./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8 --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 bbabbac29d53fb5c08c994976f0cc24cf1493748 .................................................................................................................................................................................................................................................................................................................. 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8 --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 bbabbac29d53fb5c08c994976f0cc24cf1493748 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:18:56,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:18:56,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:18:56,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:18:56,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:18:56,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:18:56,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:18:56,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:18:56,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:18:56,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:18:56,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:18:56,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:18:56,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:18:56,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:18:56,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:18:56,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:18:56,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:18:56,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:18:56,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:18:56,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:18:56,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:18:56,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:18:56,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:18:56,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:18:56,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:18:56,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:18:56,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:18:56,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:18:56,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:18:56,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:18:56,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:18:56,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:18:56,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:18:56,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:18:56,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:18:56,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:18:56,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:18:56,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:18:56,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:18:56,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:18:56,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:18:56,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:18:56,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:18:56,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:18:56,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:18:56,777 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:18:56,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:18:56,778 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:18:56,778 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:18:56,778 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:18:56,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:18:56,778 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:18:56,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:18:56,780 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:18:56,780 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:18:56,780 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:18:56,780 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:18:56,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:18:56,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:18:56,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:18:56,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:18:56,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:18:56,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:18:56,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:18:56,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:18:56,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:18:56,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:18:56,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:18:56,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:18:56,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:18:56,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:18:56,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:18:56,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:18:56,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:18:56,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:18:56,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:18:56,788 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbabbac29d53fb5c08c994976f0cc24cf1493748 [2021-10-13 07:18:57,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:18:57,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:18:57,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:18:57,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:18:57,062 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:18:57,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:18:57,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/adf2a42ff/6954479bb9694e1fa4649fa20080c0f3/FLAGf99ea83f2 [2021-10-13 07:18:57,577 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:18:57,578 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:18:57,593 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/adf2a42ff/6954479bb9694e1fa4649fa20080c0f3/FLAGf99ea83f2 [2021-10-13 07:18:57,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/adf2a42ff/6954479bb9694e1fa4649fa20080c0f3 [2021-10-13 07:18:57,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:18:57,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:18:57,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:18:57,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:18:57,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:18:57,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:18:57" (1/1) ... [2021-10-13 07:18:57,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3343aed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:57, skipping insertion in model container [2021-10-13 07:18:57,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:18:57" (1/1) ... [2021-10-13 07:18:58,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:18:58,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:18:58,190 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-10-13 07:18:58,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:18:58,203 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:18:58,218 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-10-13 07:18:58,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:18:58,233 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:18:58,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58 WrapperNode [2021-10-13 07:18:58,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:18:58,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:18:58,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:18:58,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:18:58,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:18:58,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:18:58,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:18:58,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:18:58,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:18:58,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:18:58,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:18:58,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:18:58,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (1/1) ... [2021-10-13 