./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/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 b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 .............................................................................................................................................................................................................................................................................................................................................................. 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_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/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 b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 11:30:39,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:30:39,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:30:39,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:30:39,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:30:39,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:30:39,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:30:39,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:30:39,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:30:39,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:30:39,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:30:39,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:30:39,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:30:39,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:30:39,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:30:39,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:30:39,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:30:39,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:30:39,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:30:39,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:30:39,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:30:39,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:30:39,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:30:39,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:30:39,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:30:39,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:30:39,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:30:39,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:30:39,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:30:39,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:30:39,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:30:39,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:30:39,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:30:39,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:30:39,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:30:39,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:30:39,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:30:39,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:30:39,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:30:39,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:30:39,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:30:39,178 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 11:30:39,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:30:39,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:30:39,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:30:39,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:30:39,188 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:30:39,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:30:39,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:30:39,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:30:39,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:30:39,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:30:39,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:30:39,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 11:30:39,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:30:39,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:30:39,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:30:39,191 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_53ab054c-1f47-40b4-8706-57619df9cd97/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 -> b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 [2019-12-07 11:30:39,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:30:39,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:30:39,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:30:39,303 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:30:39,304 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:30:39,304 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-12-07 11:30:39,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/fb8558b3c/df86aec540024266b8fef678622b26c1/FLAG96f327a98 [2019-12-07 11:30:39,766 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:30:39,766 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-12-07 11:30:39,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/fb8558b3c/df86aec540024266b8fef678622b26c1/FLAG96f327a98 [2019-12-07 11:30:39,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/fb8558b3c/df86aec540024266b8fef678622b26c1 [2019-12-07 11:30:39,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:30:39,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:30:39,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:30:39,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:30:39,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:30:39,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:39,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408e5454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39, skipping insertion in model container [2019-12-07 11:30:39,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:39,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:30:39,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:30:39,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:30:39,964 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:30:39,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:30:39,997 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:30:39,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39 WrapperNode [2019-12-07 11:30:39,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:30:39,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:30:39,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:30:39,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:30:40,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:30:40,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:30:40,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:30:40,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:30:40,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... [2019-12-07 11:30:40,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:30:40,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:30:40,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:30:40,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:30:40,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:30:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:30:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 11:30:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:30:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:30:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:30:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:30:40,291 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:30:40,292 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 11:30:40,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:40 BoogieIcfgContainer [2019-12-07 11:30:40,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:30:40,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:30:40,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:30:40,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:30:40,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:30:39" (1/3) ... [2019-12-07 11:30:40,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133a3864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:30:40, skipping insertion in model container [2019-12-07 11:30:40,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:39" (2/3) ... [2019-12-07 11:30:40,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133a3864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:30:40, skipping insertion in model container [2019-12-07 11:30:40,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:40" (3/3) ... [2019-12-07 11:30:40,298 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2019-12-07 11:30:40,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:30:40,310 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:30:40,317 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:30:40,332 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:30:40,332 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:30:40,332 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:30:40,332 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:30:40,332 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:30:40,332 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:30:40,332 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:30:40,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:30:40,342 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 11:30:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:30:40,346 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:40,346 