./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 4c57c239736851c67037a19023adceb82e24847c ................................................................................................................................................................................................................................................................................................................ 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_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 4c57c239736851c67037a19023adceb82e24847c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:04:08,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:04:08,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:04:08,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:04:08,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:04:08,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:04:08,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:04:08,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:04:08,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:04:08,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:04:08,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:04:08,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:04:08,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:04:08,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:04:08,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:04:08,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:04:08,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:04:08,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:04:08,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:04:08,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:04:08,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:04:08,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:04:08,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:04:08,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:04:08,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:04:08,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:04:08,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:04:08,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:04:08,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:04:08,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:04:08,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:04:08,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:04:08,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:04:08,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:04:08,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:04:08,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:04:08,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:04:08,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:04:08,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:04:08,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:04:08,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:04:08,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:04:08,269 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:04:08,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:04:08,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:04:08,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:04:08,281 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:04:08,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:04:08,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:04:08,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:04:08,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:04:08,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:04:08,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:04:08,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:04:08,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:04:08,283 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:04:08,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:04:08,284 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:04:08,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:04:08,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:04:08,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:04:08,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:04:08,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:04:08,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:04:08,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:04:08,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:04:08,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:04:08,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:04:08,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:04:08,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:04:08,286 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_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-11-20 00:04:08,445 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:04:08,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:04:08,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:04:08,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:04:08,464 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:04:08,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-20 00:04:08,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/7b605be28/6a0f5b8e49564d058b9b2d4332670813/FLAG635b45d82 [2019-11-20 00:04:08,922 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:04:08,923 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-20 00:04:08,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/7b605be28/6a0f5b8e49564d058b9b2d4332670813/FLAG635b45d82 [2019-11-20 00:04:09,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/7b605be28/6a0f5b8e49564d058b9b2d4332670813 [2019-11-20 00:04:09,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:04:09,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:04:09,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:04:09,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:04:09,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:04:09,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18448f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09, skipping insertion in model container [2019-11-20 00:04:09,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,364 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:04:09,383 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:04:09,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:04:09,705 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:04:09,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:04:09,765 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:04:09,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09 WrapperNode [2019-11-20 00:04:09,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:04:09,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:04:09,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:04:09,767 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:04:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:04:09,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:04:09,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:04:09,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:04:09,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... [2019-11-20 00:04:09,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:04:09,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:04:09,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:04:09,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:04:09,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 [2019-11-20 00:04:09,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:04:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 00:04:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:04:09,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 00:04:09,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:04:09,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:04:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:04:09,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 00:04:09,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:04:10,361 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:04:10,361 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 00:04:10,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:10 BoogieIcfgContainer [2019-11-20 00:04:10,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:04:10,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:04:10,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:04:10,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:04:10,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:09" (1/3) ... [2019-11-20 00:04:10,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97c5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:10, skipping insertion in model container [2019-11-20 00:04:10,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:09" (2/3) ... [2019-11-20 00:04:10,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97c5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:10, skipping insertion in model container [2019-11-20 00:04:10,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:10" (3/3) ... [2019-11-20 00:04:10,368 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-11-20 00:04:10,377 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:04:10,383 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:04:10,393 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:04:10,413 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:04:10,413 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:04:10,413 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:04:10,413 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:04:10,414 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:04:10,414 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:04:10,414 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:04:10,414 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:04:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-20 00:04:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:04:10,431 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:10,432 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:10,432 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:10,436 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-20 00:04:10,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:04:10,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668902199] [2019-11-20 00:04:10,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:04:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:10,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:10,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668902199] [2019-11-20 00:04:10,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:10,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:04:10,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519190267] [2019-11-20 