07:18:58,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:18:58,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:18:58,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:18:58,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:18:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:18:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:18:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:18:58,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:18:58,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:18:58,581 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 07:18:58,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:18:58 BoogieIcfgContainer [2021-10-13 07:18:58,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:18:58,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:18:58,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:18:58,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:18:58,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:18:57" (1/3) ... [2021-10-13 07:18:58,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bed0b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:18:58, skipping insertion in model container [2021-10-13 07:18:58,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:18:58" (2/3) ... [2021-10-13 07:18:58,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bed0b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:18:58, skipping insertion in model container [2021-10-13 07:18:58,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:18:58" (3/3) ... [2021-10-13 07:18:58,592 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:18:58,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:18:58,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:18:58,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:18:58,692 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, mConcurrency=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 [2021-10-13 07:18:58,692 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:18:58,704 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 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) [2021-10-13 07:18:58,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:18:58,709 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:58,709 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:18:58,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:58,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1602314196, now seen corresponding path program 1 times [2021-10-13 07:18:58,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:18:58,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609575458] [2021-10-13 07:18:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:58,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:18:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:18:58,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:18:58,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:18:58,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609575458] [2021-10-13 07:18:58,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609575458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:18:58,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:18:58,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:18:58,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586846275] [2021-10-13 07:18:58,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:18:58,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:18:58,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:18:58,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:18:58,944 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 12 states have internal predecessors, (18), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-10-13 07:18:59,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:59,054 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-10-13 07:18:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:18:59,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) Word has length 9 [2021-10-13 07:18:59,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:59,065 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:18:59,065 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:18:59,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:18:59,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:18:59,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 07:18:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-13 07:18:59,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-13 07:18:59,112 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-13 07:18:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:59,112 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-13 07:18:59,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2021-10-13 07:18:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-13 07:18:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:18:59,113 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:59,113 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:18:59,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:18:59,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:59,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1619324857, now seen corresponding path program 1 times [2021-10-13 07:18:59,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:18:59,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150125774] [2021-10-13 07:18:59,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:59,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:18:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:18:59,134 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:18:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:18:59,169 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:18:59,169 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:18:59,171 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:18:59,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:18:59,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:18:59,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:18:59 BoogieIcfgContainer [2021-10-13 07:18:59,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:18:59,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:18:59,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:18:59,204 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:18:59,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:18:58" (3/4) ... [2021-10-13 07:18:59,207 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:18:59,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:18:59,209 INFO L168 Benchmark]: Toolchain (without parser) took 1237.09 ms. Allocated memory is still 130.0 MB. Free memory was 97.3 MB in the beginning and 100.2 MB in the end (delta: -2.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:59,210 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:59,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.19 ms. Allocated memory is still 130.0 MB. Free memory was 97.1 MB in the beginning and 104.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:59,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 130.0 MB. Free memory was 104.9 MB in the beginning and 103.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:59,212 INFO L168 Benchmark]: Boogie Preprocessor took 19.38 ms. Allocated memory is still 130.0 MB. Free memory was 103.6 MB in the beginning and 102.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:59,213 INFO L168 Benchmark]: RCFGBuilder took 296.27 ms. Allocated memory is still 130.0 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:59,213 INFO L168 Benchmark]: TraceAbstraction took 617.88 ms. Allocated memory is still 130.0 MB. Free memory was 91.8 MB in the beginning and 100.5 MB in the end (delta: -8.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:59,222 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 130.0 MB. Free memory was 100.5 MB in the beginning and 100.2 MB in the end (delta: 313.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:59,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 92.3 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.19 ms. Allocated memory is still 130.0 MB. Free memory was 97.1 MB in the beginning and 104.9 MB in the end (delta: -7.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.78 ms. Allocated memory is still 130.0 MB. Free memory was 104.9 MB in the beginning and 103.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.38 ms. Allocated memory is still 130.0 MB. Free memory was 103.6 MB in the beginning and 102.