./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 ................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 ........................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:40:26,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:40:26,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:40:26,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:40:26,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:40:26,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:40:26,260 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:40:26,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:40:26,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:40:26,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:40:26,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:40:26,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:40:26,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:40:26,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:40:26,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:40:26,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:40:26,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:40:26,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:40:26,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:40:26,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:40:26,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:40:26,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:40:26,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:40:26,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:40:26,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:40:26,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:40:26,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:40:26,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:40:26,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:40:26,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:40:26,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:40:26,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:40:26,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:40:26,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:40:26,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:40:26,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:40:26,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:40:26,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:40:26,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:40:26,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:40:26,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:40:26,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:40:26,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:40:26,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:40:26,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:40:26,355 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:40:26,356 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:40:26,356 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:40:26,356 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:40:26,357 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:40:26,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:40:26,357 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:40:26,358 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:40:26,358 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:40:26,358 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:40:26,358 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:40:26,359 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:40:26,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:40:26,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:40:26,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:40:26,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:40:26,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:40:26,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:40:26,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:40:26,362 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:40:26,362 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:40:26,362 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:40:26,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:40:26,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:40:26,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:40:26,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:40:26,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:40:26,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:40:26,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:40:26,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:40:26,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:40:26,365 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:40:26,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:40:26,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:40:26,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:40:26,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:40:26,367 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2021-10-29 04:40:26,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:40:26,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:40:26,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:40:26,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:40:26,812 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:40:26,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-10-29 04:40:26,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/ecd346862/2414556f6fef47b69f5bfb0fb48eef50/FLAG9c95d1aea [2021-10-29 04:40:27,456 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:40:27,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-10-29 04:40:27,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/ecd346862/2414556f6fef47b69f5bfb0fb48eef50/FLAG9c95d1aea [2021-10-29 04:40:27,824 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/ecd346862/2414556f6fef47b69f5bfb0fb48eef50 [2021-10-29 04:40:27,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:40:27,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:40:27,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:40:27,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:40:27,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:40:27,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:40:27" (1/1) ... [2021-10-29 04:40:27,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432b8a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:27, skipping insertion in model container [2021-10-29 04:40:27,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:40:27" (1/1) ... [2021-10-29 04:40:27,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:40:27,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:40:28,123 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-10-29 04:40:28,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:40:28,158 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:40:28,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-10-29 04:40:28,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:40:28,202 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:40:28,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28 WrapperNode [2021-10-29 04:40:28,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:40:28,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:40:28,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:40:28,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:40:28,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:40:28,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:40:28,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:40:28,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:40:28,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:40:28,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:40:28,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:40:28,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:40:28,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (1/1) ... [2021-10-29 04:40:28,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:40:28,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:40:28,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:40:28,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:40:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:40:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:40:28,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:40:28,814 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:40:28,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:28 BoogieIcfgContainer [2021-10-29 04:40:28,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:40:28,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:40:28,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:40:28,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:40:28,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:40:27" (1/3) ... [2021-10-29 04:40:28,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6b1727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:40:28, skipping insertion in model container [2021-10-29 04:40:28,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:28" (2/3) ... [2021-10-29 