00:04:10,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:04:10,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:04:10,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:04:10,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:04:10,590 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-20 00:04:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:10,607 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-20 00:04:10,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:04:10,609 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 00:04:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:10,618 INFO L225 Difference]: With dead ends: 76 [2019-11-20 00:04:10,618 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 00:04:10,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:04:10,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 00:04:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-20 00:04:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 00:04:10,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-20 00:04:10,651 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-20 00:04:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:10,652 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-20 00:04:10,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:04:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-20 00:04:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 00:04:10,653 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:10,653 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:10,653 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:10,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-20 00:04:10,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:04:10,654 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823735975] [2019-11-20 00:04:10,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:04:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:04:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:04:10,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:04:10,782 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:04:10,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:04:10 BoogieIcfgContainer [2019-11-20 00:04:10,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:04:10,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:04:10,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:04:10,817 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:04:10,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:10" (3/4) ... [2019-11-20 00:04:10,821 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:04:10,821 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:04:10,823 INFO L168 Benchmark]: Toolchain (without parser) took 1470.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:10,823 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-20 00:04:10,824 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:10,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:10,825 INFO L168 Benchmark]: Boogie Preprocessor took 48.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:04:10,825 INFO L168 Benchmark]: RCFGBuilder took 498.79 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:10,826 INFO L168 Benchmark]: TraceAbstraction took 453.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:10,826 INFO L168 Benchmark]: Witness Printer took 3.91 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. [2019-11-20 00:04:10,829 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 414.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 498.79 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 453.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 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: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = 0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L159] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 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=39occurred 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, 24 NumberOfCodeBlocks, 24 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 0.1.24-678e011 [2019-11-20 00:04:12,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:04:12,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:04:12,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-20 00:04:12,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:04:12,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:04:12,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:04:12,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:04:12,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:04:12,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:04:12,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:04:12,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:04:12,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:04:12,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:04:12,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:04:12,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:04:12,637 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:04:12,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:04:12,648 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:04:12,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:04:12,648 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:04:12,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:04:12,649 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:04:12,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:04:12,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:04:12,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:04:12,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:04:12,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:04:12,650 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:04:12,650 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:04:12,651 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:04:12,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:04:12,651 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:04:12,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:04:12,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:04:12,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:04:12,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:04:12,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:04:12,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:04:12,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:04:12,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:04:12,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:04:12,654 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:04:12,654 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:04:12,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:04:12,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:04:12,655 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_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 -> 4c57c239736851c67037a19023adceb82e24847c [2019-11-20 00:04:12,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:04:12,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:04:12,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:04:12,986 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:04:12,987 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:04:12,988 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-20 00:04:13,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/0deeecda2/67b0be59dd834957979c0b9a4f5ceede/FLAGb665b6957 [2019-11-20 00:04:13,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:04:13,449 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/sv-benchmarks/c/float-newlib/double_req_bl_0620b.c [2019-11-20 00:04:13,455 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/0deeecda2/67b0be59dd834957979c0b9a4f5ceede/FLAGb665b6957 [2019-11-20 00:04:13,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/data/0deeecda2/67b0be59dd834957979c0b9a4f5ceede [2019-11-20 00:04:13,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:04:13,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:04:13,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:04:13,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:04:13,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:04:13,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:13" (1/1) ... [2019-11-20 00:04:13,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1465c804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:13, skipping insertion in model container [2019-11-20 00:04:13,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:04:13" (1/1) ... [2019-11-20 00:04:13,844 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:04:13,868 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:04:14,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:04:14,122 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:04:14,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:04:14,287 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:04:14,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14 WrapperNode [2019-11-20 00:04:14,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:04:14,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:04:14,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:04:14,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:04:14,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:04:14,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:04:14,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:04:14,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:04:14,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... [2019-11-20 00:04:14,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:04:14,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:04:14,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:04:14,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:04:14,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 [2019-11-20 00:04:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 00:04:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 00:04:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:04:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-20 00:04:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:04:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:04:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:04:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:04:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:04:31,506 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:04:31,506 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-20 00:04:31,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:31 BoogieIcfgContainer [2019-11-20 00:04:31,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:04:31,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:04:31,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:04:31,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:04:31,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:04:13" (1/3) ... [2019-11-20 00:04:31,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb79865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:31, skipping