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 296.27 ms. Allocated memory is still 130.0 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 617.88 ms. Allocated memory is still 130.0 MB. Free memory was 91.8 MB in the beginning and 100.5 MB in the end (delta: -8.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.95 ms. Allocated memory is still 130.0 MB. Free memory was 100.5 MB in the beginning and 100.2 MB in the end (delta: 313.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 45]: 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 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 26. Possible FailurePath: [L1] int __return_main; [L12] int __return_76; [L15] double main__x; [L16] double main__y; [L17] main__x = __VERIFIER_nondet_double() [L18] int main____CPAchecker_TMP_0; VAL [__return_76=0, __return_main=0] [L19] COND TRUE main__x >= 0.0 VAL [__return_76=0, __return_main=0] [L21] COND TRUE main__x <= 10.0 [L23] main____CPAchecker_TMP_0 = 1 VAL [__return_76=0, __return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__y = (main__x * main__x) - main__x [L27] COND FALSE !(main__y >= 0) [L69] main__y = (main__x * main__x) + 2.0 [L31] int main____CPAchecker_TMP_1; VAL [__return_76=0, __return_main=0] [L32] COND FALSE !(main__y >= 0.0) VAL [__return_76=0, __return_main=0] [L58] main____CPAchecker_TMP_1 = 0 VAL [__return_76=0, __return_main=0] [L39] int __tmp_1; [L40] __tmp_1 = main____CPAchecker_TMP_1 [L41] int __VERIFIER_assert__cond; [L42] __VERIFIER_assert__cond = __tmp_1 VAL [__return_76=0, __return_main=0] [L43] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_76=0, __return_main=0] [L45] reach_error() VAL [__return_76=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 508.3ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.2ms, AutomataDifference: 144.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14 SDtfs, 20 SDslu, 27 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.4ms SsaConstructionTime, 41.0ms SatisfiabilityAnalysisTime, 88.2ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-10-13 07:18:59,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:19:01,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:19:01,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:19:01,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:19:01,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:19:01,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:19:01,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:19:01,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:19:01,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:19:01,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:19:01,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:19:01,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:19:01,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:19:01,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:19:01,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:19:01,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:19:01,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:19:01,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:19:01,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:19:01,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:19:01,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:19:01,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:19:01,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:19:01,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:19:01,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:19:01,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:19:01,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:19:01,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:19:01,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:19:01,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:19:01,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:19:01,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:19:01,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:19:01,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:19:01,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:19:01,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:19:01,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:19:01,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:19:01,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:19:01,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:19:01,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:19:01,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:19:01,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:19:01,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:19:01,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:19:01,898 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:19:01,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:19:01,898 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:19:01,899 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:19:01,899 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:19:01,899 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:19:01,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:19:01,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:19:01,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:19:01,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:19:01,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:19:01,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:19:01,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:19:01,901 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:19:01,902 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:19:01,902 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:19:01,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:19:01,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:19:01,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:19:01,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:19:01,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:19:01,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:19:01,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:19:01,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:01,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:19:01,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:19:01,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:19:01,905 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:19:01,905 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:19:01,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:19:01,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:19:01,906 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:19:01,906 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbabbac29d53fb5c08c994976f0cc24cf1493748 [2021-10-13 07:19:02,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:19:02,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:19:02,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:19:02,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:19:02,303 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:19:02,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:19:02,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/5d9ff0af9/00d44f1add36420fb371e2b18212a7ab/FLAG5d9d90f24 [2021-10-13 07:19:02,822 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:19:02,823 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:19:02,829 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/5d9ff0af9/00d44f1add36420fb371e2b18212a7ab/FLAG5d9d90f24 [2021-10-13 07:19:03,230 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/data/5d9ff0af9/00d44f1add36420fb371e2b18212a7ab [2021-10-13 07:19:03,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:19:03,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:19:03,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:03,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:19:03,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:19:03,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d93645a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03, skipping insertion in model container [2021-10-13 07:19:03,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:19:03,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:19:03,484 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-10-13 