./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 0.1.24-cad4683 [2019-11-15 23:30:00,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:30:00,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:30:00,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:30:00,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:30:01,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:30:01,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:30:01,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:30:01,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:30:01,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:30:01,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:30:01,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:30:01,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:30:01,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:30:01,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:30:01,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:30:01,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:30:01,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:30:01,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:30:01,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:30:01,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:30:01,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:30:01,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:30:01,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:30:01,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:30:01,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:30:01,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:30:01,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:30:01,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:30:01,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:30:01,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:30:01,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:30:01,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:30:01,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:30:01,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:30:01,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:30:01,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:30:01,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:30:01,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:30:01,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:30:01,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:30:01,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:30:01,068 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:30:01,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:30:01,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:30:01,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:30:01,070 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:30:01,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:30:01,070 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:30:01,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:30:01,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:30:01,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:30:01,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:30:01,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:30:01,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:30:01,073 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:30:01,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:30:01,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:30:01,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:30:01,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:30:01,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:30:01,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:30:01,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:30:01,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:30:01,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:30:01,075 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:30:01,075 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:30:01,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:30:01,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:30:01,076 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:30:01,076 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_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:01,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:30:01,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:30:01,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:30:01,142 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:30:01,142 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:30:01,143 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-15 23:30:01,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/9ffc8d282/f0e0604b6a2f40648302176b2aa7f8ce/FLAG1580a2c7d [2019-11-15 23:30:01,584 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:30:01,585 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-15 23:30:01,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/9ffc8d282/f0e0604b6a2f40648302176b2aa7f8ce/FLAG1580a2c7d [2019-11-15 23:30:01,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/9ffc8d282/f0e0604b6a2f40648302176b2aa7f8ce [2019-11-15 23:30:01,603 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:30:01,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:30:01,605 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:30:01,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:30:01,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:30:01,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:30:01" (1/1) ... [2019-11-15 23:30:01,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62c6c6fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:01, skipping insertion in model container [2019-11-15 23:30:01,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:30:01" (1/1) ... [2019-11-15 23:30:01,618 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:30:01,640 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:30:01,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:30:01,971 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:30:02,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:30:02,044 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:30:02,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02 WrapperNode [2019-11-15 23:30:02,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:30:02,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:30:02,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:30:02,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:30:02,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:30:02,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:30:02,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:30:02,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:30:02,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... [2019-11-15 23:30:02,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:30:02,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:30:02,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:30:02,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:30:02,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-15 23:30:02,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-15 23:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:30:02,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:30:02,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 23:30:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:30:02,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:30:02,612 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:30:02,612 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 23:30:02,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:02 BoogieIcfgContainer [2019-11-15 23:30:02,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:30:02,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:30:02,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:30:02,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:30:02,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:30:01" (1/3) ... [2019-11-15 23:30:02,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fc01b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:30:02, skipping insertion in model container [2019-11-15 23:30:02,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:02" (2/3) ... [2019-11-15 23:30:02,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43fc01b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:30:02, skipping insertion in model container [2019-11-15 23:30:02,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:02" (3/3) ... [2019-11-15 23:30:02,621 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-15 23:30:02,630 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:30:02,636 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:30:02,647 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:30:02,666 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:30:02,666 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:30:02,666 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:30:02,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:30:02,667 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:30:02,667 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:30:02,667 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:30:02,667 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:30:02,679 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-15 23:30:02,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:30:02,683 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:30:02,684 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:30:02,685 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:30:02,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:30:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-15 23:30:02,695 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:30:02,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348769513] [2019-11-15 23:30:02,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:30:02,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:30:02,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:30:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:30:02,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:02,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348769513] [2019-11-15 23:30:02,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:30:02,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:30:02,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626706851] [2019-11-15 23:30:02,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:30:02,792 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:30:02,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:30:02,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:30:02,807 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-15 23:30:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:30:02,823 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-15 23:30:02,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:30:02,824 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 23:30:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:30:02,833 INFO L225 Difference]: With dead ends: 66 [2019-11-15 23:30:02,833 INFO L226 Difference]: Without dead ends: 31 [2019-11-15 23:30:02,836 INFO L600 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 [2019-11-15 23:30:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-15 23:30:02,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-15 23:30:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 23:30:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-15 23:30:02,868 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-15 23:30:02,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:30:02,869 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-15 23:30:02,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:30:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-15 23:30:02,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:30:02,870 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:30:02,870 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:30:02,870 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:30:02,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:30:02,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-15 23:30:02,871 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:30:02,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334353159] [2019-11-15 23:30:02,871 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:30:02,871 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:30:02,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:30:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:30:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:30:02,966 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:30:02,966 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:30:02,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:30:02 BoogieIcfgContainer [2019-11-15 23:30:02,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:30:02,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:30:02,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:30:02,994 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:30:02,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:02" (3/4) ... [2019-11-15 23:30:02,998 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:30:02,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:30:03,000 INFO L168 Benchmark]: Toolchain (without parser) took 1395.