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:40,346 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:40,350 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-12-07 11:30:40,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:30:40,355 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116785418] [2019-12-07 11:30:40,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:30:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:40,432 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116785418] [2019-12-07 11:30:40,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:40,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:30:40,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474764627] [2019-12-07 11:30:40,437 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:30:40,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:30:40,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:30:40,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:30:40,447 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 11:30:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:40,459 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-12-07 11:30:40,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:30:40,460 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 11:30:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:40,467 INFO L225 Difference]: With dead ends: 62 [2019-12-07 11:30:40,467 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 11:30:40,469 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:30:40,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 11:30:40,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 11:30:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 11:30:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-12-07 11:30:40,492 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-12-07 11:30:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:40,493 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-12-07 11:30:40,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:30:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-12-07 11:30:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:30:40,494 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:40,494 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:40,494 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:40,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:40,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-12-07 11:30:40,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:30:40,495 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179943422] [2019-12-07 11:30:40,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:30:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:40,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179943422] [2019-12-07 11:30:40,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:40,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 11:30:40,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783647342] [2019-12-07 11:30:40,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:30:40,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:30:40,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:30:40,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:30:40,545 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2019-12-07 11:30:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:40,581 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2019-12-07 11:30:40,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:30:40,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 11:30:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:40,582 INFO L225 Difference]: With dead ends: 53 [2019-12-07 11:30:40,583 INFO L226 Difference]: Without dead ends: 44 [2019-12-07 11:30:40,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:30:40,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-07 11:30:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2019-12-07 11:30:40,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 11:30:40,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 11:30:40,588 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-12-07 11:30:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:40,588 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 11:30:40,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:30:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 11:30:40,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:30:40,589 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:40,589 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:40,589 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:40,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:40,589 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2019-12-07 11:30:40,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:30:40,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190252280] [2019-12-07 11:30:40,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:30:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:40,622 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190252280] [2019-12-07 11:30:40,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:40,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 11:30:40,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469099339] [2019-12-07 11:30:40,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:30:40,623 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 11:30:40,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:30:40,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:30:40,623 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2019-12-07 11:30:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:40,656 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2019-12-07 11:30:40,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:30:40,657 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 11:30:40,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:40,658 INFO L225 Difference]: With dead ends: 55 [2019-12-07 11:30:40,658 INFO L226 Difference]: Without dead ends: 46 [2019-12-07 11:30:40,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 11:30:40,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-07 11:30:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2019-12-07 11:30:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 11:30:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 11:30:40,663 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2019-12-07 11:30:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:40,663 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 11:30:40,663 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:30:40,663 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 11:30:40,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:30:40,664 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:40,664 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:40,664 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:40,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:40,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-12-07 11:30:40,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 11:30:40,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395204611] [2019-12-07 11:30:40,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:30:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:30:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 11:30:40,722 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 11:30:40,722 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 11:30:40,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:30:40 BoogieIcfgContainer [2019-12-07 11:30:40,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:30:40,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:30:40,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:30:40,742 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:30:40,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:40" (3/4) ... [2019-12-07 11:30:40,745 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 11:30:40,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:30:40,747 INFO L168 Benchmark]: Toolchain (without parser) took 964.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -61.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:40,747 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:40,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:40,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:40,749 INFO L168 Benchmark]: Boogie Preprocessor took 20.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:40,749 INFO L168 Benchmark]: RCFGBuilder took 245.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:40,750 INFO L168 Benchmark]: TraceAbstraction took 448.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:40,750 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:40,752 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 448.