07:19:03,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:03,518 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:19:03,573 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_886144a9-2a31-4bd2-bb34-1840d9b7e984/sv-benchmarks/c/float-benchs/zonotope_loose.c.v+cfa-reducer.c[1094,1107] [2021-10-13 07:19:03,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:03,604 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:19:03,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03 WrapperNode [2021-10-13 07:19:03,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:03,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:03,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:19:03,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:19:03,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:03,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:19:03,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:19:03,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:19:03,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:19:03,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:19:03,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:19:03,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:19:03,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (1/1) ... [2021-10-13 07:19:03,681 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:03,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:03,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:19:03,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:19:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:19:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:19:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:19:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:19:06,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:19:06,934 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 07:19:06,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:06 BoogieIcfgContainer [2021-10-13 07:19:06,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:19:06,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:19:06,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:19:06,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:19:06,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:19:03" (1/3) ... [2021-10-13 07:19:06,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e8934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:06, skipping insertion in model container [2021-10-13 07:19:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:03" (2/3) ... [2021-10-13 07:19:06,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e8934a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:06, skipping insertion in model container [2021-10-13 07:19:06,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:06" (3/3) ... [2021-10-13 07:19:06,945 INFO L111 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2021-10-13 07:19:06,951 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:19:06,951 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:19:07,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:19:07,007 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, mConcurrency=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 [2021-10-13 07:19:07,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:19:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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) [2021-10-13 07:19:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:19:07,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:07,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:07,033 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:19:07,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:07,039 INFO L82 PathProgramCache]: Analyzing trace with hash 570602568, now seen corresponding path program 1 times [2021-10-13 07:19:07,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:07,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933007582] [2021-10-13 07:19:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:07,052 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:07,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:07,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:07,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:19:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:07,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:19:07,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:07,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:07,934 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:07,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933007582] [2021-10-13 07:19:07,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933007582] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:07,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:07,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:19:07,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016501176] [2021-10-13 07:19:07,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:19:07,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:19:07,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:07,958 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-13 07:19:08,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:08,060 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2021-10-13 07:19:08,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:19:08,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) Word has length 12 [2021-10-13 07:19:08,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:08,072 INFO L225 Difference]: With dead ends: 30 [2021-10-13 07:19:08,072 INFO L226 Difference]: Without dead ends: 14 [2021-10-13 07:19:08,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 120.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:19:08,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-13 07:19:08,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-13 07:19:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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) [2021-10-13 07:19:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-10-13 07:19:08,105 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-10-13 07:19:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:08,106 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-10-13 07:19:08,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-10-13 07:19:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-10-13 07:19:08,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:19:08,107 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:08,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:08,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:08,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:08,326 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:19:08,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:08,327 INFO L82 PathProgramCache]: Analyzing trace with hash 587613229, now seen corresponding path program 1 times [2021-10-13 07:19:08,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:08,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972994546] [2021-10-13 07:19:08,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:08,329 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:08,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:08,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:08,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:19:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:08,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:19:08,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:15,220 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (and (= c_ULTIMATE.start_main_~main__y~0 (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)))) is different from true [2021-10-13 07:19:32,459 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))) is different from false [2021-10-13 07:19:34,487 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (not (fp.geq (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))))) is different from true [2021-10-13 07:20:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:03,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:09,648 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) is different from true [2021-10-13 07:20:27,747 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53))))) is