./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.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_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 0fa375491f6ee23468a1ede5cb9608fff6035ced .......................................................................................................................................................................................................................................................................................... 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_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 0fa375491f6ee23468a1ede5cb9608fff6035ced ....................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:02:36,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:02:36,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:02:36,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:02:36,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:02:36,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:02:36,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:02:36,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:02:36,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:02:36,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:02:36,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:02:36,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:02:36,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:02:36,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:02:36,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:02:36,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:02:36,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:02:36,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:02:36,062 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:02:36,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:02:36,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:02:36,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:02:36,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:02:36,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:02:36,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:02:36,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:02:36,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:02:36,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:02:36,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:02:36,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:02:36,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:02:36,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:02:36,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:02:36,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:02:36,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:02:36,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:02:36,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:02:36,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:02:36,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:02:36,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:02:36,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:02:36,074 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:02:36,083 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:02:36,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:02:36,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:02:36,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:02:36,084 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:02:36,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:02:36,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:02:36,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:02:36,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:02:36,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:02:36,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:02:36,087 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_9da78cda-229f-486d-adf6-2b37e09def69/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-12-07 18:02:36,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:02:36,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:02:36,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:02:36,207 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:02:36,207 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:02:36,208 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-12-07 18:02:36,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/342150755/164418cd02aa417eb5106e7e1de6be26/FLAG713129121 [2019-12-07 18:02:36,731 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:02:36,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-12-07 18:02:36,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/342150755/164418cd02aa417eb5106e7e1de6be26/FLAG713129121 [2019-12-07 18:02:36,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/342150755/164418cd02aa417eb5106e7e1de6be26 [2019-12-07 18:02:36,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:02:36,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:02:36,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:02:36,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:02:36,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:02:36,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,751 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 06:02:36, skipping insertion in model container [2019-12-07 18:02:36,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:02:36,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:02:36,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:02:36,913 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:02:36,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:02:36,948 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:02:36,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36 WrapperNode [2019-12-07 18:02:36,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:02:36,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:02:36,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:02:36,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:02:36,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:02:36,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:02:36,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:02:36,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:02:36,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... [2019-12-07 18:02:36,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:02:36,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:02:36,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:02:36,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:02:36,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:02:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:02:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:02:37,216 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:02:37,217 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:02:37,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:37 BoogieIcfgContainer [2019-12-07 18:02:37,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:02:37,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:02:37,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:02:37,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:02:37,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:02:36" (1/3) ... [2019-12-07 18:02:37,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e84762f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:02:37, skipping insertion in model container [2019-12-07 18:02:37,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:36" (2/3) ... [2019-12-07 18:02:37,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e84762f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:02:37, skipping insertion in model container [2019-12-07 18:02:37,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:37" (3/3) ... [2019-12-07 18:02:37,222 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-12-07 18:02:37,229 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:02:37,232 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:02:37,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:02:37,256 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:02:37,256 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:02:37,256 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:02:37,256 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:02:37,256 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:02:37,256 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:02:37,256 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:02:37,256 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:02:37,266 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:02:37,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:02:37,270 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:02:37,270 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:02:37,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:02:37,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:02:37,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-12-07 18:02:37,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:02:37,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594578489] [2019-12-07 18:02:37,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:02:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:02:37,352 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 18:02:37,353 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594578489] [2019-12-07 18:02:37,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:02:37,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:02:37,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095794059] [2019-12-07 18:02:37,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:02:37,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:02:37,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:02:37,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:02:37,367 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:02:37,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:02:37,379 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-12-07 18:02:37,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:02:37,380 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:02:37,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:02:37,387 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:02:37,387 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:02:37,389 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 18:02:37,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:02:37,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:02:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:02:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-12-07 18:02:37,412 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-12-07 18:02:37,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:02:37,413 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-12-07 18:02:37,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:02:37,413 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-12-07 18:02:37,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:02:37,413 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:02:37,413 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:02:37,414 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:02:37,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:02:37,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-12-07 18:02:37,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:02:37,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221591638] [2019-12-07 18:02:37,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:02:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:02:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:02:37,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:02:37,477 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:02:37,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:02:37 BoogieIcfgContainer [2019-12-07 18:02:37,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:02:37,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:02:37,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:02:37,497 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:02:37,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:37" (3/4) ... [2019-12-07 18:02:37,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:02:37,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:02:37,501 INFO L168 Benchmark]: Toolchain (without parser) took 754.