./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 1bbff5832e71471655f4416229b3fdd1dac2e479 .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 1bbff5832e71471655f4416229b3fdd1dac2e479 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:30:28,650 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:30:28,651 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:30:28,659 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:30:28,660 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:30:28,660 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:30:28,661 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:30:28,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:30:28,664 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:30:28,664 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:30:28,665 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:30:28,665 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:30:28,666 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:30:28,667 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:30:28,667 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:30:28,668 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:30:28,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:30:28,670 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:30:28,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:30:28,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:30:28,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:30:28,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:30:28,676 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:30:28,676 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:30:28,676 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:30:28,677 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:30:28,678 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:30:28,678 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:30:28,679 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:30:28,680 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:30:28,680 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:30:28,680 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:30:28,681 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:30:28,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:30:28,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:30:28,682 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:30:28,682 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:30:28,693 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:30:28,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:30:28,693 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:30:28,694 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:30:28,694 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:30:28,694 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:30:28,694 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:30:28,695 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:30:28,695 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:30:28,696 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:30:28,696 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:30:28,697 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:30:28,697 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:30:28,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:30:28,697 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:30:28,697 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:30:28,697 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:30:28,698 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:30:28,698 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:30:28,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:30:28,698 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-11-18 12:30:28,722 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:30:28,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:30:28,735 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:30:28,736 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:30:28,737 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:30:28,737 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:28,777 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/2c9dd8265/e94869e842d54e36be2af4cf81e57997/FLAGdfb008b1d [2018-11-18 12:30:29,116 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:30:29,116 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:29,121 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/2c9dd8265/e94869e842d54e36be2af4cf81e57997/FLAGdfb008b1d [2018-11-18 12:30:29,136 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/2c9dd8265/e94869e842d54e36be2af4cf81e57997 [2018-11-18 12:30:29,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:30:29,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:30:29,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:30:29,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:30:29,145 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:30:29,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bb2e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29, skipping insertion in model container [2018-11-18 12:30:29,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:30:29,177 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:30:29,347 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:30:29,352 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:30:29,365 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:30:29,376 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:30:29,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29 WrapperNode [2018-11-18 12:30:29,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:30:29,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:30:29,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:30:29,377 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:30:29,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... [2018-11-18 12:30:29,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:30:29,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:30:29,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:30:29,398 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:30:29,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 [2018-11-18 12:30:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:30:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:30:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:30:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:30:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:30:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:30:29,590 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:30:29,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:29 BoogieIcfgContainer [2018-11-18 12:30:29,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:30:29,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:30:29,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:30:29,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:30:29,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:30:29" (1/3) ... [2018-11-18 12:30:29,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84f11c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:29, skipping insertion in model container [2018-11-18 12:30:29,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:29" (2/3) ... [2018-11-18 12:30:29,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84f11c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:29, skipping insertion in model container [2018-11-18 12:30:29,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:29" (3/3) ... [2018-11-18 12:30:29,599 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:29,606 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:30:29,612 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:30:29,622 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:30:29,647 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:30:29,647 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:30:29,647 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:30:29,647 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:30:29,648 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:30:29,648 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:30:29,648 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:30:29,648 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:30:29,648 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:30:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-18 12:30:29,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:30:29,665 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:29,665 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:30:29,667 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:29,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-11-18 12:30:29,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:30:29,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:30:29,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:30:29,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:29,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:30:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:30:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:30:29,757 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:30:29,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:30:29 BoogieIcfgContainer [2018-11-18 12:30:29,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:30:29,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:30:29,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:30:29,776 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:30:29,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:29" (3/4) ... [2018-11-18 12:30:29,779 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:30:29,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:30:29,780 INFO L168 Benchmark]: Toolchain (without parser) took 641.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 959.1 MB in the beginning and 1.2 GB in the end (delta: -192.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:30:29,782 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:30:29,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:29,784 INFO L168 Benchmark]: Boogie Preprocessor took 21.22 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:29,784 INFO L168 Benchmark]: RCFGBuilder took 193.