different from false [2021-10-13 07:20:29,784 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53))))) is different from true [2021-10-13 07:20:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:37,995 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:37,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972994546] [2021-10-13 07:20:37,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972994546] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:20:37,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:20:37,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-13 07:20:37,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703564951] [2021-10-13 07:20:37,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 07:20:37,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:20:37,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 07:20:38,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=14, Unknown=6, NotChecked=36, Total=72 [2021-10-13 07:20:38,000 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-13 07:20:40,047 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)))))) is different from false [2021-10-13 07:20:42,086 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)) (_ +zero 11 53)) (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)))))) is different from true [2021-10-13 07:20:58,208 WARN L207 SmtUtils]: Spent 10.07 s on a formula simplification that was a NOOP. DAG size: 12 [2021-10-13 07:21:15,798 WARN L207 SmtUtils]: Spent 6.94 s on a formula simplification that was a NOOP. DAG size: 14 [2021-10-13 07:21:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:20,525 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-13 07:21:20,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:21:20,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 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 12 [2021-10-13 07:21:20,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:20,527 INFO L225 Difference]: With dead ends: 21 [2021-10-13 07:21:20,528 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 07:21:20,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 45133.2ms TimeCoverageRelationStatistics Valid=25, Invalid=27, Unknown=10, NotChecked=70, Total=132 [2021-10-13 07:21:20,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 07:21:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 07:21:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 15 states have internal predecessors, (17), 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) [2021-10-13 07:21:20,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-13 07:21:20,533 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2021-10-13 07:21:20,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:20,534 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-13 07:21:20,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-13 07:21:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-13 07:21:20,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:21:20,535 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:20,535 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:20,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:20,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:20,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:21:20,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:20,737 INFO L82 PathProgramCache]: Analyzing trace with hash -125142316, now seen corresponding path program 1 times [2021-10-13 07:21:20,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:20,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14618584] [2021-10-13 07:21:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:20,738 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:20,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:20,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:20,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:21:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:21,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:21:21,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:29,562 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) c_ULTIMATE.start_main_~main__y~0) (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)))) is different from true [2021-10-13 07:21:51,184 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (not (fp.geq (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from false [2021-10-13 07:21:53,261 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (not (fp.geq (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from true [2021-10-13 07:22:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:22:37,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:22:44,109 WARN L860 $PredicateComparison]: unable to prove that (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))) is different from true [2021-10-13 07:23:03,266 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53))) (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from false [2021-10-13 07:23:05,392 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (or (not (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53))) (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53))))) is different from true [2021-10-13 07:23:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:16,037 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:16,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14618584] [2021-10-13 07:23:16,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14618584] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:16,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:16,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2021-10-13 07:23:16,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746042546] [2021-10-13 07:23:16,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:23:16,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:16,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:23:16,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=9, Unknown=6, NotChecked=28, Total=56 [2021-10-13 07:23:16,040 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-13 07:23:18,171 WARN L860 $PredicateComparison]: unable to prove that (and (fp.geq c_ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (forall ((currentRoundingMode RoundingMode)) (fp.geq (fp.div currentRoundingMode c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (_ +zero 11 53)))) is different from true [2021-10-13 07:23:30,544 WARN L207 SmtUtils]: Spent 9.12 s on a formula simplification that was a NOOP. DAG size: 13 [2021-10-13 07:23:34,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:34,185 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-10-13 07:23:34,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:23:34,186 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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 12 [2021-10-13 07:23:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:34,187 INFO L225 Difference]: With dead ends: 21 [2021-10-13 07:23:34,187 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 07:23:34,188 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27728.6ms TimeCoverageRelationStatistics Valid=18, Invalid=14, Unknown=8, NotChecked=50, Total=90 [2021-10-13 07:23:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 07:23:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2021-10-13 07:23:34,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2021-10-13 07:23:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-13 07:23:34,192 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2021-10-13 07:23:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:34,193 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-13 07:23:34,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-13 07:23:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-13 07:23:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:23:34,194 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:34,194 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:34,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:34,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:34,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:34,400 INFO L82 PathProgramCache]: Analyzing trace with hash 519293970, now seen corresponding path program 1 times [2021-10-13 