04:40:28,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e6b1727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:40:28, skipping insertion in model container [2021-10-29 04:40:28,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:28" (3/3) ... [2021-10-29 04:40:28,829 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-10-29 04:40:28,836 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:40:28,836 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:40:28,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:40:28,944 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:40:28,944 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:40:28,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:40:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:40:28,968 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:40:28,968 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 04:40:28,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:40:28,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:40:28,977 INFO L85 PathProgramCache]: Analyzing trace with hash 67880, now seen corresponding path program 1 times [2021-10-29 04:40:28,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:40:28,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313611827] [2021-10-29 04:40:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:40:28,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:40:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:40:29,123 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:40:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:40:29,177 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:40:29,180 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:40:29,182 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:40:29,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:40:29,191 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 04:40:29,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:40:29,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:40:29 BoogieIcfgContainer [2021-10-29 04:40:29,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:40:29,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:40:29,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:40:29,217 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:40:29,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:28" (3/4) ... [2021-10-29 04:40:29,222 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:40:29,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:40:29,225 INFO L168 Benchmark]: Toolchain (without parser) took 1394.61 ms. Allocated memory is still 127.9 MB. Free memory was 88.6 MB in the beginning and 74.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,227 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 127.9 MB. Free memory was 104.7 MB in the beginning and 104.6 MB in the end (delta: 72.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:40:29,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.03 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 103.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.58 ms. Allocated memory is still 127.9 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,230 INFO L168 Benchmark]: Boogie Preprocessor took 47.81 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 100.9 MB in the end (delta: 815.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:40:29,231 INFO L168 Benchmark]: RCFGBuilder took 513.69 ms. Allocated memory is still 127.9 MB. Free memory was 100.5 MB in the beginning and 88.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,232 INFO L168 Benchmark]: TraceAbstraction took 395.83 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 75.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,233 INFO L168 Benchmark]: Witness Printer took 6.32 ms. Allocated memory is still 127.9 MB. Free memory was 75.3 MB in the beginning and 74.9 MB in the end (delta: 400.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:40:29,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 127.9 MB. Free memory was 104.7 MB in the beginning and 104.6 MB in the end (delta: 72.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.03 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 103.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.58 ms. Allocated memory is still 127.9 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.81 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 100.9 MB in the end (delta: 815.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 513.69 ms. Allocated memory is still 127.9 MB. Free memory was 100.5 MB in the beginning and 88.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 395.83 ms. Allocated memory is still 127.9 MB. Free memory was 88.4 MB in the beginning and 75.4 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.32 ms. Allocated memory is still 127.9 MB. Free memory was 75.3 MB in the beginning and 74.9 MB in the end (delta: 400.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L18] double x,y; [L20] x = __VERIFIER_nondet_double() [L12] COND FALSE !(!cond) [L23] y = x*x - x [L24] COND TRUE y >= 0 [L24] y = x / 10. [L14] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 04:40:29,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:40:32,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:40:32,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:40:32,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:40:32,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:40:32,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:40:32,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:40:32,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:40:32,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:40:32,404 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:40:32,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:40:32,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:40:32,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:40:32,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:40:32,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:40:32,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:40:32,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:40:32,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:40:32,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:40:32,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:40:32,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:40:32,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:40:32,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:40:32,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:40:32,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:40:32,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:40:32,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:40:32,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:40:32,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:40:32,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:40:32,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:40:32,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:40:32,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:40:32,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:40:32,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:40:32,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:40:32,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:40:32,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:40:32,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:40:32,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:40:32,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:40:32,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:40:32,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:40:32,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:40:32,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:40:32,551 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:40:32,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:40:32,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:40:32,552 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:40:32,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:40:32,552 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:40:32,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:40:32,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:40:32,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:40:32,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:40:32,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:40:32,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:40:32,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:40:32,557 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:40:32,558 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:40:32,558 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:40:32,558 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:40:32,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:40:32,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:40:32,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:40:32,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:40:32,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:40:32,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:40:32,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:40:32,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:40:32,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:40:32,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:40:32,562 