./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/loop-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:22:56,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:22:56,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:22:56,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:22:56,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:22:56,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:22:56,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:22:56,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:22:56,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:22:56,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:22:56,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:22:56,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:22:56,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:22:56,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:22:56,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:22:56,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:22:56,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:22:56,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:22:56,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:22:56,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:22:56,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:22:56,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:22:56,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:22:56,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:22:56,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:22:56,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:22:56,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:22:56,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:22:56,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:22:56,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:22:56,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:22:56,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:22:56,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:22:56,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:22:56,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:22:56,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:22:56,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:22:56,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:22:56,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:22:56,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:22:56,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:22:56,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:22:56,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:22:56,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:22:56,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:22:56,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:22:56,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:22:56,318 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:22:56,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:22:56,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:22:56,319 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:22:56,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:22:56,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:22:56,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:22:56,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:22:56,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:22:56,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:22:56,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:22:56,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:22:56,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:22:56,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:22:56,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:22:56,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:22:56,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:22:56,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:22:56,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:22:56,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:22:56,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:22:56,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:22:56,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:22:56,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:22:56,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:22:56,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:22:56,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:22:56,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:22:56,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:22:56,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b [2021-11-20 07:22:56,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:22:56,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:22:56,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:22:56,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:22:56,668 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:22:56,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/loop-1.c [2021-11-20 07:22:56,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/6057f9737/74d2ab27aca246fc8e4bd8864c5b655d/FLAGe567968cf [2021-11-20 07:22:57,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:22:57,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c [2021-11-20 07:22:57,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/6057f9737/74d2ab27aca246fc8e4bd8864c5b655d/FLAGe567968cf [2021-11-20 07:22:57,553 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/6057f9737/74d2ab27aca246fc8e4bd8864c5b655d [2021-11-20 07:22:57,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:22:57,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:22:57,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:22:57,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:22:57,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:22:57,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dbf87a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57, skipping insertion in model container [2021-11-20 07:22:57,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:22:57,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:22:57,759 WARN L230 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_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-20 07:22:57,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:57,781 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:22:57,793 WARN L230 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_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-20 07:22:57,796 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:22:57,809 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:22:57,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57 WrapperNode [2021-11-20 07:22:57,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:22:57,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:57,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:22:57,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:22:57,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,842 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2021-11-20 07:22:57,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:22:57,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:22:57,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:22:57,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:22:57,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:22:57,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:22:57,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:22:57,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:22:57,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (1/1) ... [2021-11-20 07:22:57,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:22:57,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:22:57,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:22:57,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:22:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:22:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:22:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:22:57,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:22:58,015 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:22:58,017 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:22:58,151 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:22:58,158 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:22:58,162 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:22:58,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:58 BoogieIcfgContainer [2021-11-20 07:22:58,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:22:58,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:22:58,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:22:58,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:22:58,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:22:57" (1/3) ... [2021-11-20 07:22:58,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea3d6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:58, skipping insertion in model container [2021-11-20 07:22:58,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:22:57" (2/3) ... [2021-11-20 07:22:58,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea3d6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:22:58, skipping insertion in model container [2021-11-20 