07:23:34,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:34,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677740307] [2021-10-13 07:23:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:34,401 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:34,403 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:34,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:23:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:34,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:23:34,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:24:01,506 WARN L207 SmtUtils]: Spent 9.47 s on a formula simplification that was a NOOP. DAG size: 14 [2021-10-13 07:24:18,579 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~main__y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:25:12,974 WARN L207 SmtUtils]: Spent 12.88 s on a formula simplification that was a NOOP. DAG size: 23 [2021-10-13 07:25:32,968 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq .cse1 (_ +zero 11 53)))))) is different from false [2021-10-13 07:25:35,008 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (let ((.cse1 (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))) (fp.geq .cse1 (_ +zero 11 53)))))) is different from true [2021-10-13 07:26:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:03,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:26,053 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-10-13 07:26:28,098 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-10-13 07:26:40,647 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) is different from true [2021-10-13 07:26:58,006 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from false [2021-10-13 07:27:00,059 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (fp.leq c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))))) is different from true [2021-10-13 07:27:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:27:11,115 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:27:11,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677740307] [2021-10-13 07:27:11,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677740307] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:27:11,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:27:11,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2021-10-13 07:27:11,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151470556] [2021-10-13 07:27:11,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 07:27:11,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:27:11,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 07:27:11,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=42, Unknown=17, NotChecked=90, Total=182 [2021-10-13 07:27:11,124 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2021-10-13 07:27:52,159 WARN L207 SmtUtils]: Spent 27.45 s on a formula simplification. DAG size of input: 25 DAG size of output: 7 [2021-10-13 07:27:55,282 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (fp.geq c_ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:27:57,334 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))))) (fp.geq c_ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-13 07:27:59,391 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 c_ULTIMATE.start_main_~main__x~0))) (and (let ((.cse0 (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))) (or (not (fp.geq .cse0 (_ +zero 11 53))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (fp.geq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (fp.geq c_ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (= (fp.sub c_currentRoundingMode .cse1 c_ULTIMATE.start_main_~main__x~0) c_ULTIMATE.start_main_~main__y~0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-13 07:28:02,668 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (fp.geq c_ULTIMATE.start_main_~main__y~0 (_ +zero 11 53))) (fp.leq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))) (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~main__y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:28:04,730 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq c_ULTIMATE.start_main_~main__y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul c_currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (and (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)) (not (fp.geq (fp.sub c_currentRoundingMode .cse0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (= c_ULTIMATE.start_main_~main__y~0 (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode 2.0)))))) (fp.leq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:28:04,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:04,765 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-10-13 07:28:04,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:28:04,765 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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 13 [2021-10-13 07:28:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:04,766 INFO L225 Difference]: With dead ends: 22 [2021-10-13 07:28:04,766 INFO L226 Difference]: Without dead ends: 14 [2021-10-13 07:28:04,767 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 117306.1ms TimeCoverageRelationStatistics Valid=45, Invalid=54, Unknown=27, NotChecked=216, Total=342 [2021-10-13 07:28:04,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-13 07:28:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-13 07:28:04,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2021-10-13 07:28:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-10-13 07:28:04,770 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2021-10-13 07:28:04,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:04,771 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-10-13 07:28:04,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2021-10-13 07:28:04,771 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-10-13 07:28:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:28:04,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:28:04,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:28:04,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 07:28:04,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:28:04,982 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:28:04,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:28:04,982 INFO L82 PathProgramCache]: Analyzing trace with hash -101291445, now seen corresponding path program 1 times [2021-10-13 07:28:04,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:28:04,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530151849] [2021-10-13 07:28:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:28:04,983 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:28:04,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:28:04,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:28:04,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:28:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:28:05,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:28:05,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:28:30,881 WARN L207 SmtUtils]: Spent 10.96 s on a formula simplification that was a NOOP. DAG size: 13 [2021-10-13 07:29:08,374 WARN L207 SmtUtils]: Spent 15.39 s on a formula simplification that was a NOOP. DAG size: 15 [2021-10-13 07:29:26,399 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse1 (fp.div roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 .cse0))) (and (fp.leq ULTIMATE.start_main_~main__x~0 .cse0) (fp.geq .cse1 (_ +zero 11 53)) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from false [2021-10-13 07:29:28,493 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (let ((.cse1 (fp.div roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 .cse0))) (and (fp.leq ULTIMATE.start_main_~main__x~0 .cse0) (fp.geq .cse1 (_ +zero 11 53)) (not (fp.leq .