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:03,001 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:30:03,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:03,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:03,003 INFO L168 Benchmark]: Boogie Preprocessor took 31.02 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. [2019-11-15 23:30:03,003 INFO L168 Benchmark]: RCFGBuilder took 493.33 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:03,004 INFO L168 Benchmark]: TraceAbstraction took 379.07 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:03,004 INFO L168 Benchmark]: Witness Printer took 4.36 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. [2019-11-15 23:30:03,007 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 440.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -201.1 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.84 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.02 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 493.33 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 379.07 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.36 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. * 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: 0.3s, 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 0.1.24-cad4683 [2019-11-15 23:30:05,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:30:05,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:30:05,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:30:05,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:30:05,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:30:05,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:30:05,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:30:05,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:30:05,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:30:05,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:30:05,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:30:05,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:30:05,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:30:05,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:30:05,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:30:05,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:30:05,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:30:05,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:30:05,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:30:05,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:30:05,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:30:05,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:30:05,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:30:05,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:30:05,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:30:05,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:30:05,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:30:05,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:30:05,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:30:05,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:30:05,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:30:05,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:30:05,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:30:05,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:30:05,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:30:05,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:30:05,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:30:05,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:30:05,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:30:05,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:30:05,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:30:05,282 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:30:05,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:30:05,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:30:05,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:30:05,283 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:30:05,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:30:05,284 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:30:05,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:30:05,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:30:05,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:30:05,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:30:05,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:30:05,292 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:30:05,292 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:30:05,292 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:30:05,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:30:05,293 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:30:05,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:30:05,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:30:05,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:30:05,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:30:05,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:30:05,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:30:05,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:30:05,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:30:05,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:30:05,296 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:30:05,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:30:05,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:30:05,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:30:05,297 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_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:05,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:30:05,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:30:05,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:30:05,359 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:30:05,360 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:30:05,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-15 23:30:05,413 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/47fc79592/5b72a0a2d0314f14ba12b2f7bd969900/FLAG7d93d2cd7 [2019-11-15 23:30:05,770 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:30:05,771 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2019-11-15 23:30:05,778 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/47fc79592/5b72a0a2d0314f14ba12b2f7bd969900/FLAG7d93d2cd7 [2019-11-15 23:30:06,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/data/47fc79592/5b72a0a2d0314f14ba12b2f7bd969900 [2019-11-15 23:30:06,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:30:06,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:30:06,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:30:06,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:30:06,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:30:06,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fbf043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06, skipping insertion in model container [2019-11-15 23:30:06,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,181 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:30:06,199 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:30:06,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:30:06,407 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:30:06,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:30:06,518 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:30:06,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06 WrapperNode [2019-11-15 23:30:06,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:30:06,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:30:06,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:30:06,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:30:06,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:30:06,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:30:06,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:30:06,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:30:06,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... [2019-11-15 23:30:06,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:30:06,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:30:06,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:30:06,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:30:06,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-15 23:30:06,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 23:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-15 23:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:30:06,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:30:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-15 23:30:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:30:07,783 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:30:07,784 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 23:30:07,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:07 BoogieIcfgContainer [2019-11-15 23:30:07,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:30:07,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:30:07,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:30:07,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:30:07,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:30:06" (1/3) ... [2019-11-15 23:30:07,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4bf666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:30:07, skipping insertion in model container [2019-11-15 23:30:07,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:30:06" (2/3) ... [2019-11-15 23:30:07,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4bf666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:30:07, skipping insertion in model container [2019-11-15 23:30:07,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:07" (3/3) ... [2019-11-15 23:30:07,790 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2019-11-15 23:30:07,797 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:30:07,804 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:30:07,814 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:30:07,831 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:30:07,831 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:30:07,831 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:30:07,831 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:30:07,832 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:30:07,832 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:30:07,832 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:30:07,832 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:30:07,843 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-15 23:30:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-15 23:30:07,848 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:30:07,848 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:30:07,850 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:30:07,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:30:07,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-15 23:30:07,862 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:30:07,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191251823] [2019-11-15 23:30:07,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:30:07,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 23:30:07,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:30:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:07,953 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:30:07,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:07,958 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191251823] [2019-11-15 23:30:07,958 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:30:07,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 