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:40:32,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:40:32,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:40:32,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:40:32,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:40:32,564 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa618b022767b6c663b9172cb51ecdc227fadddd170513d68c08989c25287c33 [2021-10-29 04:40:33,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:40:33,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:40:33,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:40:33,122 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:40:33,123 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:40:33,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-10-29 04:40:33,213 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/f8ce02107/bbc21dbfbf8a45c2a27ebe43f19b79c7/FLAGfde6b30e9 [2021-10-29 04:40:33,923 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:40:33,924 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c [2021-10-29 04:40:33,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/f8ce02107/bbc21dbfbf8a45c2a27ebe43f19b79c7/FLAGfde6b30e9 [2021-10-29 04:40:34,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/data/f8ce02107/bbc21dbfbf8a45c2a27ebe43f19b79c7 [2021-10-29 04:40:34,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:40:34,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:40:34,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:40:34,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:40:34,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:40:34,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79452da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34, skipping insertion in model container [2021-10-29 04:40:34,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:40:34,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:40:34,499 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-10-29 04:40:34,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:40:34,530 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:40:34,546 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/sv-benchmarks/c/float-benchs/zonotope_loose.c[577,590] [2021-10-29 04:40:34,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:40:34,570 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:40:34,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34 WrapperNode [2021-10-29 04:40:34,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:40:34,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:40:34,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:40:34,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:40:34,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:40:34,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:40:34,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:40:34,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:40:34,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:40:34,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:40:34,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:40:34,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:40:34,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (1/1) ... [2021-10-29 04:40:34,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:40:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:40:34,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:40:34,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:40:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:40:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:40:34,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:40:34,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:40:40,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:40:40,871 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:40:40,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:40 BoogieIcfgContainer [2021-10-29 04:40:40,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:40:40,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:40:40,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:40:40,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:40:40,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:40:34" (1/3) ... [2021-10-29 04:40:40,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573774da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:40:40, skipping insertion in model container [2021-10-29 04:40:40,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:40:34" (2/3) ... [2021-10-29 04:40:40,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573774da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:40:40, skipping insertion in model container [2021-10-29 04:40:40,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:40" (3/3) ... [2021-10-29 04:40:40,884 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2021-10-29 04:40:40,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:40:40,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:40:40,951 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:40:40,970 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:40:40,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:40:41,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:40:41,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:40:41,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:40:41,008 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:40:41,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:40:41,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:40:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash 119383821, now seen corresponding path program 1 times [2021-10-29 04:40:41,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:40:41,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549864780] [2021-10-29 04:40:41,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:40:41,048 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:40:41,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:40:41,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:40:41,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:40:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:40:41,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:40:41,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:40:42,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:40:42,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:40:42,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:40:42,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:40:42,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549864780] [2021-10-29 04:40:42,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549864780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:40:42,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:40:42,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:40:42,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284018026] [2021-10-29 04:40:42,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:40:42,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:40:42,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:40:42,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:40:42,159 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:40:42,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:40:42,175 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-10-29 04:40:42,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:40:42,177 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 04:40:42,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:40:42,188 INFO L225 Difference]: With dead ends: 23 [2021-10-29 04:40:42,188 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 04:40:42,191 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:40:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 04:40:42,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 04:40:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:40:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-10-29 04:40:42,229 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 8 [2021-10-29 04:40:42,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:40:42,230 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-10-29 04:40:42,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:40:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-10-29 04:40:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:40:42,231 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:40:42,232 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:40:42,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:40:42,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:40:42,457 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:40:42,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:40:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash 176642123, now seen corresponding path program 1 times [2021-10-29 04:40:42,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:40:42,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976620808] [2021-10-29 04:40:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:40:42,460 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:40:42,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:40:42,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:40:42,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:40:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:40:43,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 04:40:43,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:41:09,408 WARN L207 SmtUtils]: Spent 6.52 s on a formula simplification that was a NOOP. DAG size: 15 [2021-10-29 04:42:24,025 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (let ((.cse0 (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse1)))) is different from false [2021-10-29 04:42:26,118 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (let ((.cse0 (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse1)))) is different from true [2021-10-29 04:42:43,533 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from false [2021-10-29 04:42:45,625 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.leq (fp.div roundNearestTiesToEven ULTIMATE.start_main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0)))) is different from true [2021-10-29 04:42:45,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:42:45,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:42:58,029 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from false [2021-10-29 04:43:00,165 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)))) is different from true [2021-10-29 04:43:24,457 WARN L838 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53))))) is different from false [2021-10-29 04:43:26,585 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53))))) is different from true [2021-10-29 04:44:09,001 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) is different from false [2021-10-29 04:44:11,140 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) is different from true [2021-10-29 04:44:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:44:11,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:44:11,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976620808] [2021-10-29 04:44:11,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976620808] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:44:11,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:44:11,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-10-29 04:44:11,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927426928] [2021-10-29 04:44:11,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 04:44:11,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:44:11,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 04:44:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=36, Unknown=14, NotChecked=80, Total=156 [2021-10-29 04:44:11,147 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:15,368 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 04:44:17,502 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_9 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (or (not (fp.leq v_ULTIMATE.start_main_~x~0_9 .cse0)) (fp.leq (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~x~0_9 .cse0) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_9 (_ +zero 11 53)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 04:44:19,636 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse1 (fp.leq c_ULTIMATE.start_main_~x~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and (or (not .cse0) (not .cse1)) .cse2))) (or .cse2 (let ((.cse4 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse3))) (and (fp.leq .cse4 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse4 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-29 04:44:24,185 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~x~0 .cse1))) (and (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq .cse0 (_ +zero 11 53)) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 .cse1) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2021-10-29 04:44:26,319 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.div c_currentRoundingMode ULTIMATE.start_main_~x~0 .cse0)) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 .cse0))))) is different from false [2021-10-29 04:44:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:44:34,609 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-29 04:44:34,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 04:44:34,611 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 04:44:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:44:34,611 INFO L225 Difference]: With dead ends: 13 [2021-10-29 04:44:34,612 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 04:44:34,613 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 60.4s TimeCoverageRelationStatistics Valid=37, Invalid=51, Unknown=20, NotChecked=198, Total=306 [2021-10-29 04:44:34,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 04:44:34,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 04:44:34,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-29 04:44:34,615 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-29 04:44:34,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:44:34,615 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-29 04:44:34,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:44:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-29 04:44:34,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:44:34,616 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:44:34,616 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:44:34,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:44:34,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:44:34,818 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:44:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:44:34,819 INFO L85 PathProgramCache]: Analyzing trace with hash 176701705, now seen corresponding path program 1 times [2021-10-29 04:44:34,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:44:34,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797765462] [2021-10-29 04:44:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:44:34,821 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:44:34,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:44:34,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:44:34,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:44:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:44:35,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 04:44:35,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:45:12,235 WARN L207 SmtUtils]: Spent 13.36 s on a formula simplification that was a NOOP. DAG size: 14 [2021-10-29 04:45:29,569 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 04:47:16,087 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (let ((.cse0 (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from false [2021-10-29 04:47:18,130 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (let ((.cse0 (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from true [2021-10-29 04:47:37,914 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from false [2021-10-29 04:47:39,956 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))))) is different from true [2021-10-29 04:47:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:47:39,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:47:52,899 WARN L838 $PredicateComparison]: unable to prove that (or (fp.leq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from false [2021-10-29 04:47:54,941 WARN L860 $PredicateComparison]: unable to prove that (or (fp.leq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) is different from true [2021-10-29 04:48:05,192 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from false [2021-10-29 04:48:07,250 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) is different from true [2021-10-29 04:48:20,263 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) is different from true [2021-10-29 04:48:39,059 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from false [2021-10-29 04:48:41,112 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from true [2021-10-29 04:48:41,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:48:41,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:48:41,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797765462] [2021-10-29 04:48:41,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797765462] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:48:41,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:48:41,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-10-29 04:48:41,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501935903] [2021-10-29 04:48:41,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 04:48:41,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:48:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 04:48:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=38, Unknown=15, NotChecked=126, Total=210 [2021-10-29 04:48:41,117 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:48:45,295 