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -57.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:37,501 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:02:37,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:37,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.11 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 18:02:37,502 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 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 18:02:37,503 INFO L168 Benchmark]: RCFGBuilder took 220.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:37,503 INFO L168 Benchmark]: TraceAbstraction took 278.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:37,503 INFO L168 Benchmark]: Witness Printer took 2.84 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 18:02:37,506 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -118.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.11 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 20.20 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 220.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 278.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 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: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=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 18:02:38,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:02:38,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:02:38,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:02:38,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:02:38,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:02:38,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:02:38,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:02:38,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:02:38,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:02:38,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:02:38,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:02:38,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:02:38,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:02:38,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:02:38,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:02:38,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:02:38,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:02:38,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:02:38,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:02:38,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:02:38,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:02:38,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:02:38,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:02:38,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:02:38,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:02:38,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:02:38,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:02:38,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:02:38,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:02:38,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:02:38,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:02:38,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:02:38,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:02:38,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:02:38,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:02:38,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:02:38,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:02:38,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:02:38,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:02:38,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:02:38,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:02:38,980 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:02:38,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:02:38,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:02:38,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:02:38,982 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:02:38,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:02:38,982 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:02:38,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:02:38,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:02:38,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:02:38,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:02:38,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:02:38,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:02:38,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:02:38,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:02:38,986 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_9da78cda-229f-486d-adf6-2b37e09def69/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-12-07 18:02:39,156 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:02:39,165 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:02:39,167 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:02:39,168 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:02:39,169 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:02:39,169 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-12-07 18:02:39,207 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/40d03d66b/4d4b1707fe204480a20846afc686d6a9/FLAGe14d568ca [2019-12-07 18:02:39,602 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:02:39,603 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-12-07 18:02:39,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/40d03d66b/4d4b1707fe204480a20846afc686d6a9/FLAGe14d568ca [2019-12-07 18:02:39,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/data/40d03d66b/4d4b1707fe204480a20846afc686d6a9 [2019-12-07 18:02:39,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:02:39,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:02:39,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:02:39,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:02:39,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:02:39,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:02:39" (1/1) ... [2019-12-07 18:02:39,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440b73fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:39, skipping insertion in model container [2019-12-07 18:02:39,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:02:39" (1/1) ... [2019-12-07 18:02:39,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:02:40,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:02:40,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:02:40,112 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:02:40,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:02:40,150 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:02:40,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40 WrapperNode [2019-12-07 18:02:40,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:02:40,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:02:40,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:02:40,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:02:40,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:02:40,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:02:40,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:02:40,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:02:40,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... [2019-12-07 18:02:40,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:02:40,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:02:40,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:02:40,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:02:40,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 18:02:40,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:02:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:02:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:02:41,170 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:02:41,170 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 18:02:41,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:41 BoogieIcfgContainer [2019-12-07 18:02:41,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:02:41,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:02:41,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:02:41,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:02:41,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:02:39" (1/3) ... [2019-12-07 18:02:41,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7d4f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:02:41, skipping insertion in model container [2019-12-07 18:02:41,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:02:40" (2/3) ... [2019-12-07 18:02:41,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7d4f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:02:41, skipping insertion in model container [2019-12-07 18:02:41,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:41" (3/3) ... [2019-12-07 18:02:41,176 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-12-07 18:02:41,182 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:02:41,187 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:02:41,194 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:02:41,209 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:02:41,210 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:02:41,210 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:02:41,210 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:02:41,210 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:02:41,210 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:02:41,210 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:02:41,210 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:02:41,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-12-07 18:02:41,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:02:41,224 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:02:41,224 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:02:41,225 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:02:41,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:02:41,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-12-07 18:02:41,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:02:41,236 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781438679] [2019-12-07 18:02:41,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 18:02:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:02:41,311 