./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 8c97aae237a76dbf85532dc8d030e712982e570a .................................................................................................................................................................................................................................................. 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_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 8c97aae237a76dbf85532dc8d030e712982e570a ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 08:25:21,586 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:25:21,587 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:25:21,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:25:21,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:25:21,594 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:25:21,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:25:21,596 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:25:21,596 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:25:21,597 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:25:21,597 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:25:21,598 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:25:21,598 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:25:21,599 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:25:21,599 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:25:21,600 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:25:21,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:25:21,601 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:25:21,602 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:25:21,603 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:25:21,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:25:21,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:25:21,605 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:25:21,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:25:21,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:25:21,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:25:21,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:25:21,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:25:21,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:25:21,608 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:25:21,608 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:25:21,609 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:25:21,609 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:25:21,609 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:25:21,610 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:25:21,610 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:25:21,610 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 08:25:21,617 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:25:21,618 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:25:21,618 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:25:21,618 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:25:21,619 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 08:25:21,619 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:25:21,619 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 08:25:21,620 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:25:21,620 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:25:21,621 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:25:21,621 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 08:25:21,622 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:25:21,622 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 08:25:21,622 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_016d3b33-7575-4475-890e-31a62fccf53d/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-02 08:25:21,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:25:21,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:25:21,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:25:21,649 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:25:21,649 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:25:21,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:21,682 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/2a7462686/962896f893e64063a608d73cc7969167/FLAG62f5cfc13 [2018-12-02 08:25:22,122 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:25:22,122 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:22,126 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/2a7462686/962896f893e64063a608d73cc7969167/FLAG62f5cfc13 [2018-12-02 08:25:22,134 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/2a7462686/962896f893e64063a608d73cc7969167 [2018-12-02 08:25:22,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:25:22,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:25:22,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:25:22,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:25:22,139 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:25:22,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54724d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22, skipping insertion in model container [2018-12-02 08:25:22,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:25:22,153 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:25:22,236 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:25:22,238 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:25:22,246 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:25:22,254 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:25:22,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22 WrapperNode [2018-12-02 08:25:22,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:25:22,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:25:22,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:25:22,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:25:22,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:25:22,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:25:22,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:25:22,267 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:25:22,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... [2018-12-02 08:25:22,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:25:22,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:25:22,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:25:22,278 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:25:22,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 [2018-12-02 08:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:25:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:25:22,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:25:22,339 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:25:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:25:22,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 08:25:22,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 08:25:22,413 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:25:22,413 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 08:25:22,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:22 BoogieIcfgContainer [2018-12-02 08:25:22,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:25:22,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:25:22,414 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:25:22,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:25:22,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:25:22" (1/3) ... [2018-12-02 08:25:22,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f391c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:25:22, skipping insertion in model container [2018-12-02 08:25:22,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:22" (2/3) ... [2018-12-02 08:25:22,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f391c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:25:22, skipping insertion in model container [2018-12-02 08:25:22,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:22" (3/3) ... [2018-12-02 08:25:22,418 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:22,424 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:25:22,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:25:22,437 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:25:22,455 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 08:25:22,456 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:25:22,456 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:25:22,456 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:25:22,456 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:25:22,456 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:25:22,456 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:25:22,456 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:25:22,456 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:25:22,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 08:25:22,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 08:25:22,470 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:25:22,471 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:25:22,472 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:25:22,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:25:22,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-12-02 08:25:22,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 08:25:22,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 08:25:22,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:25:22,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:25:22,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:25:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:25:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:25:22,542 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 08:25:22,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:25:22 BoogieIcfgContainer [2018-12-02 08:25:22,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:25:22,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:25:22,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:25:22,557 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:25:22,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:22" (3/4) ... [2018-12-02 08:25:22,559 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 08:25:22,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:25:22,560 INFO L168 Benchmark]: Toolchain (without parser) took 424.