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.25 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 85]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 79. Possible FailurePath: [L79] double x = -0.0; [L80] double y = 0.0; [L24] __uint32_t msw, lsw; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (msw) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lsw) = ew_u.parts.lsw [L33-L34] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L36-L37] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L39-L40] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L43-L44] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L47] return 0; [L52] COND TRUE __fpclassify_double(x) == 0 [L53] return y; [L81] double res = fmax_double(x, y); [L84] EXPR res == 0.0 && __signbit_double(res) == 0 [L84] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L85] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 32 SDslu, 140 SDs, 0 SdLazy, 30 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 11:30:42,211 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-12-07 11:30:42,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:30:42,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:30:42,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:30:42,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:30:42,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:30:42,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:30:42,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:30:42,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:30:42,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:30:42,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:30:42,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:30:42,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:30:42,229 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:30:42,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:30:42,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:30:42,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:30:42,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:30:42,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:30:42,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:30:42,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:30:42,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:30:42,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:30:42,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:30:42,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:30:42,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:30:42,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:30:42,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:30:42,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:30:42,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:30:42,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:30:42,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:30:42,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:30:42,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:30:42,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:30:42,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:30:42,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:30:42,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:30:42,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 11:30:42,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:30:42,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:30:42,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 11:30:42,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 11:30:42,255 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 11:30:42,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 11:30:42,256 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:30:42,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 11:30:42,257 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:30:42,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 11:30:42,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:30:42,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:30:42,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:30:42,259 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_53ab054c-1f47-40b4-8706-57619df9cd97/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 -> b649b8f673a0a47da0b16e77db6ba5e693ee3ba7 [2019-12-07 11:30:42,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:30:42,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:30:42,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:30:42,444 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:30:42,444 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:30:42,444 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-12-07 11:30:42,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/76de56ee1/521f23db8f0f450e8cc8b863055bb97b/FLAGf3affabe1 [2019-12-07 11:30:42,930 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:30:42,930 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2019-12-07 11:30:42,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/76de56ee1/521f23db8f0f450e8cc8b863055bb97b/FLAGf3affabe1 [2019-12-07 11:30:42,943 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/data/76de56ee1/521f23db8f0f450e8cc8b863055bb97b [2019-12-07 11:30:42,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:30:42,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:30:42,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:30:42,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:30:42,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:30:42,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:30:42" (1/1) ... [2019-12-07 11:30:42,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca5349b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:42, skipping insertion in model container [2019-12-07 11:30:42,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:30:42" (1/1) ... [2019-12-07 11:30:42,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:30:42,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:30:43,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:30:43,081 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:30:43,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:30:43,152 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:30:43,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43 WrapperNode [2019-12-07 11:30:43,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:30:43,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:30:43,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:30:43,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:30:43,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:30:43,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:30:43,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:30:43,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:30:43,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... [2019-12-07 11:30:43,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:30:43,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:30:43,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:30:43,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:30:43,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:30:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 11:30:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:30:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 11:30:43,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:30:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:30:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:30:43,494 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:30:43,495 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 11:30:43,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:43 BoogieIcfgContainer [2019-12-07 11:30:43,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:30:43,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:30:43,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:30:43,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:30:43,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:30:42" (1/3) ... [2019-12-07 11:30:43,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c6036e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:30:43, skipping insertion in model container [2019-12-07 11:30:43,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:30:43" (2/3) ... [2019-12-07 11:30:43,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c6036e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:30:43, skipping insertion in model container [2019-12-07 11:30:43,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:43" (3/3) ... [2019-12-07 11:30:43,501 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2019-12-07 11:30:43,507 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:30:43,512 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:30:43,519 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:30:43,534 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:30:43,534 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:30:43,534 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:30:43,534 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:30:43,534 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:30:43,534 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:30:43,534 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:30:43,534 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:30:43,543 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-07 11:30:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 11:30:43,547 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:43,547 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:43,548 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:43,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:43,551 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2019-12-07 11:30:43,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:43,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276815003] [2019-12-07 11:30:43,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:43,617 