./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/freire1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 .......................................................................................................................................................................................................................... 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_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/freire1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/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 6017351e7baf6c9b5817e3723e370f1f22bcdd89 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:56:05,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:56:05,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:56:05,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:56:05,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:56:05,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:56:05,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:56:05,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:56:05,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:56:05,546 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:56:05,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:56:05,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:56:05,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:56:05,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:56:05,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:56:05,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:56:05,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:56:05,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:56:05,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:56:05,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:56:05,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:56:05,578 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:56:05,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:56:05,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:56:05,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:56:05,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:56:05,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:56:05,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:56:05,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:56:05,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:56:05,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:56:05,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:56:05,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:56:05,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:56:05,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:56:05,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:56:05,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:56:05,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:56:05,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:56:05,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:56:05,598 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:56:05,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:56:05,630 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:56:05,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:56:05,632 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:56:05,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:56:05,632 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:56:05,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:56:05,633 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:56:05,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:56:05,634 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:56:05,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:56:05,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:56:05,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:56:05,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:56:05,635 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:56:05,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:56:05,636 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:56:05,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:56:05,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:56:05,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:56:05,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:56:05,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:56:05,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:05,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:56:05,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:56:05,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:56:05,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:56:05,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:56:05,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:56:05,652 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_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-19 22:56:05,841 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:56:05,857 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:56:05,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:56:05,862 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:56:05,863 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:56:05,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-19 22:56:05,935 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/4db40da85/2c34e92b526f4f8f985d8a07631adcf7/FLAGe12ad23a9 [2019-11-19 22:56:06,359 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:56:06,359 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-19 22:56:06,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/4db40da85/2c34e92b526f4f8f985d8a07631adcf7/FLAGe12ad23a9 [2019-11-19 22:56:06,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/4db40da85/2c34e92b526f4f8f985d8a07631adcf7 [2019-11-19 22:56:06,758 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:56:06,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:56:06,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:06,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:56:06,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:56:06,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:06" (1/1) ... [2019-11-19 22:56:06,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf01e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:06, skipping insertion in model container [2019-11-19 22:56:06,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:06" (1/1) ... [2019-11-19 22:56:06,774 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:56:06,792 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:56:07,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:07,008 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:56:07,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:07,126 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:56:07,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07 WrapperNode [2019-11-19 22:56:07,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:07,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:07,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:56:07,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:56:07,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:07,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:56:07,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:56:07,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:56:07,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,171 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... [2019-11-19 22:56:07,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:56:07,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:56:07,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:56:07,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:56:07,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:56:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:56:07,452 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:56:07,452 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 22:56:07,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:07 BoogieIcfgContainer [2019-11-19 22:56:07,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:56:07,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:56:07,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:56:07,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:56:07,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:56:06" (1/3) ... [2019-11-19 22:56:07,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc0136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:07, skipping insertion in model container [2019-11-19 22:56:07,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:07" (2/3) ... [2019-11-19 22:56:07,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cc0136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:07, skipping insertion in model container [2019-11-19 22:56:07,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:07" (3/3) ... [2019-11-19 22:56:07,461 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-19 22:56:07,470 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:56:07,488 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 22:56:07,515 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 22:56:07,554 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:56:07,555 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:56:07,555 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:56:07,555 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:56:07,555 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:56:07,555 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:56:07,556 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:56:07,556 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:56:07,575 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-19 22:56:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:56:07,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:07,582 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:56:07,582 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:07,589 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-19 22:56:07,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:56:07,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732256507] [2019-11-19 22:56:07,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:56:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:56:07,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:56:07,724 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:56:07,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:56:07 BoogieIcfgContainer [2019-11-19 22:56:07,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:56:07,740 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:56:07,740 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:56:07,740 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:56:07,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:07" (3/4) ... [2019-11-19 22:56:07,744 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:56:07,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:56:07,746 INFO L168 Benchmark]: Toolchain (without parser) took 986.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:07,747 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:07,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -232.