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:25:22,561 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:25:22,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:25:22,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.85 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:25:22,562 INFO L168 Benchmark]: Boogie Preprocessor took 10.66 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:25:22,562 INFO L168 Benchmark]: RCFGBuilder took 135.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 08:25:22,563 INFO L168 Benchmark]: TraceAbstraction took 142.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:25:22,563 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:25:22,565 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.85 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.66 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -148.8 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 142.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 105.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.23-635dfa2 [2018-12-02 08:25:23,876 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:25:23,877 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:25:23,883 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:25:23,883 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:25:23,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:25:23,884 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:25:23,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:25:23,886 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:25:23,887 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:25:23,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:25:23,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:25:23,888 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:25:23,888 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:25:23,889 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:25:23,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:25:23,890 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:25:23,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:25:23,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:25:23,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:25:23,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:25:23,893 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:25:23,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:25:23,895 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:25:23,895 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:25:23,895 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:25:23,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:25:23,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:25:23,897 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:25:23,897 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:25:23,897 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:25:23,898 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:25:23,898 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:25:23,898 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:25:23,899 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:25:23,899 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:25:23,899 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 08:25:23,906 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:25:23,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:25:23,907 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:25:23,907 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:25:23,908 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 08:25:23,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:25:23,908 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 08:25:23,909 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:25:23,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:25:23,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:25:23,910 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 08:25:23,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:25:23,911 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 08:25:23,911 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 08:25:23,911 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_016d3b33-7575-4475-890e-31a62fccf53d/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 -> 8c97aae237a76dbf85532dc8d030e712982e570a [2018-12-02 08:25:23,929 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:25:23,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:25:23,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:25:23,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:25:23,943 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:25:23,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:23,991 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/7391f00ec/e0b78c70535449bdb0d204d8decd719e/FLAG40dde0fe1 [2018-12-02 08:25:24,375 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:25:24,375 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/sv-benchmarks/c/float-benchs/zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:24,379 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/7391f00ec/e0b78c70535449bdb0d204d8decd719e/FLAG40dde0fe1 [2018-12-02 08:25:24,386 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/data/7391f00ec/e0b78c70535449bdb0d204d8decd719e [2018-12-02 08:25:24,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:25:24,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:25:24,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:25:24,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:25:24,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:25:24,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f1d106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24, skipping insertion in model container [2018-12-02 08:25:24,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:25:24,413 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:25:24,503 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:25:24,507 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:25:24,516 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:25:24,525 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:25:24,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24 WrapperNode [2018-12-02 08:25:24,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:25:24,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:25:24,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:25:24,526 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:25:24,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:25:24,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:25:24,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:25:24,540 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:25:24,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... [2018-12-02 08:25:24,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:25:24,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:25:24,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:25:24,554 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:25:24,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 [2018-12-02 08:25:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:25:24,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:25:24,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:25:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:25:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:25:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:25:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-02 08:25:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-02 08:25:27,678 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:25:27,678 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-02 08:25:27,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:27 BoogieIcfgContainer [2018-12-02 08:25:27,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:25:27,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:25:27,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:25:27,681 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:25:27,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:25:24" (1/3) ... [2018-12-02 08:25:27,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcddfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:25:27, skipping insertion in model container [2018-12-02 08:25:27,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:25:24" (2/3) ... [2018-12-02 08:25:27,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcddfda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:25:27, skipping insertion in model container [2018-12-02 08:25:27,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:27" (3/3) ... [2018-12-02 08:25:27,683 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_loose_true-unreach-call_true-termination.c [2018-12-02 08:25:27,689 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:25:27,692 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:25:27,701 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:25:27,718 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 08:25:27,718 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:25:27,718 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:25:27,718 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:25:27,719 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:25:27,719 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:25:27,719 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:25:27,719 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:25:27,719 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:25:27,728 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-02 08:25:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 08:25:27,731 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:25:27,732 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:25:27,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:25:27,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:25:27,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-12-02 08:25:27,739 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:25:27,739 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 [2018-12-02 08:25:27,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:25:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:25:28,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:25:31,649 