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 11:30:43,620 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:43,631 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:43,634 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276815003] [2019-12-07 11:30:43,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:43,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 11:30:43,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054598149] [2019-12-07 11:30:43,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 11:30:43,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:43,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 11:30:43,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:30:43,649 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-07 11:30:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:43,663 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2019-12-07 11:30:43,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 11:30:43,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 11:30:43,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:43,671 INFO L225 Difference]: With dead ends: 62 [2019-12-07 11:30:43,671 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 11:30:43,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 11:30:43,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 11:30:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 11:30:43,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 11:30:43,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-12-07 11:30:43,701 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2019-12-07 11:30:43,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:43,701 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-12-07 11:30:43,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 11:30:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2019-12-07 11:30:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 11:30:43,702 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:43,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:43,903 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 11:30:43,903 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:43,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:43,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2019-12-07 11:30:43,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:43,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091373772] [2019-12-07 11:30:43,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:44,020 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:30:44,021 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:44,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,037 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,051 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091373772] [2019-12-07 11:30:44,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:44,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:30:44,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622591286] [2019-12-07 11:30:44,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:30:44,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:44,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:30:44,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:30:44,053 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2019-12-07 11:30:44,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:44,119 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2019-12-07 11:30:44,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:30:44,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 11:30:44,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:44,121 INFO L225 Difference]: With dead ends: 68 [2019-12-07 11:30:44,121 INFO L226 Difference]: Without dead ends: 59 [2019-12-07 11:30:44,122 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:30:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-12-07 11:30:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2019-12-07 11:30:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 11:30:44,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-12-07 11:30:44,129 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2019-12-07 11:30:44,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:44,129 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-12-07 11:30:44,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:30:44,130 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2019-12-07 11:30:44,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 11:30:44,130 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:44,130 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:44,331 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 11:30:44,332 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:44,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2019-12-07 11:30:44,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:44,336 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839633340] [2019-12-07 11:30:44,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:44,448 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 11:30:44,450 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,485 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:44,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:30:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839633340] [2019-12-07 11:30:44,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:44,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:30:44,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326713874] [2019-12-07 11:30:44,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:30:44,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:44,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:30:44,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:30:44,537 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2019-12-07 11:30:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:44,604 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2019-12-07 11:30:44,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 11:30:44,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-12-07 11:30:44,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:44,605 INFO L225 Difference]: With dead ends: 52 [2019-12-07 11:30:44,606 INFO L226 Difference]: Without dead ends: 28 [2019-12-07 11:30:44,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 11:30:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-07 11:30:44,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-07 11:30:44,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-07 11:30:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-12-07 11:30:44,609 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2019-12-07 11:30:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:44,609 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-12-07 11:30:44,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:30:44,610 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-12-07 11:30:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 11:30:44,610 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:44,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:44,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 11:30:44,812 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:44,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2019-12-07 11:30:44,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:44,815 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31861631] [2019-12-07 11:30:44,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/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 [2019-12-07 11:30:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:44,942 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2019-12-07 11:30:44,943 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:44,964 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31861631] [2019-12-07 11:30:44,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:44,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 11:30:44,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695212113] [2019-12-07 11:30:44,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 11:30:44,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:44,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 11:30:44,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 11:30:44,965 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2019-12-07 11:30:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:45,018 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2019-12-07 11:30:45,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 11:30:45,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-12-07 11:30:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:45,019 INFO L225 Difference]: With dead ends: 65 [2019-12-07 11:30:45,020 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 11:30:45,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:30:45,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 11:30:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2019-12-07 11:30:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 11:30:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-12-07 11:30:45,024 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2019-12-07 11:30:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:45,025 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-12-07 11:30:45,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 