07:22:58,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:58" (3/3) ... [2021-11-20 07:22:58,189 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-1.c [2021-11-20 07:22:58,195 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:22:58,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:22:58,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:22:58,310 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-11-20 07:22:58,310 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:22:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2021-11-20 07:22:58,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:22:58,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:22:58,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:22:58,336 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:22:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:22:58,343 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-20 07:22:58,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:22:58,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159552572] [2021-11-20 07:22:58,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:22:58,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:22:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:22:58,520 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:22:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:22:58,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:22:58,587 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:22:58,590 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:22:58,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:22:58,599 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-20 07:22:58,602 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:22:58,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:22:58 BoogieIcfgContainer [2021-11-20 07:22:58,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:22:58,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:22:58,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:22:58,639 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:22:58,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:22:58" (3/4) ... [2021-11-20 07:22:58,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:22:58,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:22:58,648 INFO L158 Benchmark]: Toolchain (without parser) took 1090.11ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 50.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,650 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 60.9MB in the beginning and 60.9MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:22:58,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.86ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 75.0MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.60ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,655 INFO L158 Benchmark]: Boogie Preprocessor took 19.53ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:22:58,661 INFO L158 Benchmark]: RCFGBuilder took 302.36ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 64.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,662 INFO L158 Benchmark]: TraceAbstraction took 466.15ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 51.2MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,664 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 98.6MB. Free memory was 51.2MB in the beginning and 50.8MB in the end (delta: 374.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:22:58,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 60.9MB in the beginning and 60.9MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.86ms. Allocated memory is still 98.6MB. Free memory was 64.1MB in the beginning and 75.0MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.60ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.53ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 302.36ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 64.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 466.15ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 51.2MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 98.6MB. Free memory was 51.2MB in the beginning and 50.8MB in the end (delta: 374.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 20, overapproximation of someBinaryDOUBLEComparisonOperation at line 20. Possible FailurePath: [L8] float x, y, z; [L10] x = 1.f [L11] y = 1e7 [L12] z = 42.f VAL [x=1, y=10000000, z=42] [L14] COND FALSE !(x < y) VAL [x=1, y=10000000, z=42] [L20] CALL __VERIFIER_assert(z >= 0.f && z <= 1e8) [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 07:22:58,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:23:01,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:23:01,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:23:01,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:23:01,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:23:01,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:23:01,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:23:01,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:23:01,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:23:01,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:23:01,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:23:01,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:23:01,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:23:01,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:23:01,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:23:01,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:23:01,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:23:01,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:23:01,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:23:01,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:23:01,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:23:01,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:23:01,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:23:01,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:23:01,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:23:01,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:23:01,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:23:01,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:23:01,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:23:01,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:23:01,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:23:01,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:23:01,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:23:01,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:23:01,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:23:01,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:23:01,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:23:01,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:23:01,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:23:01,754 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:23:01,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:23:01,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:23:01,799 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:23:01,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:23:01,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:23:01,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:23:01,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:23:01,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:23:01,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:23:01,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:23:01,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:23:01,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:23:01,802 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:23:01,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:23:01,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:23:01,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:23:01,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:23:01,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:23:01,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:23:01,804 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:23:01,804 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:23:01,804 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:23:01,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:23:01,804 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:23:01,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:23:01,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:23:01,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:23:01,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:23:01,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:23:01,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:23:01,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:23:01,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:23:01,807 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:23:01,807 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:23:01,807 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:23:01,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:23:01,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:23:01,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:23:01,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:23:01,808 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_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b [2021-11-20 07:23:02,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:23:02,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:23:02,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:23:02,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:23:02,259 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:23:02,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-benchs/loop-1.c [2021-11-20 07:23:02,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/957bf355b/7c9d8ddc237648aea517d3d3f0b849bc/FLAG4569ae335 [2021-11-20 07:23:02,865 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:23:02,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c [2021-11-20 07:23:02,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/957bf355b/7c9d8ddc237648aea517d3d3f0b849bc/FLAG4569ae335 [2021-11-20 07:23:03,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/data/957bf355b/7c9d8ddc237648aea517d3d3f0b849bc [2021-11-20 07:23:03,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:23:03,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:23:03,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:23:03,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:23:03,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:23:03,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b84055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03, skipping insertion in model container [2021-11-20 07:23:03,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:23:03,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:23:03,487 WARN L230 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_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-20 07:23:03,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:23:03,515 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:23:03,528 WARN L230 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_95a985b5-0850-45b5-a628-e5a781d2f478/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-20 07:23:03,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:23:03,602 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:23:03,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03 WrapperNode [2021-11-20 07:23:03,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:23:03,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:23:03,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:23:03,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:23:03,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,642 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2021-11-20 07:23:03,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:23:03,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:23:03,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:23:03,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:23:03,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:23:03,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:23:03,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:23:03,696 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:23:03,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (1/1) ... [2021-11-20 07:23:03,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:23:03,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:23:03,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:23:03,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:23:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:23:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:23:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:23:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:23:03,879 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:23:03,881 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:23:04,623 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:23:04,629 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:23:04,629 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 07:23:04,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:04 BoogieIcfgContainer [2021-11-20 07:23:04,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:23:04,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:23:04,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:23:04,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:23:04,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:23:03" (1/3) ... [2021-11-20 07:23:04,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d59b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:04, skipping insertion in model container [2021-11-20 07:23:04,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:23:03" (2/3) ... [2021-11-20 07:23:04,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d59b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:23:04, skipping insertion in model container [2021-11-20 07:23:04,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:23:04" (3/3) ... [2021-11-20 07:23:04,639 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-1.c [2021-11-20 07:23:04,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:23:04,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:23:04,718 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:23:04,725 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-11-20 07:23:04,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:23:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2021-11-20 07:23:04,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-20 07:23:04,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:04,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:23:04,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:04,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:04,751 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-20 07:23:04,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:23:04,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368185361] [2021-11-20 07:23:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:04,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:23:04,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:23:04,767 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:23:04,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:23:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:04,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 07:23:04,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:23:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:05,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:23:05,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:05,095 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:23:05,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368185361] [2021-11-20 07:23:05,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368185361] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:23:05,097 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:23:05,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 07:23:05,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293217586] [2021-11-20 07:23:05,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:23:05,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:23:05,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:23:05,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:23:05,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:23:05,144 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:23:05,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:05,167 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-20 07:23:05,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:23:05,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-20 07:23:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:05,178 INFO L225 Difference]: With dead ends: 20 [2021-11-20 07:23:05,179 INFO L226 Difference]: Without dead ends: 8 [2021-11-20 07:23:05,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:23:05,188 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:05,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 1 Unchecked, 0.0s Time] [2021-11-20 07:23:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-20 07:23:05,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-20 07:23:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:23:05,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-20 07:23:05,222 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-20 07:23:05,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:05,223 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-20 07:23:05,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:23:05,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-20 07:23:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 07:23:05,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:05,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:05,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:23:05,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:23:05,437 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-20 07:23:05,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:23:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383455109] [2021-11-20 07:23:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:23:05,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:23:05,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:23:05,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:23:05,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:23:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:23:05,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 