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from true [2018-12-02 08:25:48,550 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) .cse1) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) .cse1))) is different from false [2018-12-02 08:25:59,666 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse1) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse1) (_ +zero 11 53))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))))) is different from false [2018-12-02 08:26:10,788 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from false [2018-12-02 08:26:12,973 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq v_prenex_3 .cse0) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_3 .cse0) (_ +zero 11 53)))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1) (not (fp.leq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from true [2018-12-02 08:26:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:26:12,976 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:26:12,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:26:12,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:26:12,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:26:12,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:26:12,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=6, Unknown=5, NotChecked=20, Total=42 [2018-12-02 08:26:13,000 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-12-02 08:26:26,299 WARN L180 SmtUtils]: Spent 8.63 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 08:26:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:26:28,636 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-12-02 08:26:28,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:26:28,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-12-02 08:26:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:26:28,830 INFO L225 Difference]: With dead ends: 33 [2018-12-02 08:26:28,830 INFO L226 Difference]: Without dead ends: 11 [2018-12-02 08:26:28,833 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.3s TimeCoverageRelationStatistics Valid=14, Invalid=8, Unknown=6, NotChecked=28, Total=56 [2018-12-02 08:26:28,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-02 08:26:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-02 08:26:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-02 08:26:28,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-12-02 08:26:28,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-12-02 08:26:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:26:28,858 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-12-02 08:26:28,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:26:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-12-02 08:26:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 08:26:28,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:26:28,859 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:26:28,860 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:26:28,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:26:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-12-02 08:26:28,860 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:26:28,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/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 [2018-12-02 08:26:28,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:26:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:26:29,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:26:43,901 WARN L180 SmtUtils]: Spent 12.53 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-02 08:26:45,949 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-12-02 08:26:47,992 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from true [2018-12-02 08:27:04,454 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse2 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse0 (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse0 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and .cse2 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (and (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) .cse2))) is different from false [2018-12-02 08:27:18,879 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (let ((.cse3 (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.geq .cse3 (_ +zero 11 53)) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))))) is different from false [2018-12-02 08:27:29,170 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2018-12-02 08:27:31,217 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (and (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 v_prenex_7) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.leq v_prenex_7 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from true [2018-12-02 08:27:31,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:27:31,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:27:31,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:27:31,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 08:27:31,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:27:31,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:27:31,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-12-02 08:27:31,233 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-12-02 08:27:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:27:33,314 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-12-02 08:27:33,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 08:27:33,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-12-02 08:27:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:27:33,361 INFO L225 Difference]: With dead ends: 11 [2018-12-02 08:27:33,361 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 08:27:33,362 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-12-02 08:27:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 08:27:33,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 08:27:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 08:27:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 08:27:33,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-02 08:27:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:27:33,363 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 08:27:33,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:27:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 08:27:33,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 08:27:33,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 08:27:58,942 WARN L180 SmtUtils]: Spent 25.54 s on a formula simplification that was a NOOP. DAG size: 26 [2018-12-02 08:28:00,199 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 106 DAG size of output: 1 [2018-12-02 08:28:00,200 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-02 08:28:00,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:28:00,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:28:00,201 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 08:28:00,201 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 08:28:00,201 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:28:00,201 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (or (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse1) main_~y~0) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53))))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)))) [2018-12-02 08:28:00,202 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-12-02 08:28:00,202 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-12-02 08:28:00,203 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-12-02 08:28:00,203 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-12-02 08:28:00,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:28:00 BoogieIcfgContainer [2018-12-02 08:28:00,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:28:00,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:28:00,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:28:00,205 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:28:00,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:25:27" (3/4) ... [2018-12-02 08:28:00,208 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 08:28:00,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 08:28:00,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 08:28:00,214 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-02 08:28:00,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 08:28:00,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 08:28:00,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 08:28:00,241 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_016d3b33-7575-4475-890e-31a62fccf53d/bin-2019/uautomizer/witness.graphml [2018-12-02 08:28:00,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:28:00,241 INFO L168 Benchmark]: Toolchain (without parser) took 155852.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -94.1 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-02 08:28:00,242 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:28:00,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:28:00,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:28:00,243 INFO L168 Benchmark]: Boogie Preprocessor took 14.37 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:28:00,243 INFO L168 Benchmark]: RCFGBuilder took 3124.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:28:00,243 INFO L168 Benchmark]: TraceAbstraction took 152525.58 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:28:00,244 INFO L168 Benchmark]: Witness Printer took 35.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:28:00,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.43 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.37 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3124.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 152525.58 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: 65.6 MB). Peak memory consumption was 65.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 152.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 17.9s AutomataDifference, 0.0s DeadEndRemovalTime, 26.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 3 SDslu, 58 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 66 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 26.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 106.8s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 5112 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...