11:30:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-12-07 11:30:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:30:45,025 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:45,025 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:45,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 11:30:45,226 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:45,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:45,227 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2019-12-07 11:30:45,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:45,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128039889] [2019-12-07 11:30:45,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/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 [2019-12-07 11:30:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:45,328 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 11:30:45,329 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:45,343 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:45,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:45,371 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128039889] [2019-12-07 11:30:45,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:45,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 11:30:45,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289562818] [2019-12-07 11:30:45,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 11:30:45,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:45,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 11:30:45,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:30:45,373 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2019-12-07 11:30:45,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:45,384 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2019-12-07 11:30:45,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:30:45,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-12-07 11:30:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:45,385 INFO L225 Difference]: With dead ends: 40 [2019-12-07 11:30:45,385 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 11:30:45,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 11:30:45,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 11:30:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 11:30:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 11:30:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2019-12-07 11:30:45,389 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2019-12-07 11:30:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:45,390 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2019-12-07 11:30:45,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 11:30:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2019-12-07 11:30:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 11:30:45,391 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:45,391 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:45,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 11:30:45,593 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:45,594 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2019-12-07 11:30:45,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:45,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722238814] [2019-12-07 11:30:45,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:45,733 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 11:30:45,734 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:45,765 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:45,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:30:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:45,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722238814] [2019-12-07 11:30:45,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:45,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2019-12-07 11:30:45,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456326650] [2019-12-07 11:30:45,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 11:30:45,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:45,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 11:30:45,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 11:30:45,803 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2019-12-07 11:30:45,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:45,881 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2019-12-07 11:30:45,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 11:30:45,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2019-12-07 11:30:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:45,882 INFO L225 Difference]: With dead ends: 42 [2019-12-07 11:30:45,882 INFO L226 Difference]: Without dead ends: 39 [2019-12-07 11:30:45,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-12-07 11:30:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-12-07 11:30:45,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2019-12-07 11:30:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-07 11:30:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-12-07 11:30:45,886 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2019-12-07 11:30:45,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:45,886 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-12-07 11:30:45,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 11:30:45,886 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-12-07 11:30:45,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 11:30:45,887 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:45,887 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:46,087 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 11:30:46,089 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:46,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:46,090 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2019-12-07 11:30:46,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:46,092 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506815499] [2019-12-07 11:30:46,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:46,212 INFO L264 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 11:30:46,214 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:46,241 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:46,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:46,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506815499] [2019-12-07 11:30:46,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:46,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 11:30:46,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850725263] [2019-12-07 11:30:46,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 11:30:46,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:46,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 11:30:46,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 11:30:46,294 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2019-12-07 11:30:46,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:46,369 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2019-12-07 11:30:46,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:30:46,370 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2019-12-07 11:30:46,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:46,370 INFO L225 Difference]: With dead ends: 45 [2019-12-07 11:30:46,371 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 11:30:46,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 11:30:46,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 11:30:46,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 11:30:46,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 11:30:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-12-07 11:30:46,375 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2019-12-07 11:30:46,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:46,375 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-12-07 11:30:46,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 11:30:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-12-07 11:30:46,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 11:30:46,376 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:30:46,376 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 11:30:46,577 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 11:30:46,578 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:30:46,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:30:46,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2019-12-07 11:30:46,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 11:30:46,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656072962] [2019-12-07 11:30:46,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 11:30:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:30:46,708 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 11:30:46,710 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:30:46,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:30:46,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:46,788 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:30:46,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:30:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 11:30:46,963 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656072962] [2019-12-07 11:30:46,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:30:46,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2019-12-07 11:30:46,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757201956] [2019-12-07 11:30:46,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-12-07 