preprocessor took 26.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:14:38,852 INFO L168 Benchmark]: RCFGBuilder took 236.93 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:38,853 INFO L168 Benchmark]: TraceAbstraction took 274.39 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:38,853 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:14:38,855 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 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.12 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 26.65 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 236.93 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.39 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 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: 95]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [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 [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = ceil_double(x); [L15] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=34occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 18:14:40,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:14:40,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:14:40,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:14:40,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:14:40,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:14:40,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:14:40,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:14:40,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:14:40,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:14:40,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:14:40,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:14:40,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:14:40,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:14:40,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:14:40,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:14:40,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:14:40,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:14:40,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:14:40,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:14:40,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:14:40,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:14:40,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:14:40,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:14:40,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:14:40,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:14:40,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:14:40,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:14:40,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:14:40,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:14:40,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:14:40,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:14:40,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:14:40,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:14:40,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:14:40,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:14:40,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:14:40,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:14:40,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:14:40,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:14:40,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:14:40,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:14:40,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:14:40,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:14:40,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:14:40,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:14:40,228 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:14:40,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:14:40,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:14:40,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:14:40,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:14:40,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:14:40,231 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:14:40,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:14:40,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:14:40,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:14:40,232 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_8c7cfb89-253f-433b-b3f0-2c735840636e/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 -> 84dba58cac25505e0eb3c404a47a071a268de901 [2019-12-07 18:14:40,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:14:40,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:14:40,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:14:40,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:14:40,418 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:14:40,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-12-07 18:14:40,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/136d8cd53/c97ef6e96f104f6381488dfe2c246a37/FLAG8c9f2b34b [2019-12-07 18:14:40,814 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:14:40,815 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-12-07 18:14:40,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/136d8cd53/c97ef6e96f104f6381488dfe2c246a37/FLAG8c9f2b34b [2019-12-07 18:14:40,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/data/136d8cd53/c97ef6e96f104f6381488dfe2c246a37 [2019-12-07 18:14:40,833 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:14:40,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:14:40,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:14:40,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:14:40,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:14:40,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:14:40" (1/1) ... [2019-12-07 18:14:40,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357db60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:40, skipping insertion in model container [2019-12-07 18:14:40,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:14:40" (1/1) ... [2019-12-07 18:14:40,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:14:40,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:14:40,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:14:40,972 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:14:40,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:14:41,042 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:14:41,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41 WrapperNode [2019-12-07 18:14:41,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:14:41,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:14:41,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:14:41,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:14:41,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:14:41,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:14:41,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:14:41,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:14:41,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... [2019-12-07 18:14:41,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:14:41,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:14:41,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:14:41,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:14:41,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:14:41,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:14:41,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:14:41,971 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:14:41,971 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:14:41,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:41 BoogieIcfgContainer [2019-12-07 18:14:41,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:14:41,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:14:41,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:14:41,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:14:41,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:14:40" (1/3) ... [2019-12-07 18:14:41,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f825ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:14:41, skipping insertion in model container [2019-12-07 18:14:41,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:14:41" (2/3) ... [2019-12-07 18:14:41,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53f825ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:14:41, skipping insertion in model container [2019-12-07 18:14:41,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:41" (3/3) ... [2019-12-07 18:14:41,977 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-12-07 18:14:41,983 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:14:41,987 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:14:41,994 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:14:42,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:14:42,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:14:42,010 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:14:42,010 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:14:42,010 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:14:42,010 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:14:42,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:14:42,010 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:14:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:14:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:14:42,024 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:14:42,024 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:14:42,025 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:14:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:14:42,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-12-07 18:14:42,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:14:42,035 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352281822] [2019-12-07 18:14:42,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 18:14:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:14:42,103 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:14:42,106 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:14:42,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:42,115 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:14:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:42,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352281822] [2019-12-07 18:14:42,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:14:42,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:14:42,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7107896] [2019-12-07 18:14:42,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:14:42,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:14:42,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:14:42,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:14:42,134 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:14:42,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:14:42,147 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-12-07 18:14:42,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:14:42,148 