insertion in model container [2019-11-20 00:04:31,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:04:14" (2/3) ... [2019-11-20 00:04:31,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb79865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:04:31, skipping insertion in model container [2019-11-20 00:04:31,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:31" (3/3) ... [2019-11-20 00:04:31,513 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620b.c [2019-11-20 00:04:31,519 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:04:31,527 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:04:31,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:04:31,554 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:04:31,555 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:04:31,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:04:31,555 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:04:31,555 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:04:31,555 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:04:31,555 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:04:31,555 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:04:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-20 00:04:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:04:31,571 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:31,572 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:31,572 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:31,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-20 00:04:31,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:04:31,585 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554929123] [2019-11-20 00:04:31,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 [2019-11-20 00:04:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:31,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 00:04:31,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:04:31,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:31,871 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:04:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:31,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554929123] [2019-11-20 00:04:31,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:31,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:04:31,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129089110] [2019-11-20 00:04:31,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:04:31,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:04:31,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:04:31,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:04:31,892 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-20 00:04:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:31,907 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-20 00:04:31,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:04:31,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 00:04:31,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:31,917 INFO L225 Difference]: With dead ends: 76 [2019-11-20 00:04:31,917 INFO L226 Difference]: Without dead ends: 36 [2019-11-20 00:04:31,920 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:04:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-20 00:04:31,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-20 00:04:31,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 00:04:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-20 00:04:31,950 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-20 00:04:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:31,950 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-20 00:04:31,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:04:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-20 00:04:31,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 00:04:31,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:31,952 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:32,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 00:04:32,165 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-20 00:04:32,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:04:32,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818192255] [2019-11-20 00:04:32,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 [2019-11-20 00:04:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:32,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 00:04:32,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:04:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:32,490 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:04:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:32,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818192255] [2019-11-20 00:04:32,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:32,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 00:04:32,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850609505] [2019-11-20 00:04:32,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:04:32,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:04:32,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:04:32,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:04:32,581 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-11-20 00:04:40,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:40,867 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-20 00:04:40,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:04:40,869 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-20 00:04:40,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:40,870 INFO L225 Difference]: With dead ends: 59 [2019-11-20 00:04:40,870 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 00:04:40,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 00:04:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 00:04:40,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-20 00:04:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 00:04:40,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-20 00:04:40,876 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-11-20 00:04:40,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:40,876 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-20 00:04:40,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:04:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-20 00:04:40,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 00:04:40,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:40,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:41,097 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 00:04:41,097 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-11-20 00:04:41,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:04:41,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501413577] [2019-11-20 00:04:41,099 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/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 [2019-11-20 00:04:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:41,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:04:41,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:04:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:41,409 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:04:41,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:04:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:41,449 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [501413577] [2019-11-20 00:04:41,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:41,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 00:04:41,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212338861] [2019-11-20 00:04:41,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 00:04:41,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:04:41,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 00:04:41,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:04:41,451 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-20 00:04:49,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:49,907 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 00:04:49,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:04:49,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-20 00:04:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:49,909 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:04:49,909 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 00:04:49,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 00:04:49,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 00:04:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-20 00:04:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 00:04:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-20 00:04:49,922 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-20 00:04:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:49,923 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-20 00:04:49,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 00:04:49,923 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-20 00:04:49,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 00:04:49,924 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:49,924 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:50,128 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 00:04:50,129 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:50,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:50,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-11-20 00:04:50,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:04:50,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12099406] [2019-11-20 00:04:50,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 00:04:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:54,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:04:54,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:04:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:54,537 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:04:55,354 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-20 00:04:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:55,524 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12099406] [2019-11-20 00:04:55,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:55,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 00:04:55,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595727054] [2019-11-20 00:04:55,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:04:55,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:04:55,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:04:55,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:04:55,525 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-20 00:04:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:55,716 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-20 00:04:55,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 00:04:55,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-20 00:04:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:55,729 INFO L225 Difference]: With dead ends: 32 [2019-11-20 00:04:55,729 