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:07,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:07,749 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:07,750 INFO L168 Benchmark]: RCFGBuilder took 254.73 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:07,751 INFO L168 Benchmark]: TraceAbstraction took 284.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:56:07,752 INFO L168 Benchmark]: Witness Printer took 4.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:56:07,756 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 183.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -232.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.48 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 254.73 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 284.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.29 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 22:56:09,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:56:09,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:56:09,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:56:09,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:56:09,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:56:09,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:56:09,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:56:09,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:56:09,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:56:09,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:56:09,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:56:09,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:56:09,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:56:09,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:56:09,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:56:09,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:56:09,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:56:09,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:56:09,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:56:09,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:56:09,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:56:09,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:56:09,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:56:09,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:56:09,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:56:09,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:56:09,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:56:09,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:56:09,749 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:56:09,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:56:09,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:56:09,751 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:56:09,752 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:56:09,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:56:09,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:56:09,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:56:09,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:56:09,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:56:09,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:56:09,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:56:09,757 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:56:09,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:56:09,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:56:09,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:56:09,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:56:09,776 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:56:09,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:56:09,776 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:56:09,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:56:09,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:56:09,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:56:09,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:56:09,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:56:09,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:56:09,778 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:56:09,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:56:09,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:56:09,779 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:56:09,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:56:09,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:56:09,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:56:09,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:56:09,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:56:09,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:09,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:56:09,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:56:09,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:56:09,782 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:56:09,783 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:56:09,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:56:09,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:56:09,784 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_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-19 22:56:10,113 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:56:10,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:56:10,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:56:10,134 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:56:10,135 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:56:10,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/../../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-19 22:56:10,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/a29076b05/855f4c587525443ea9c137e42a7acc07/FLAG4149b4963 [2019-11-19 22:56:10,685 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:56:10,686 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-19 22:56:10,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/a29076b05/855f4c587525443ea9c137e42a7acc07/FLAG4149b4963 [2019-11-19 22:56:11,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/data/a29076b05/855f4c587525443ea9c137e42a7acc07 [2019-11-19 22:56:11,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:56:11,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:56:11,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:11,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:56:11,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:56:11,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525f2105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11, skipping insertion in model container [2019-11-19 22:56:11,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,060 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:56:11,087 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:56:11,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:11,328 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:56:11,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:56:11,370 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:56:11,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11 WrapperNode [2019-11-19 22:56:11,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:56:11,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:11,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:56:11,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:56:11,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:56:11,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:56:11,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:56:11,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:56:11,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... [2019-11-19 22:56:11,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:56:11,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:56:11,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:56:11,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:56:11,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:56:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:56:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:56:16,735 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:56:16,735 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-19 22:56:16,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:16 BoogieIcfgContainer [2019-11-19 22:56:16,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:56:16,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:56:16,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:56:16,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:56:16,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:56:11" (1/3) ... [2019-11-19 22:56:16,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63827b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:16, skipping insertion in model container [2019-11-19 22:56:16,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:56:11" (2/3) ... [2019-11-19 22:56:16,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63827b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:56:16, skipping insertion in model container [2019-11-19 22:56:16,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:16" (3/3) ... [2019-11-19 22:56:16,745 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-19 22:56:16,756 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:56:16,761 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-19 22:56:16,772 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-19 22:56:16,795 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:56:16,796 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:56:16,796 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:56:16,796 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:56:16,797 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:56:16,797 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:56:16,797 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:56:16,797 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:56:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-19 22:56:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-19 22:56:16,819 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:16,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-19 22:56:16,821 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:16,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:16,828 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-19 22:56:16,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:56:16,838 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663564789] [2019-11-19 22:56:16,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-19 22:56:20,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:20,230 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-19 22:56:20,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:56:23,453 WARN L191 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 11 [2019-11-19 22:56:30,817 WARN L838 $PredicateComparison]: unable to prove that (or (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~a~0) .cse0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))))))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-19 22:56:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:56:30,827 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:56:33,763 