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:14:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:14:42,157 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:14:42,157 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:14:42,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:14:42,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:14:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:14:42,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:14:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-12-07 18:14:42,185 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-12-07 18:14:42,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:14:42,185 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-12-07 18:14:42,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:14:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-12-07 18:14:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:14:42,186 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:14:42,186 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:14:42,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:14:42,387 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:14:42,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:14:42,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-12-07 18:14:42,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:14:42,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972499906] [2019-12-07 18:14:42,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 18:14:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:14:42,490 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:14:42,491 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:14:42,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:14:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:42,580 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:14:42,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:42,652 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972499906] [2019-12-07 18:14:42,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:14:42,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:14:42,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124193841] [2019-12-07 18:14:42,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:14:42,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:14:42,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:14:42,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:14:42,654 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-12-07 18:14:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:14:43,736 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-12-07 18:14:43,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:14:43,737 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-07 18:14:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:14:43,738 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:14:43,738 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 18:14:43,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:14:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 18:14:43,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 18:14:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 18:14:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-12-07 18:14:43,741 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-12-07 18:14:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:14:43,741 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-12-07 18:14:43,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:14:43,742 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-12-07 18:14:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:14:43,742 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:14:43,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:14:43,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:14:43,943 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:14:43,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:14:43,944 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-12-07 18:14:43,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:14:43,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033584677] [2019-12-07 18:14:43,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 18:14:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:14:44,111 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:14:44,113 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:14:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:44,218 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:14:44,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:14:44,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033584677] [2019-12-07 18:14:44,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:14:44,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:14:44,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108634391] [2019-12-07 18:14:44,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:14:44,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:14:44,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:14:44,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:14:44,341 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-12-07 18:14:44,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:14:44,518 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-12-07 18:14:44,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:14:44,519 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-12-07 18:14:44,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:14:44,519 INFO L225 Difference]: With dead ends: 21 [2019-12-07 18:14:44,519 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:14:44,519 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:14:44,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:14:44,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:14:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:14:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:14:44,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 18:14:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:14:44,520 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:14:44,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:14:44,520 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:14:44,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:14:44,721 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:14:44,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point L52(lines 52 55) no Hoare annotation was computed. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point L44(lines 44 49) no Hoare annotation was computed. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point L94(lines 94 97) no Hoare annotation was computed. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:14:44,830 INFO L246 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L62(lines 62 69) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L29(lines 29 73) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L30(lines 30 50) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L246 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-12-07 18:14:44,831 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L242 CegarLoopResult]: At program point L80(lines 19 81) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L31(lines 31 39) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L74(lines 74 79) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2019-12-07 18:14:44,832 INFO L246 CegarLoopResult]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L249 CegarLoopResult]: At program point L99(lines 83 100) the Hoare annotation is: true [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L58(lines 58 59) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L51(lines 51 73) no Hoare annotation was computed. [2019-12-07 18:14:44,833 INFO L246 CegarLoopResult]: For program point L35(lines 35 38) no Hoare annotation was computed. [2019-12-07 18:14:44,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,844 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,847 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:14:44 BoogieIcfgContainer [2019-12-07 18:14:44,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:14:44,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:14:44,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:14:44,849 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:14:44,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:14:41" (3/4) ... [2019-12-07 18:14:44,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:14:44,860 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 18:14:44,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 18:14:44,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:14:44,880 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-12-07 18:14:44,880 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) [2019-12-07 18:14:44,881 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-12-07 18:14:44,900 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8c7cfb89-253f-433b-b3f0-2c735840636e/bin/uautomizer/witness.graphml [2019-12-07 18:14:44,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:14:44,901 INFO L168 Benchmark]: Toolchain (without parser) took 4066.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.4 MB in the beginning and 972.3 MB in the end (delta: -19.9 MB). Peak memory consumption was 108.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:44,901 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:14:44,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:44,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.95 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 18:14:44,902 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 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 18:14:44,902 INFO L168 Benchmark]: RCFGBuilder took 877.25 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:44,903 INFO L168 Benchmark]: TraceAbstraction took 2876.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 111.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:14:44,903 INFO L168 Benchmark]: Witness Printer took 51.08 ms. Allocated memory is still 1.2 GB. Free memory is still 972.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:14:44,904 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 207.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.95 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 23.62 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 877.25 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2876.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.3 MB in the end (delta: 111.3 MB). Peak memory consumption was 111.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.08 ms. Allocated memory is still 1.2 GB. Free memory is still 972.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2019-12-07 18:14:44,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 19]: Loop Invariant [2019-12-07 18:14:44,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-12-07 18:14:44,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:14:44,909 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 35 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 19 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 correct! Received shutdown request...