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -219.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:29,785 INFO L168 Benchmark]: TraceAbstraction took 183.58 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:30:29,786 INFO L168 Benchmark]: Witness Printer took 3.86 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. [2018-11-18 12:30:29,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 235.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.22 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 193.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -219.7 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 183.58 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.86 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 25]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L1] int __return_main; VAL [\old(__return_main)=2, __return_main=0] [L7] double main__x = 1.0; [L8] double main__x1 = main__x / 2.5; VAL [__return_main=0, main__x=1] [L10] COND FALSE !(main__x1 != main__x) [L19] int __tmp_1; [L20] __tmp_1 = main__x == 0 [L21] int __VERIFIER_assert__cond; [L22] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L23] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] [L25] __VERIFIER_error() VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main__x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 12:30:31,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:30:31,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:30:31,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:30:31,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:30:31,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:30:31,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:30:31,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:30:31,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:30:31,496 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:30:31,497 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:30:31,497 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:30:31,498 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:30:31,499 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:30:31,500 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:30:31,500 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:30:31,501 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:30:31,503 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:30:31,504 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:30:31,506 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:30:31,507 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:30:31,508 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:30:31,510 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:30:31,510 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:30:31,510 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:30:31,511 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:30:31,512 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:30:31,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:30:31,514 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:30:31,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:30:31,515 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:30:31,515 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:30:31,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:30:31,516 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:30:31,517 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:30:31,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:30:31,517 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:30:31,530 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:30:31,531 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:30:31,531 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:30:31,532 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:30:31,532 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:30:31,532 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:30:31,533 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:30:31,533 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:30:31,533 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:30:31,533 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:30:31,533 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:30:31,534 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:30:31,535 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:30:31,535 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:30:31,535 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:30:31,535 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:30:31,535 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:30:31,535 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:30:31,536 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:30:31,536 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:30:31,536 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:30:31,536 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:30:31,536 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:30:31,537 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:30:31,537 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:30:31,537 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:30:31,537 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:30:31,537 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 -> 1bbff5832e71471655f4416229b3fdd1dac2e479 [2018-11-18 12:30:31,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:30:31,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:30:31,590 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:30:31,591 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:30:31,592 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:30:31,592 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/../../sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:31,649 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/27b77dd5d/31df179d52f0488aa7f5594a1f9aae18/FLAGb29cecd75 [2018-11-18 12:30:32,002 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:30:32,002 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/sv-benchmarks/c/floats-esbmc-regression/Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:32,006 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/27b77dd5d/31df179d52f0488aa7f5594a1f9aae18/FLAGb29cecd75 [2018-11-18 12:30:32,016 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/data/27b77dd5d/31df179d52f0488aa7f5594a1f9aae18 [2018-11-18 12:30:32,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:30:32,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:30:32,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:30:32,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:30:32,023 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:30:32,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7724444f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32, skipping insertion in model container [2018-11-18 12:30:32,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:30:32,043 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:30:32,162 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:30:32,167 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:30:32,177 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:30:32,187 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:30:32,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32 WrapperNode [2018-11-18 12:30:32,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:30:32,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:30:32,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:30:32,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:30:32,197 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... [2018-11-18 12:30:32,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:30:32,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:30:32,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:30:32,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:30:32,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 [2018-11-18 12:30:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:30:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:30:32,303 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:30:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:30:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:30:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:30:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:30:32,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:30:33,137 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:30:33,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:33 BoogieIcfgContainer [2018-11-18 12:30:33,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:30:33,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:30:33,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:30:33,142 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:30:33,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:30:32" (1/3) ... [2018-11-18 12:30:33,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd7beef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:33, skipping insertion in model container [2018-11-18 12:30:33,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:30:32" (2/3) ... [2018-11-18 12:30:33,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd7beef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:30:33, skipping insertion in model container [2018-11-18 12:30:33,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:33" (3/3) ... [2018-11-18 12:30:33,145 INFO L112 eAbstractionObserver]: Analyzing ICFG Double_div_true-unreach-call.i.p+cfa-reducer.c [2018-11-18 12:30:33,152 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:30:33,157 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:30:33,167 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:30:33,192 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:30:33,193 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:30:33,193 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:30:33,193 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:30:33,194 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:30:33,194 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:30:33,194 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:30:33,194 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:30:33,194 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:30:33,208 