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 105.0))))))) is different from true [2021-10-13 07:30:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:30:14,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:30:34,886 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))))) is different from false [2021-10-13 07:30:37,017 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) c_currentRoundingMode 10.0)))) (or (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse0 (_ +zero 11 53))))) is different from true [2021-10-13 07:30:59,547 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse1 (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0))) (or (not (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))))) is different from false [2021-10-13 07:31:01,685 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse1 (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0))) (or (not (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))))) is different from true [2021-10-13 07:31:29,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:31:29,332 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:31:29,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530151849] [2021-10-13 07:31:29,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530151849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:31:29,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:31:29,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-10-13 07:31:29,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948545530] [2021-10-13 07:31:29,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 07:31:29,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:31:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 07:31:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=29, Unknown=15, NotChecked=42, Total=110 [2021-10-13 07:31:29,335 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-13 07:31:33,575 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse1 (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0))) (or (not (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:31:35,710 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (let ((.cse1 (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0))) (or (not (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-13 07:31:37,849 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq c_ULTIMATE.start_main_~main__x~0 .cse0) (let ((.cse1 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 .cse0))) (or (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-10-13 07:31:39,985 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (fp.leq c_ULTIMATE.start_main_~main__x~0 .cse0) (let ((.cse1 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~main__x~0 .cse0))) (or (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (not (fp.geq .cse1 (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-13 07:31:42,125 WARN L838 $PredicateComparison]: unable to prove that (and (or (not (fp.geq c_ULTIMATE.start_main_~main__y~0 (_ +zero 11 53))) (fp.leq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0))) (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0) c_ULTIMATE.start_main_~main__y~0) (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:31:44,274 WARN L838 $PredicateComparison]: unable to prove that (and (fp.geq c_ULTIMATE.start_main_~main__y~0 (_ +zero 11 53)) (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= (fp.div c_currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse0) c_ULTIMATE.start_main_~main__y~0) (fp.leq ULTIMATE.start_main_~main__x~0 .cse0)))) (fp.leq c_ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) c_currentRoundingMode 105.0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-13 07:31:44,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:31:44,284 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-10-13 07:31:44,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:31:44,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 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 13 [2021-10-13 07:31:44,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:31:44,285 INFO L225 Difference]: With dead ends: 14 [2021-10-13 07:31:44,285 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:31:44,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 74385.1ms TimeCoverageRelationStatistics Valid=32, Invalid=31, Unknown=21, NotChecked=126, Total=210 [2021-10-13 07:31:44,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:31:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:31:44,286 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) [2021-10-13 07:31:44,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:31:44,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-13 07:31:44,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:31:44,287 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:31:44,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 10 states have internal predecessors, (26), 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) [2021-10-13 07:31:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:31:44,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:31:44,290 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:31:44,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:31:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:31:44,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:31:44,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:31:44,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:31:44,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:31:44,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:33:33,253 WARN L207 SmtUtils]: Spent 1.81 m on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-10-13 07:33:33,255 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:33:33,255 INFO L853 garLoopResultBuilder]: At program point L64(lines 32 65) the Hoare annotation is: false [2021-10-13 07:33:33,257 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 71) no Hoare annotation was computed. [2021-10-13 07:33:33,257 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 81) no Hoare annotation was computed. [2021-10-13 07:33:33,259 INFO L860 garLoopResultBuilder]: At program point L85(lines 13 87) the Hoare annotation is: true [2021-10-13 07:33:33,259 INFO L857 garLoopResultBuilder]: For program point L19(lines 19 86) no Hoare annotation was computed. [2021-10-13 07:33:33,259 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 60) no Hoare annotation was computed. [2021-10-13 07:33:33,259 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 65) no Hoare annotation was computed. [2021-10-13 07:33:33,260 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:33:33,260 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:33:33,260 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:33:33,260 INFO L853 garLoopResultBuilder]: At program point L59(lines 34 60) the Hoare annotation is: (= (_ bv1 32) ULTIMATE.start_main_~main____CPAchecker_TMP_1~0) [2021-10-13 07:33:33,260 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 76) no Hoare annotation was computed. [2021-10-13 07:33:33,261 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2021-10-13 07:33:33,261 INFO L857 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2021-10-13 07:33:33,261 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 52) no Hoare annotation was computed. [2021-10-13 07:33:33,262 INFO L853 garLoopResultBuilder]: At program point L70(lines 27 71) the Hoare annotation is: (let ((.cse0 (fp.leq ULTIMATE.start_main_~main__y~0 ((_ to_fp 11 53) currentRoundingMode 105.0))) (.cse2 (= currentRoundingMode roundNearestTiesToEven))) (or (and .cse0 (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul currentRoundingMode ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0))) (and (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)) (fp.leq ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) (not (fp.geq (fp.sub currentRoundingMode .cse1 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= ULTIMATE.start_main_~main__y~0 (fp.add currentRoundingMode .cse1 ((_ to_fp 11 53) currentRoundingMode 2.0)))))) .cse2) (and (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) currentRoundingMode 10.0))) (and (= (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 .cse3) ULTIMATE.start_main_~main__y~0) (fp.leq ULTIMATE.start_main_~main__x~0 .cse3)))) .cse0 (or (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53))) (and (= ULTIMATE.start_main_~main__y~0 (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__x~0) ((_ to_fp 11 53) roundNearestTiesToEven 2.0))) (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53)))) (exists ((ULTIMATE.start_main_~main__x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode ULTIMATE.start_main_~main__x~0 ((_ to_fp 11 53) currentRoundingMode 10.0)) ULTIMATE.start_main_~main__y~0) (fp.geq ULTIMATE.start_main_~main__x~0 (_ +zero 11 53))))) .cse2))) [2021-10-13 07:33:33,267 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:33:33,279 