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-19 22:56:35,823 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-19 22:56:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:56:35,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663564789] [2019-11-19 22:56:35,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:56:35,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2019-11-19 22:56:35,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606354937] [2019-11-19 22:56:35,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:56:35,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:56:35,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:56:35,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=8, Unknown=3, NotChecked=10, Total=30 [2019-11-19 22:56:35,850 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 6 states. [2019-11-19 22:56:39,612 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start_main_~x~0 (fp.div roundNearestTiesToEven c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) is different from true [2019-11-19 22:56:47,538 WARN L191 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 26 DAG size of output: 5 [2019-11-19 22:56:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:56:58,445 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2019-11-19 22:56:58,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:56:58,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-19 22:56:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:56:58,462 INFO L225 Difference]: With dead ends: 28 [2019-11-19 22:56:58,462 INFO L226 Difference]: Without dead ends: 10 [2019-11-19 22:56:58,467 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=14, Invalid=13, Unknown=5, NotChecked=24, Total=56 [2019-11-19 22:56:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-19 22:56:58,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2019-11-19 22:56:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-19 22:56:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-19 22:56:58,500 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-19 22:56:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:56:58,501 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-19 22:56:58,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:56:58,502 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-19 22:56:58,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-19 22:56:58,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:56:58,503 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:56:58,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:56:58,720 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:56:58,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:56:58,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1361024304, now seen corresponding path program 1 times [2019-11-19 22:56:58,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:56:58,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1859940645] [2019-11-19 22:56:58,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-19 22:56:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:56:59,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:56:59,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:57:01,236 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and .cse0 (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2019-11-19 22:57:03,297 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and .cse0 (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from true [2019-11-19 22:57:03,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:57:05,371 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-19 22:57:07,432 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-19 22:57:07,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:57:13,645 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-19 22:57:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:57:13,652 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:57:15,731 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-19 22:57:17,808 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-11-19 22:57:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:57:18,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1859940645] [2019-11-19 22:57:18,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:57:18,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-19 22:57:18,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198660324] [2019-11-19 22:57:18,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 22:57:18,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:57:18,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 22:57:18,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-19 22:57:18,037 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-11-19 22:57:22,321 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and .cse0 (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) (or .cse0 .cse1))) is different from false [2019-11-19 22:57:24,397 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven c_ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and .cse0 (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) (or .cse0 .cse1))) is different from true [2019-11-19 22:57:26,465 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-19 22:57:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:57:26,471 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-11-19 22:57:26,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:57:26,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-19 22:57:26,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:57:26,472 INFO L225 Difference]: With dead ends: 8 [2019-11-19 22:57:26,472 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:57:26,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-19 22:57:26,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:57:26,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:57:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:57:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:57:26,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-19 22:57:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:57:26,475 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:57:26,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 22:57:26,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:57:26,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:57:26,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:57:26,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:57:39,198 WARN L191 SmtUtils]: Spent 12.48 s on a formula simplification that was a NOOP. DAG size: 21 [2019-11-19 22:58:01,721 WARN L191 SmtUtils]: Spent 22.51 s on a formula simplification that was a NOOP. DAG size: 27 [2019-11-19 22:58:01,727 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:58:01,727 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-19 22:58:01,727 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-19 22:58:01,727 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-19 22:58:01,728 INFO L440 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-19 22:58:01,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:58:01,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:58:01,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-19 22:58:01,728 INFO L440 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= ULTIMATE.start_main_~x~0 (fp.div roundNearestTiesToEven ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0))))) [2019-11-19 22:58:01,728 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-19 22:58:01,728 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-19 22:58:01,729 INFO L440 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~r~0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) [2019-11-19 22:58:01,729 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-19 22:58:01,729 INFO L440 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-19 22:58:01,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:58:01 BoogieIcfgContainer [2019-11-19 22:58:01,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:58:01,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:58:01,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:58:01,756 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:58:01,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:56:16" (3/4) ... [2019-11-19 22:58:01,760 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:58:01,769 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-19 22:58:01,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 22:58:01,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7c5b6e81-c0da-4dc6-b9b4-77c7e58d71ef/bin/uautomizer/witness.graphml [2019-11-19 22:58:01,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:58:01,814 INFO L168 Benchmark]: Toolchain (without parser) took 110783.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -62.2 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,815 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:58:01,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.74 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,817 INFO L168 Benchmark]: Boogie Preprocessor took 39.57 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,817 INFO L168 Benchmark]: RCFGBuilder took 5231.31 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,818 INFO L168 Benchmark]: TraceAbstraction took 105017.22 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:58:01,818 INFO L168 Benchmark]: Witness Printer took 57.70 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. [2019-11-19 22:58:01,821 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.74 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -159.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.57 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5231.31 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: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 105017.22 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: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * Witness Printer took 57.70 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-19 22:58:01,832 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,836 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, r)), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2bv32), x))) && !(cond == 0bv32) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 26]: Loop Invariant [2019-11-19 22:58:01,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-19 22:58:01,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:58:01,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(cond == 0bv32) || ((0bv32 == r && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, r)), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2bv32), x)))) && x == ~fp.div~DOUBLE(~roundNearestTiesToEven, a, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2.0))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: SAFE, OverallTime: 104.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 35.0s, HoareTripleCheckerStatistics: 14 SDtfs, 6 SDslu, 13 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 80 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 35.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 2 QuantifiedInterpolants, 1632 SizeOfPredicates, 15 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...