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-11-18 12:30:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:30:33,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:33,213 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:30:33,215 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:33,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:33,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1301230683, now seen corresponding path program 1 times [2018-11-18 12:30:33,226 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:33,226 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 [2018-11-18 12:30:33,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:33,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:34,748 WARN L180 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 12:30:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:34,756 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:30:34,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:30:34,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:30:34,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:30:34,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:30:34,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:30:34,793 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2018-11-18 12:30:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:30:37,301 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-18 12:30:37,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:30:37,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 12:30:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:30:37,536 INFO L225 Difference]: With dead ends: 22 [2018-11-18 12:30:37,537 INFO L226 Difference]: Without dead ends: 11 [2018-11-18 12:30:37,539 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:30:37,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-18 12:30:37,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 12:30:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 12:30:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-11-18 12:30:37,569 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-11-18 12:30:37,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:30:37,570 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-11-18 12:30:37,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:30:37,570 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-11-18 12:30:37,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 12:30:37,570 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:30:37,570 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:30:37,571 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:30:37,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:30:37,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1683383028, now seen corresponding path program 1 times [2018-11-18 12:30:37,571 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:30:37,572 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/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 [2018-11-18 12:30:37,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:30:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:30:37,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:30:41,066 WARN L180 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 12:30:41,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:41,069 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:30:53,973 WARN L180 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 12:30:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:30:54,002 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:30:54,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-11-18 12:30:54,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:30:54,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:30:54,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=16, Unknown=2, NotChecked=0, Total=30 [2018-11-18 12:30:54,004 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-11-18 12:31:10,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:31:10,051 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-11-18 12:31:10,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:31:10,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-11-18 12:31:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:31:10,288 INFO L225 Difference]: With dead ends: 16 [2018-11-18 12:31:10,288 INFO L226 Difference]: Without dead ends: 13 [2018-11-18 12:31:10,289 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=17, Invalid=22, Unknown=3, NotChecked=0, Total=42 [2018-11-18 12:31:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-18 12:31:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-18 12:31:10,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-18 12:31:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-18 12:31:10,293 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-11-18 12:31:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:31:10,293 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-18 12:31:10,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:31:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-18 12:31:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 12:31:10,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:31:10,294 INFO L375 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:31:10,294 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:31:10,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:31:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1473580076, now seen corresponding path program 2 times [2018-11-18 12:31:10,295 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:31:10,295 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 12:31:10,303 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 12:31:10,986 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:31:10,986 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:31:11,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:31:18,537 WARN L180 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-18 12:31:18,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:31:18,547 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:31:24,767 WARN L832 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0))) is different from false [2018-11-18 12:31:26,993 WARN L854 $PredicateComparison]: unable to prove that (or (fp.eq c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven c_main_~main__x1~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0))) is different from true [2018-11-18 12:31:29,418 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-18 12:31:31,889 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-11-18 12:31:34,572 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-18 12:31:37,206 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1) .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-11-18 12:31:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2018-11-18 12:31:37,234 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:31:37,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2018-11-18 12:31:37,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:31:37,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:31:37,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=42, Unknown=6, NotChecked=42, Total=110 [2018-11-18 12:31:37,236 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 11 states. [2018-11-18 12:31:39,918 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse2) .cse2))) (or (fp.eq .cse0 .cse1) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse2) .cse0)))) (= c_main_~main__x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2)) (or (not (fp.eq c_main_~main__x1~0 c_main_~main__x~0)) (fp.eq c_main_~main__x~0 .cse1)))) is different from true [2018-11-18 12:31:42,396 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (and (let ((.cse0 (fp.div roundNearestTiesToEven c_main_~main__x1~0 .cse1))) (or (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)))) (= (fp.div roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1) .cse1) c_main_~main__x1~0))) is different from true [2018-11-18 12:31:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:31:50,226 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-18 12:31:50,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:31:50,226 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2018-11-18 12:31:50,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:31:50,227 INFO L225 Difference]: With dead ends: 19 [2018-11-18 12:31:50,227 INFO L226 Difference]: Without dead ends: 15 [2018-11-18 12:31:50,228 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=28, Invalid=56, Unknown=8, NotChecked=90, Total=182 [2018-11-18 12:31:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-18 12:31:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-18 12:31:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 12:31:50,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-11-18 12:31:50,231 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-11-18 12:31:50,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:31:50,232 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-11-18 12:31:50,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:31:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-11-18 12:31:50,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:31:50,232 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:31:50,233 INFO L375 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:31:50,233 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:31:50,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:31:50,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1226755252, now seen corresponding path program 3 times [2018-11-18 12:31:50,234 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:31:50,234 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:31:50,237 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 12:31:51,135 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-18 12:31:51,135 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:31:51,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:31:57,727 WARN L180 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 7 [2018-11-18 12:32:00,211 WARN L832 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= c_main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from false [2018-11-18 12:32:02,554 