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:02:41,314 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:02:41,324 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 18:02:41,324 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:02:41,327 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 18:02:41,328 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781438679] [2019-12-07 18:02:41,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:02:41,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:02:41,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589162373] [2019-12-07 18:02:41,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:02:41,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:02:41,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:02:41,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:02:41,342 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-12-07 18:02:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:02:41,356 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-12-07 18:02:41,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:02:41,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 18:02:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:02:41,365 INFO L225 Difference]: With dead ends: 66 [2019-12-07 18:02:41,365 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:02:41,368 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 18:02:41,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:02:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:02:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:02:41,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-12-07 18:02:41,394 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-12-07 18:02:41,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:02:41,395 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-12-07 18:02:41,395 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:02:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-12-07 18:02:41,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:02:41,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:02:41,396 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:02:41,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:02:41,597 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:02:41,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:02:41,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-12-07 18:02:41,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:02:41,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668846672] [2019-12-07 18:02:41,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 18:02:41,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:02:41,732 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 18:02:41,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:02:41,788 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 18:02:41,827 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 18:02:41,827 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:02:41,902 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 18:02:41,902 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668846672] [2019-12-07 18:02:41,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:02:41,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:02:41,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742948022] [2019-12-07 18:02:41,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:02:41,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:02:41,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:02:41,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:02:41,905 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-12-07 18:02:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:02:42,990 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-12-07 18:02:42,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:02:42,990 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-07 18:02:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:02:42,991 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:02:42,991 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 18:02:42,992 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:02:42,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 18:02:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 18:02:42,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 18:02:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-12-07 18:02:42,994 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-12-07 18:02:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:02:42,994 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-12-07 18:02:42,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:02:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-12-07 18:02:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 18:02:42,995 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:02:42,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:02:43,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:02:43,197 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:02:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:02:43,198 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-12-07 18:02:43,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:02:43,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924765199] [2019-12-07 18:02:43,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/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 18:02:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:02:43,367 INFO L264 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:02:43,369 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:02:43,450 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 18:02:43,450 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:02:43,560 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 18:02:43,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924765199] [2019-12-07 18:02:43,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:02:43,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:02:43,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437439871] [2019-12-07 18:02:43,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:02:43,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:02:43,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:02:43,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:02:43,562 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-12-07 18:02:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:02:43,727 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-12-07 18:02:43,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:02:43,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-12-07 18:02:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:02:43,729 INFO L225 Difference]: With dead ends: 21 [2019-12-07 18:02:43,729 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:02:43,729 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:02:43,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:02:43,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:02:43,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:02:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:02:43,730 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-12-07 18:02:43,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:02:43,730 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:02:43,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:02:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:02:43,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:02:43,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:02:43,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:02:44,027 INFO L246 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2019-12-07 18:02:44,027 INFO L246 CegarLoopResult]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 24) the Hoare annotation is: (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-12-07 18:02:44,028 INFO L246 CegarLoopResult]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L242 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L249 CegarLoopResult]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-12-07 18:02:44,029 INFO L246 CegarLoopResult]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L246 CegarLoopResult]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-12-07 18:02:44,030 INFO L242 CegarLoopResult]: At program point L76(lines 16 77) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|))) [2019-12-07 18:02:44,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:02:44 BoogieIcfgContainer [2019-12-07 18:02:44,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:02:44,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:02:44,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:02:44,042 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:02:44,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:02:41" (3/4) ... [2019-12-07 18:02:44,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:02:44,054 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 18:02:44,055 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 18:02:44,055 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:02:44,074 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2019-12-07 18:02:44,075 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-12-07 18:02:44,099 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9da78cda-229f-486d-adf6-2b37e09def69/bin/uautomizer/witness.graphml [2019-12-07 18:02:44,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:02:44,101 INFO L168 Benchmark]: Toolchain (without parser) took 4120.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 952.4 MB in the beginning and 959.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,102 INFO L168 Benchmark]: CDTParser took 0.14 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 18:02:44,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.93 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,103 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 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 18:02:44,103 INFO L168 Benchmark]: RCFGBuilder took 930.13 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,104 INFO L168 Benchmark]: TraceAbstraction took 2869.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,104 INFO L168 Benchmark]: Witness Printer took 57.80 ms. Allocated memory is still 1.2 GB. Free memory was 966.3 MB in the beginning and 959.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:02:44,105 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.93 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 936.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.39 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 930.13 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: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2869.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 107.7 MB). Peak memory consumption was 107.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.80 ms. Allocated memory is still 1.2 GB. Free memory was 966.3 MB in the beginning and 959.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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: 80]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - 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: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s 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, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s 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...