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 00:04:55,729 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:04:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 00:04:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 00:04:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 00:04:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-20 00:04:55,732 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-20 00:04:55,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:55,733 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-20 00:04:55,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:04:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-20 00:04:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 00:04:55,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:04:55,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:04:55,934 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 00:04:55,934 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:04:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:04:55,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-11-20 00:04:55,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:04:55,936 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488025296] [2019-11-20 00:04:55,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-20 00:04:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:04:56,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 00:04:56,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:04:56,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:04:56,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:56,330 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:04:56,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:04:56,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:04:56,539 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1488025296] [2019-11-20 00:04:56,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:04:56,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-20 00:04:56,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198395511] [2019-11-20 00:04:56,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 00:04:56,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:04:56,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 00:04:56,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-20 00:04:56,541 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-20 00:04:56,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:04:56,849 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-20 00:04:56,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 00:04:56,850 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-20 00:04:56,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:04:56,850 INFO L225 Difference]: With dead ends: 18 [2019-11-20 00:04:56,850 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:04:56,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 00:04:56,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:04:56,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:04:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:04:56,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:04:56,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-20 00:04:56,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:04:56,852 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:04:56,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 00:04:56,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:04:56,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:04:57,053 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 00:04:57,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:04:57,255 INFO L444 ceAbstractionStarter]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-11-20 00:04:57,255 INFO L444 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2019-11-20 00:04:57,255 INFO L444 ceAbstractionStarter]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-11-20 00:04:57,255 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-20 00:04:57,256 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-20 00:04:57,256 INFO L440 ceAbstractionStarter]: At program point L143(lines 134 144) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((v_skolemized_v_prenex_22_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_22_3) ((_ extract 62 52) v_skolemized_v_prenex_22_3) ((_ extract 51 0) v_skolemized_v_prenex_22_3))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_22_3)))) (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-20 00:04:57,256 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:04:57,256 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:04:57,256 INFO L444 ceAbstractionStarter]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-11-20 00:04:57,256 INFO L440 ceAbstractionStarter]: At program point L137-2(lines 137 141) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) |ULTIMATE.start_main_#t~short31| (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-20 00:04:57,256 INFO L444 ceAbstractionStarter]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L440 ceAbstractionStarter]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L447 ceAbstractionStarter]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L444 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-11-20 00:04:57,257 INFO L440 ceAbstractionStarter]: At program point L130-3(lines 64 132) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-11-20 00:04:57,258 INFO L444 ceAbstractionStarter]: For program point L158(line 158) no Hoare annotation was computed. [2019-11-20 00:04:57,259 INFO L444 ceAbstractionStarter]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-11-20 00:04:57,259 INFO L444 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-20 00:04:57,259 INFO L440 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-20 00:04:57,259 INFO L444 ceAbstractionStarter]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-11-20 00:04:57,259 INFO L444 ceAbstractionStarter]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-11-20 00:04:57,259 INFO L440 ceAbstractionStarter]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (_ +zero 11 53)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-20 00:04:57,267 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,274 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,275 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,277 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,278 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,279 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,280 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:04:57 BoogieIcfgContainer [2019-11-20 00:04:57,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:04:57,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:04:57,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:04:57,286 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:04:57,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:04:31" (3/4) ... [2019-11-20 00:04:57,289 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:04:57,301 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-20 00:04:57,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 00:04:57,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:04:57,325 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~Pluszero~LONGDOUBLE() == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-20 00:04:57,326 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-20 00:04:57,326 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0bv32 && (\exists v_skolemized_v_prenex_22_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) && msw == v_skolemized_v_prenex_22_3[63:32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-20 00:04:57,363 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0ec660d4-6fca-4107-bdc1-f67f3a443d64/bin/uautomizer/witness.graphml [2019-11-20 00:04:57,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:04:57,365 INFO L168 Benchmark]: Toolchain (without parser) took 43534.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 961.8 MB in the beginning and 850.8 MB in the end (delta: 111.0 MB). Peak memory consumption was 232.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,365 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:04:57,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 456.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,366 INFO L168 Benchmark]: Boogie Preprocessor took 57.16 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. [2019-11-20 00:04:57,366 INFO L168 Benchmark]: RCFGBuilder took 17111.02 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,367 INFO L168 Benchmark]: TraceAbstraction took 25777.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.6 MB in the end (delta: 205.0 MB). Peak memory consumption was 205.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,367 INFO L168 Benchmark]: Witness Printer took 77.89 ms. Allocated memory is still 1.2 GB. Free memory was 857.6 MB in the beginning and 850.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:04:57,369 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 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 456.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.16 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 17111.02 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25777.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 857.6 MB in the end (delta: 205.0 MB). Peak memory consumption was 205.0 MB. Max. memory is 11.5 GB. * Witness Printer took 77.89 ms. Allocated memory is still 1.2 GB. Free memory was 857.6 MB in the beginning and 850.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - 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: 159]: 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: 64]: Loop Invariant [2019-11-20 00:04:57,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~Pluszero~LONGDOUBLE() == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 134]: Loop Invariant [2019-11-20 00:04:57,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,378 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-20 00:04:57,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((\result == 0bv32 && (\exists v_skolemized_v_prenex_22_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) && msw == v_skolemized_v_prenex_22_3[63:32])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-11-20 00:04:57,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && res == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 68]: Loop Invariant [2019-11-20 00:04:57,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:04:57,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 25.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 17.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 76 SolverSat, 13 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 15.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 101 HoareAnnotationTreeSize, 8 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 8841 SizeOfPredicates, 27 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...