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= c_main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) (= (fp.div roundNearestTiesToEven c_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) c_main_~main__x1~0)) is different from true [2018-11-18 12:32:15,111 WARN L832 $PredicateComparison]: unable to prove that (or (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) (= c_main_~__VERIFIER_assert__cond~0 (_ bv0 32))) (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse2 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 .cse3))) (and (fp.eq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq (fp.div roundNearestTiesToEven .cse2 .cse3) .cse2) (not (fp.eq .cse2 v_main_~main__x~0_11)))))) (= (bvadd c_main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-18 12:32:22,493 WARN L832 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from false [2018-11-18 12:32:24,898 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_prenex_1 .cse1))) (and (not (fp.eq .cse0 v_prenex_1)) (not (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0))))) is different from true [2018-11-18 12:32:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 1 not checked. [2018-11-18 12:32:24,899 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 12:33:00,464 WARN L180 SmtUtils]: Spent 14.83 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 12:33:07,840 WARN L832 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq .cse0 v_main_~main__x~0_13))))) is different from false [2018-11-18 12:33:10,288 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_main_~main__x~0_13 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_13 .cse1))) (or (not (fp.eq (fp.div roundNearestTiesToEven .cse0 .cse1) .cse0)) (fp.eq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (fp.eq .cse0 v_main_~main__x~0_13))))) is different from true [2018-11-18 12:33:39,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:33:39,868 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:33:39,876 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:34:16,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 12:34:16,267 INFO L250 tOrderPrioritization]: Conjunction of SSA is unknown [2018-11-18 12:34:17,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:34:17,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-18 12:34:17,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:34:17,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:34:17,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=17, Unknown=12, NotChecked=44, Total=90 [2018-11-18 12:34:17,664 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2018-11-18 12:34:20,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:34:20,227 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-11-18 12:34:20,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:34:20,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-18 12:34:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:34:20,709 INFO L225 Difference]: With dead ends: 15 [2018-11-18 12:34:20,710 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:34:20,710 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.4s TimeCoverageRelationStatistics Valid=17, Invalid=17, Unknown=12, NotChecked=44, Total=90 [2018-11-18 12:34:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:34:20,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:34:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:34:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:34:20,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-18 12:34:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:34:20,711 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:34:20,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:34:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:34:20,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:34:20,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:35:35,952 WARN L180 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2018-11-18 12:35:35,953 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:35:35,953 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:35:35,954 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 5 34) the Hoare annotation is: true [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 5 34) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-11-18 12:35:35,954 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-11-18 12:35:35,955 INFO L421 ceAbstractionStarter]: At program point L14(lines 6 34) the Hoare annotation is: (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)))) (let ((.cse1 (= (fp.div roundNearestTiesToEven main_~main__x~0 .cse2) main_~main__x1~0))) (or (and (exists ((v_main_~main__x~0_11 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.div roundNearestTiesToEven v_main_~main__x~0_11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))))) (and (= main_~main__x~0 .cse0) (not (fp.eq .cse0 v_main_~main__x~0_11))))) .cse1) (and .cse1 (= main_~main__x1~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse2)))))) [2018-11-18 12:35:35,955 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 5 34) no Hoare annotation was computed. [2018-11-18 12:35:35,960 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,961 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,962 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,963 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,965 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,966 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:35,967 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,967 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,967 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,967 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,967 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,968 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,968 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:35,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:35:35 BoogieIcfgContainer [2018-11-18 12:35:35,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:35:35,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:35:35,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:35:35,970 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:35:35,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:30:33" (3/4) ... [2018-11-18 12:35:35,973 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:35:35,977 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:35:35,977 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:35:35,980 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 12:35:35,980 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:35:35,996 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_main_~main__x~0_11 : C_DOUBLE :: main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~main__x~0_11)) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) || (~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1 && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) [2018-11-18 12:35:36,004 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2a7f00b4-e3f4-423a-8670-cd2db49f6aad/bin-2019/uautomizer/witness.graphml [2018-11-18 12:35:36,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:35:36,005 INFO L168 Benchmark]: Toolchain (without parser) took 303985.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -76.9 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,005 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:35:36,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 938.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,006 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,006 INFO L168 Benchmark]: RCFGBuilder took 928.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -213.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,007 INFO L168 Benchmark]: TraceAbstraction took 302830.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.2 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,007 INFO L168 Benchmark]: Witness Printer took 34.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:36,009 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.53 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 938.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 928.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -213.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 302830.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.2 MB). Peak memory consumption was 112.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2018-11-18 12:35:36,015 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,015 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,015 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,016 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,017 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__x~0_11,QUANTIFIED] [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:35:36,018 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists v_main_~main__x~0_11 : C_DOUBLE :: main__x == ~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) && !~fp.eq~DOUBLE(~fp.div~DOUBLE(~roundNearestTiesToEven, v_main_~main__x~0_11, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)), v_main_~main__x~0_11)) && ~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1) || (~fp.div~DOUBLE(~roundNearestTiesToEven, main__x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2)) == main__x1 && main__x1 == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5/2))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 14 locations, 1 error locations. SAFE Result, 302.7s OverallTime, 4 OverallIterations, 5 TraceHistogramMax, 35.0s AutomataDifference, 0.0s DeadEndRemovalTime, 75.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 85 SDs, 0 SdLazy, 34 SolverSat, 5 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 48 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 113.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 52 HoareAnnotationTreeSize, 5 FomulaSimplifications, 231 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 54 FormulaSimplificationTreeSizeReductionInter, 75.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 38.4s SatisfiabilityAnalysisTime, 152.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 61 ConstructedInterpolants, 3 QuantifiedInterpolants, 5048 SizeOfPredicates, 15 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 14/29 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...