23:30:07,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969233008] [2019-11-15 23:30:07,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:30:07,962 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:30:07,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:30:07,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:30:07,973 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-15 23:30:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:30:07,992 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-15 23:30:07,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:30:07,993 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-15 23:30:07,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:30:08,003 INFO L225 Difference]: With dead ends: 66 [2019-11-15 23:30:08,004 INFO L226 Difference]: Without dead ends: 31 [2019-11-15 23:30:08,007 INFO L600 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 [2019-11-15 23:30:08,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-15 23:30:08,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-15 23:30:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-15 23:30:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-15 23:30:08,042 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-15 23:30:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:30:08,042 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-15 23:30:08,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:30:08,043 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-15 23:30:08,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-15 23:30:08,044 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:30:08,044 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:30:08,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:30:08,257 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:30:08,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:30:08,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-15 23:30:08,260 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:30:08,262 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636172689] [2019-11-15 23:30:08,262 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:30:08,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-15 23:30:08,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:30:08,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:08,428 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:30:08,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:08,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636172689] [2019-11-15 23:30:08,486 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:30:08,486 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2019-11-15 23:30:08,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824742900] [2019-11-15 23:30:08,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:30:08,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:30:08,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:30:08,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:30:08,494 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 8 states. [2019-11-15 23:30:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:30:09,204 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-15 23:30:09,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:30:09,205 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2019-11-15 23:30:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:30:09,206 INFO L225 Difference]: With dead ends: 42 [2019-11-15 23:30:09,206 INFO L226 Difference]: Without dead ends: 21 [2019-11-15 23:30:09,207 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-15 23:30:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-15 23:30:09,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-15 23:30:09,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-15 23:30:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-15 23:30:09,211 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-15 23:30:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:30:09,211 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-15 23:30:09,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:30:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-15 23:30:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-15 23:30:09,212 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:30:09,213 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:30:09,431 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-15 23:30:09,431 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:30:09,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:30:09,431 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-15 23:30:09,432 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:30:09,432 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682975186] [2019-11-15 23:30:09,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/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 [2019-11-15 23:30:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:30:09,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 23:30:09,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 23:30:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:09,660 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 23:30:09,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:30:09,775 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682975186] [2019-11-15 23:30:09,775 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:30:09,776 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 23:30:09,776 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368302528] [2019-11-15 23:30:09,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:30:09,777 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 23:30:09,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:30:09,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:30:09,777 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-15 23:30:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:30:09,915 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-15 23:30:09,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:30:09,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-15 23:30:09,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:30:09,917 INFO L225 Difference]: With dead ends: 21 [2019-11-15 23:30:09,917 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:30:09,918 INFO L600 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 [2019-11-15 23:30:09,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:30:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:30:09,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:30:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:30:09,919 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-15 23:30:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:30:09,919 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:30:09,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:30:09,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:30:09,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:30:10,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-15 23:30:10,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 23:30:10,197 INFO L443 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2019-11-15 23:30:10,197 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2019-11-15 23:30:10,197 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2019-11-15 23:30:10,197 INFO L443 ceAbstractionStarter]: For program point L94(lines 94 97) no Hoare annotation was computed. [2019-11-15 23:30:10,197 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2019-11-15 23:30:10,198 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2019-11-15 23:30:10,199 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2019-11-15 23:30:10,199 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2019-11-15 23:30:10,199 INFO L443 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-15 23:30:10,200 INFO L439 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (= ULTIMATE.start_ceil_double_~x (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2019-11-15 23:30:10,200 INFO L443 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-15 23:30:10,200 INFO L439 ceAbstractionStarter]: At program point L80(lines 19 81) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2019-11-15 23:30:10,200 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2019-11-15 23:30:10,201 INFO L439 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= ULTIMATE.start_ceil_double_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= |ULTIMATE.start_ceil_double_#res| .cse0))) [2019-11-15 23:30:10,201 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-11-15 23:30:10,201 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 23:30:10,201 INFO L443 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2019-11-15 23:30:10,201 INFO L443 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2019-11-15 23:30:10,201 INFO L443 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2019-11-15 23:30:10,203 INFO L446 ceAbstractionStarter]: At program point L99(lines 83 100) the Hoare annotation is: true [2019-11-15 23:30:10,203 INFO L443 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2019-11-15 23:30:10,203 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 23:30:10,203 INFO L443 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-15 23:30:10,203 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2019-11-15 23:30:10,203 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-15 23:30:10,204 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2019-11-15 23:30:10,204 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2019-11-15 23:30:10,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,228 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:30:10 BoogieIcfgContainer [2019-11-15 23:30:10,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:30:10,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:30:10,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:30:10,247 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:30:10,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:30:07" (3/4) ... [2019-11-15 23:30:10,251 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:30:10,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 23:30:10,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-15 23:30:10,300 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:30:10,300 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-11-15 23:30:10,334 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c7039a5b-bedb-4827-bea0-282ce8407d0b/bin/uautomizer/witness.graphml [2019-11-15 23:30:10,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:30:10,337 INFO L168 Benchmark]: Toolchain (without parser) took 4169.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 947.0 MB in the beginning and 1.0 GB in the end (delta: -72.8 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,337 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:30:10,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -203.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,339 INFO L168 Benchmark]: Boogie Preprocessor took 29.62 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. [2019-11-15 23:30:10,339 INFO L168 Benchmark]: RCFGBuilder took 1186.31 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,340 INFO L168 Benchmark]: TraceAbstraction took 2460.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.5 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,340 INFO L168 Benchmark]: Witness Printer took 88.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:30:10,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -203.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.62 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 1186.31 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: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2460.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 92.5 MB). Peak memory consumption was 92.5 MB. Max. memory is 11.5 GB. * Witness Printer took 88.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 [2019-11-15 23:30:10,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 19]: Loop Invariant [2019-11-15 23:30:10,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-15 23:30:10,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-15 23:30:10,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s 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, 36 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 4 QuantifiedInterpolants, 3206 SizeOfPredicates, 14 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...