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 04:48:47,345 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~x~0_10 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~x~0_10 v_ULTIMATE.start_main_~x~0_10))) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq v_ULTIMATE.start_main_~x~0_10 (_ +zero 11 53))) (fp.geq (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~x~0_10) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq v_ULTIMATE.start_main_~x~0_10 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 04:48:49,415 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) .cse1)) (let ((.cse2 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse3 (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse2 .cse3) (and (or (not .cse2) (not .cse3)) .cse1))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-29 04:48:51,474 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) .cse1)) (let ((.cse2 (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53))) (.cse3 (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse2 .cse3) (and (or (not .cse2) (not .cse3)) .cse1))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-29 04:48:53,529 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 04:48:55,589 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (or (fp.geq (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 04:48:57,650 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0)) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-29 04:48:59,696 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~x~0))) (and (= c_ULTIMATE.start_main_~y~0 (fp.sub c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0)) (or (fp.leq (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)) ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.geq c_ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-29 04:49:01,750 WARN L838 $PredicateComparison]: unable to prove that (and (fp.leq c_ULTIMATE.start_main_~y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-29 04:49:03,808 WARN L838 $PredicateComparison]: unable to prove that (and (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (exists ((ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (let ((.cse0 (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 105.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse0)) (and .cse0 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))))) (fp.geq ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 ULTIMATE.start_main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.leq ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)))))) is different from false [2021-10-29 04:49:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:03,814 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-10-29 04:49:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:49:03,814 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 04:49:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:03,815 INFO L225 Difference]: With dead ends: 9 [2021-10-29 04:49:03,815 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:49:03,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=43, Invalid=40, Unknown=25, NotChecked=312, Total=420 [2021-10-29 04:49:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:49:03,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:49:03,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:03,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:49:03,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-10-29 04:49:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:03,817 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:49:03,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:49:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:49:03,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:49:03,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:49:03,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:49:04,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:49:04,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:49:04,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:49:04,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:49:04,071 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:49:04,072 INFO L857 garLoopResultBuilder]: For program point L11(lines 11 13) no Hoare annotation was computed. [2021-10-29 04:49:04,072 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 04:49:04,073 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:49:04,073 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 04:49:04,073 INFO L860 garLoopResultBuilder]: At program point L28(lines 16 29) the Hoare annotation is: true [2021-10-29 04:49:04,073 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 25) no Hoare annotation was computed. [2021-10-29 04:49:04,074 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-29 04:49:04,074 INFO L857 garLoopResultBuilder]: For program point L24-2(lines 24 25) no Hoare annotation was computed. [2021-10-29 04:49:04,074 INFO L857 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-10-29 04:49:04,075 INFO L857 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-10-29 04:49:04,075 INFO L857 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2021-10-29 04:49:04,075 INFO L860 garLoopResultBuilder]: At program point L14-3(line 14) the Hoare annotation is: true [2021-10-29 04:49:04,079 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 04:49:04,080 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:49:04,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:49:04 BoogieIcfgContainer [2021-10-29 04:49:04,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:49:04,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:49:04,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:49:04,088 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:49:04,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:40:40" (3/4) ... [2021-10-29 04:49:04,093 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:49:04,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-29 04:49:04,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 04:49:04,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:49:04,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:49:04,167 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:49:04,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:49:04,169 INFO L168 Benchmark]: Toolchain (without parser) took 509868.32 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 47.4 MB in the end (delta: -8.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:04,169 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:04,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.86 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 29.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:04,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.35 ms. Allocated memory is still 60.8 MB. Free memory was 29.0 MB in the beginning and 44.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:04,171 INFO L168 Benchmark]: Boogie Preprocessor took 60.55 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 43.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:04,172 INFO L168 Benchmark]: RCFGBuilder took 6155.34 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 33.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:04,172 INFO L168 Benchmark]: TraceAbstraction took 503211.07 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 33.2 MB in the beginning and 49.6 MB in the end (delta: -16.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:04,173 INFO L168 Benchmark]: Witness Printer took 79.75 ms. Allocated memory is still 75.5 MB. Free memory was 49.6 MB in the beginning and 47.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:04,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.86 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 29.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.35 ms. Allocated memory is still 60.8 MB. Free memory was 29.0 MB in the beginning and 44.2 MB in the end (delta: -15.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.55 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 43.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 6155.34 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 33.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 503211.07 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 33.2 MB in the beginning and 49.6 MB in the end (delta: -16.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 79.75 ms. Allocated memory is still 75.5 MB. Free memory was 49.6 MB in the beginning and 47.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 503.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 0 SDslu, 9 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 22 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 128.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 453.9s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 574 SizeOfPredicates, 14 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-29 04:49:04,420 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 04:49:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_284f70b9-d0bb-4267-91df-09b352a63e54/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...