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,280 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,282 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,283 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,283 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,283 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,284 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,284 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,284 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,285 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,286 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,286 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,301 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,304 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,305 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,307 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,312 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,312 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,314 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,315 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,316 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,320 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,321 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,321 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:33:33 BoogieIcfgContainer [2021-10-13 07:33:33,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:33:33,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:33:33,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:33:33,324 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:33:33,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:06" (3/4) ... [2021-10-13 07:33:33,330 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:33:33,347 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 07:33:33,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 07:33:33,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:33:33,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:33:33,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0)) && (\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: ((~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE()) && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && !~fp.geq~DOUBLE(~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32))) && main__y == ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((((\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) == main__y && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) && ((\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: main__y == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE())) || (\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(currentRoundingMode, 10.0)) == main__y && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2021-10-13 07:33:33,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:33:33,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:33:33,389 INFO L168 Benchmark]: Toolchain (without parser) took 870147.19 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 27.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:33,390 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:33:33,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 360.67 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.8 MB in the beginning and 49.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:33,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.84 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 48.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:33:33,392 INFO L168 Benchmark]: Boogie Preprocessor took 27.51 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 47.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:33:33,392 INFO L168 Benchmark]: RCFGBuilder took 3263.72 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 37.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:33,393 INFO L168 Benchmark]: TraceAbstraction took 866385.25 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 30.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:33,394 INFO L168 Benchmark]: Witness Printer took 64.43 ms. Allocated memory is still 67.1 MB. Free memory was 30.2 MB in the beginning and 27.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:33:33,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 360.67 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.8 MB in the beginning and 49.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.84 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 48.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.51 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 47.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3263.72 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 37.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 866385.25 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 30.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.43 ms. Allocated memory is still 67.1 MB. Free memory was 30.2 MB in the beginning and 27.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866267.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 18.1ms, AutomataDifference: 129411.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 108763.5ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 19 SDslu, 104 SDs, 0 SdLazy, 41 SolverSat, 2 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 17613.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 26 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 264673.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 9 NumberOfFragments, 102 HoareAnnotationTreeSize, 4 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 98.6ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 108658.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 67.6ms SsaConstructionTime, 2234.9ms SatisfiabilityAnalysisTime, 624354.6ms InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 34 QuantifiedInterpolants, 1126 SizeOfPredicates, 19 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 34]: Loop Invariant Derived loop invariant: 1bv32 == main____CPAchecker_TMP_1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant [2021-10-13 07:33:33,414 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,414 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,414 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,414 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,415 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,416 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,417 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,418 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,422 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,423 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:33:33,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:33:33,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__x~0,QUANTIFIED] [2021-10-13 07:33:33,425 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0)) && (\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: ((~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE()) && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && !~fp.geq~DOUBLE(~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32))) && main__y == ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((((\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0)) == main__y && ~fp.leq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 10.0))) && ~fp.leq~DOUBLE(main__y, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 105.0))) && ((\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE :: main__y == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_main_~main__x~0, ULTIMATE.start_main_~main__x~0), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 2.0)) && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE())) || (\exists ULTIMATE.start_main_~main__x~0 : C_DOUBLE, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ULTIMATE.start_main_~main__x~0, ~to_fp~LONGDOUBLE(currentRoundingMode, 10.0)) == main__y && ~fp.geq~DOUBLE(ULTIMATE.start_main_~main__x~0, ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:33:33,641 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 07:33:33,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_886144a9-2a31-4bd2-bb34-1840d9b7e984/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...