11:30:46,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 11:30:46,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-12-07 11:30:46,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-12-07 11:30:46,965 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2019-12-07 11:30:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:30:47,174 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-12-07 11:30:47,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 11:30:47,175 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2019-12-07 11:30:47,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:30:47,175 INFO L225 Difference]: With dead ends: 27 [2019-12-07 11:30:47,176 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:30:47,176 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2019-12-07 11:30:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:30:47,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:30:47,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:30:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:30:47,177 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-07 11:30:47,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:30:47,177 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:30:47,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-12-07 11:30:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:30:47,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:30:47,378 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 11:30:47,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 11:30:47,589 INFO L246 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2019-12-07 11:30:47,589 INFO L246 CegarLoopResult]: For program point L52(lines 52 53) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L242 CegarLoopResult]: At program point L69(lines 60 70) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)))) (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11| (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point L36(lines 36 47) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point L36-1(lines 36 47) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2019-12-07 11:30:47,590 INFO L242 CegarLoopResult]: At program point L63-2(lines 63 67) the Hoare annotation is: (and (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start_main_~res~0 (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) |ULTIMATE.start_main_#t~short11| (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 11:30:47,590 INFO L246 CegarLoopResult]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L242 CegarLoopResult]: At program point L47(lines 23 48) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmax_double_~x .cse0) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2019-12-07 11:30:47,591 INFO L242 CegarLoopResult]: At program point L47-1(lines 23 48) the Hoare annotation is: (and (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L249 CegarLoopResult]: At program point L89(lines 72 90) the Hoare annotation is: true [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 85) no Hoare annotation was computed. [2019-12-07 11:30:47,591 INFO L246 CegarLoopResult]: For program point L57-2(line 57) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L242 CegarLoopResult]: At program point L57-3(lines 50 58) the Hoare annotation is: (and (exists ((v_skolemized_v_prenex_4_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_4_3) ((_ extract 62 52) v_skolemized_v_prenex_4_3) ((_ extract 51 0) v_skolemized_v_prenex_4_3))) (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_4_3)))) (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= |ULTIMATE.start_fmax_double_#res| (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L242 CegarLoopResult]: At program point L26-2(lines 26 31) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmax_double_~x .cse0) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L26-3(lines 23 48) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L26-5(lines 26 31) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L242 CegarLoopResult]: At program point L26-6(lines 26 31) the Hoare annotation is: (and (= ULTIMATE.start_fmax_double_~x (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmax_double_~y (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x (_ +zero 11 53))) [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L26-7(lines 23 48) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L84-2(lines 84 87) no Hoare annotation was computed. [2019-12-07 11:30:47,592 INFO L246 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2019-12-07 11:30:47,593 INFO L246 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2019-12-07 11:30:47,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,605 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,615 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,621 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,622 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:30:47 BoogieIcfgContainer [2019-12-07 11:30:47,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:30:47,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:30:47,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:30:47,625 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:30:47,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:30:43" (3/4) ... [2019-12-07 11:30:47,627 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:30:47,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2019-12-07 11:30:47,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 11:30:47,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 11:30:47,653 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result)) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2019-12-07 11:30:47,653 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2019-12-07 11:30:47,653 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2019-12-07 11:30:47,654 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 0bv32 && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2019-12-07 11:30:47,654 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() [2019-12-07 11:30:47,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53ab054c-1f47-40b4-8706-57619df9cd97/bin/uautomizer/witness.graphml [2019-12-07 11:30:47,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:30:47,675 INFO L168 Benchmark]: Toolchain (without parser) took 4728.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 201.9 MB). Free memory was 953.7 MB in the beginning and 1.2 GB in the end (delta: -229.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:47,675 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:47,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:47,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:47,675 INFO L168 Benchmark]: Boogie Preprocessor took 23.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:30:47,676 INFO L168 Benchmark]: RCFGBuilder took 290.98 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:47,676 INFO L168 Benchmark]: TraceAbstraction took 4127.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.1 MB). Peak memory consumption was 302.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:47,676 INFO L168 Benchmark]: Witness Printer took 48.95 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2019-12-07 11:30:47,677 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.22 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 290.98 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4127.94 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.1 MB). Peak memory consumption was 302.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.95 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 85]: 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: 23]: Loop Invariant [2019-12-07 11:30:47,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2019-12-07 11:30:47,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result)) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 60]: Loop Invariant [2019-12-07 11:30:47,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: ((((((((\result == 0bv32 && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_q#valueAsBitvector_8[63:32])) && (\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32])) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 50]: Loop Invariant [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 63]: Loop Invariant [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,686 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: (((((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && y == ~Pluszero~LONGDOUBLE()) && res == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 23]: Loop Invariant [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,687 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] [2019-12-07 11:30:47,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_4_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_4_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_4_3[63:63], v_skolemized_v_prenex_4_3[62:52], v_skolemized_v_prenex_4_3[51:0]) && msw == v_skolemized_v_prenex_4_3[63:32]) && !(0bv32 == \result)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: SAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 252 SDtfs, 332 SDslu, 546 SDs, 0 SdLazy, 173 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 205 HoareAnnotationTreeSize, 8 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 18200 SizeOfPredicates, 38 NumberOfNonLiveVariables, 435 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...