07:23:05,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:23:05,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:05,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:23:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:09,548 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:23:09,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383455109] [2021-11-20 07:23:09,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383455109] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:23:09,548 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:23:09,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-11-20 07:23:09,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095313141] [2021-11-20 07:23:09,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:23:09,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 07:23:09,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:23:09,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:23:09,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=25, Unknown=1, NotChecked=0, Total=42 [2021-11-20 07:23:09,552 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-11-20 07:23:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:23:16,340 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-20 07:23:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:23:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) Word has length 7 [2021-11-20 07:23:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:23:16,347 INFO L225 Difference]: With dead ends: 15 [2021-11-20 07:23:16,347 INFO L226 Difference]: Without dead ends: 11 [2021-11-20 07:23:16,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=36, Invalid=53, Unknown=1, NotChecked=0, Total=90 [2021-11-20 07:23:16,349 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:23:16,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-20 07:23:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-20 07:23:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-20 07:23:16,367 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) [2021-11-20 07:23:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-11-20 07:23:16,369 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2021-11-20 07:23:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:23:16,369 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-11-20 07:23:16,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 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) [2021-11-20 07:23:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-11-20 07:23:16,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:23:16,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:23:16,371 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2021-11-20 07:23:16,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-20 07:23:16,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:23:16,582 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:23:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:23:16,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times [2021-11-20 07:23:16,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:23:16,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397316281] [2021-11-20 07:23:16,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:23:16,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:23:16,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:23:16,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:23:16,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:23:17,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:23:17,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:23:17,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:23:17,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:23:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:23:18,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:23:41,177 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0))) is different from false [2021-11-20 07:23:43,206 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0))) is different from true [2021-11-20 07:23:49,290 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0))) is different from false [2021-11-20 07:23:51,317 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0))) is different from true [2021-11-20 07:23:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 7 not checked. [2021-11-20 07:23:51,339 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:23:51,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397316281] [2021-11-20 07:23:51,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397316281] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:23:51,340 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:23:51,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-11-20 07:23:51,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104960663] [2021-11-20 07:23:51,341 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:23:51,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:23:51,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:23:51,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:23:51,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=8, NotChecked=38, Total=156 [2021-11-20 07:23:51,343 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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) [2021-11-20 07:23:55,901 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0)) (= .cse0 |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 07:24:01,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:20,917 WARN L227 SmtUtils]: Spent 11.39s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:24:22,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:31,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:33,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:37,478 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:24:37,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:24:37,505 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2021-11-20 07:24:37,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 07:24:37,511 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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) Word has length 10 [2021-11-20 07:24:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:24:37,512 INFO L225 Difference]: With dead ends: 19 [2021-11-20 07:24:37,512 INFO L226 Difference]: Without dead ends: 15 [2021-11-20 07:24:37,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 57.0s TimeCoverageRelationStatistics Valid=84, Invalid=129, Unknown=9, NotChecked=84, Total=306 [2021-11-20 07:24:37,515 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:24:37,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 41 Invalid, 1 Unknown, 22 Unchecked, 14.6s Time] [2021-11-20 07:24:37,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-20 07:24:37,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-20 07:24:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 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) [2021-11-20 07:24:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-20 07:24:37,527 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-11-20 07:24:37,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:24:37,527 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-20 07:24:37,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 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) [2021-11-20 07:24:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-20 07:24:37,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 07:24:37,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:24:37,529 INFO L514 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1] [2021-11-20 07:24:37,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:24:37,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:24:37,733 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:24:37,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:24:37,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1620705621, now seen corresponding path program 3 times [2021-11-20 07:24:37,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:24:37,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950475012] [2021-11-20 07:24:37,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:24:37,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:24:37,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:24:37,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:24:37,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:24:38,482 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-20 07:24:38,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:24:38,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-20 07:24:38,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:24:58,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:24:58,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:25:32,193 WARN L227 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:25:51,357 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse2)) (.cse3 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2))) (let ((.cse0 (fp.add c_currentRoundingMode .cse3 .cse2)) (.cse1 (fp.sub c_currentRoundingMode .cse4 .cse2))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse2) (fp.sub c_currentRoundingMode .cse1 .cse2)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse3 .cse4)))))) is different from true [2021-11-20 07:26:09,878 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse5 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse4)) (.cse6 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse4))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse6 .cse4)) (.cse0 (fp.add c_currentRoundingMode .cse5 .cse4))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse4)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse4))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse4) (fp.sub c_currentRoundingMode .cse3 .cse4)) (not (fp.lt .cse5 .cse6))))))) is different from false [2021-11-20 07:26:11,913 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse5 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse4)) (.cse6 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse4))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse6 .cse4)) (.cse0 (fp.add c_currentRoundingMode .cse5 .cse4))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse4)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse4))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse4) (fp.sub c_currentRoundingMode .cse3 .cse4)) (not (fp.lt .cse5 .cse6))))))) is different from true [2021-11-20 07:26:30,497 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse5) .cse5)) (.cse1 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse5) .cse5))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse5)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse5))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse5)) (.cse6 (fp.sub c_currentRoundingMode .cse3 .cse5))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse5) (fp.sub c_currentRoundingMode .cse6 .cse5)) (not (fp.lt .cse4 .cse6))))))) is different from false [2021-11-20 07:26:32,541 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse5) .cse5)) (.cse1 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse5) .cse5))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse5)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse5))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse5)) (.cse6 (fp.sub c_currentRoundingMode .cse3 .cse5))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse5) (fp.sub c_currentRoundingMode .cse6 .cse5)) (not (fp.lt .cse4 .cse6))))))) is different from true [2021-11-20 07:26:51,233 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1) .cse1) .cse1)) (.cse4 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse1) .cse1) .cse1))) (let ((.cse6 (fp.sub c_currentRoundingMode .cse4 .cse1)) (.cse5 (fp.add c_currentRoundingMode .cse3 .cse1))) (let ((.cse0 (fp.add c_currentRoundingMode .cse5 .cse1)) (.cse2 (fp.sub c_currentRoundingMode .cse6 .cse1))) (or (fp.lt (fp.add c_currentRoundingMode .cse0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse0 .cse2))))))) is different from false [2021-11-20 07:26:53,283 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1) .cse1) .cse1)) (.cse4 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse1) .cse1) .cse1))) (let ((.cse6 (fp.sub c_currentRoundingMode .cse4 .cse1)) (.cse5 (fp.add c_currentRoundingMode .cse3 .cse1))) (let ((.cse0 (fp.add c_currentRoundingMode .cse5 .cse1)) (.cse2 (fp.sub c_currentRoundingMode .cse6 .cse1))) (or (fp.lt (fp.add c_currentRoundingMode .cse0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse0 .cse2))))))) is different from true [2021-11-20 07:27:12,076 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse6) .cse6) .cse6) .cse6)) (.cse1 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse6) .cse6) .cse6) .cse6))) (let ((.cse5 (fp.sub c_currentRoundingMode .cse1 .cse6)) (.cse4 (fp.add c_currentRoundingMode .cse0 .cse6))) (let ((.cse2 (fp.add c_currentRoundingMode .cse4 .cse6)) (.cse3 (fp.sub c_currentRoundingMode .cse5 .cse6))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse6) (fp.sub c_currentRoundingMode .cse3 .cse6))))))) is different from false [2021-11-20 07:27:14,134 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse6) .cse6) .cse6) .cse6)) (.cse1 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse6) .cse6) .cse6) .cse6))) (let ((.cse5 (fp.sub c_currentRoundingMode .cse1 .cse6)) (.cse4 (fp.add c_currentRoundingMode .cse0 .cse6))) (let ((.cse2 (fp.add c_currentRoundingMode .cse4 .cse6)) (.cse3 (fp.sub c_currentRoundingMode .cse5 .cse6))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse6) (fp.sub c_currentRoundingMode .cse3 .cse6))))))) is different from true [2021-11-20 07:27:33,045 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse6) .cse6) .cse6) .cse6) .cse6)) (.cse5 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse6) .cse6) .cse6) .cse6) .cse6))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse5 .cse6)) (.cse2 (fp.add c_currentRoundingMode .cse4 .cse6))) (let ((.cse0 (fp.add c_currentRoundingMode .cse2 .cse6)) (.cse1 (fp.sub c_currentRoundingMode .cse3 .cse6))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse6) (fp.sub c_currentRoundingMode .cse1 .cse6))))))) is different from false [2021-11-20 07:27:35,111 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse6) .cse6) .cse6) .cse6) .cse6)) (.cse5 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse6) .cse6) .cse6) .cse6) .cse6))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse5 .cse6)) (.cse2 (fp.add c_currentRoundingMode .cse4 .cse6))) (let ((.cse0 (fp.add c_currentRoundingMode .cse2 .cse6)) (.cse1 (fp.sub c_currentRoundingMode .cse3 .cse6))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse6) (fp.sub c_currentRoundingMode .cse1 .cse6))))))) is different from true [2021-11-20 07:27:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 33 not checked. [2021-11-20 07:27:35,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:27:35,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950475012] [2021-11-20 07:27:35,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950475012] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:27:35,144 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 07:27:35,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-11-20 07:27:35,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293814053] [2021-11-20 07:27:35,145 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 07:27:35,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-20 07:27:35,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:27:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-20 07:27:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=144, Unknown=16, NotChecked=186, Total=420 [2021-11-20 07:27:35,147 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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) [2021-11-20 07:27:38,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:41,067 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:42,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:43,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:45,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:27:48,235 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse6 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) |c_ULTIMATE.start_main_~y~0#1|) (let ((.cse4 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse6) .cse6) .cse6) .cse6) .cse6)) (.cse5 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse6) .cse6) .cse6) .cse6) .cse6))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse5 .cse6)) (.cse2 (fp.add c_currentRoundingMode .cse4 .cse6))) (let ((.cse0 (fp.add c_currentRoundingMode .cse2 .cse6)) (.cse1 (fp.sub c_currentRoundingMode .cse3 .cse6))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse6) (fp.sub c_currentRoundingMode .cse1 .cse6)))))) (= .cse6 |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 07:27:50,290 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.add c_currentRoundingMode .cse0 .cse0) |c_ULTIMATE.start_main_~x~0#1|) (= (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse0) |c_ULTIMATE.start_main_~y~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0)) (.cse2 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0))) (let ((.cse6 (fp.sub c_currentRoundingMode .cse2 .cse0)) (.cse5 (fp.add c_currentRoundingMode .cse1 .cse0))) (let ((.cse3 (fp.add c_currentRoundingMode .cse5 .cse0)) (.cse4 (fp.sub c_currentRoundingMode .cse6 .cse0))) (or (not (fp.lt .cse1 .cse2)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (fp.lt (fp.add c_currentRoundingMode .cse3 .cse0) (fp.sub c_currentRoundingMode .cse4 .cse0)))))))) is different from false [2021-11-20 07:27:52,349 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.add c_currentRoundingMode .cse0 .cse0) |c_ULTIMATE.start_main_~x~0#1|) (= (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse0) |c_ULTIMATE.start_main_~y~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0)) (.cse2 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0))) (let ((.cse6 (fp.sub c_currentRoundingMode .cse2 .cse0)) (.cse5 (fp.add c_currentRoundingMode .cse1 .cse0))) (let ((.cse3 (fp.add c_currentRoundingMode .cse5 .cse0)) (.cse4 (fp.sub c_currentRoundingMode .cse6 .cse0))) (or (not (fp.lt .cse1 .cse2)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (fp.lt (fp.add c_currentRoundingMode .cse3 .cse0) (fp.sub c_currentRoundingMode .cse4 .cse0)))))))) is different from true [2021-11-20 07:27:54,411 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (let ((.cse3 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1) .cse1) .cse1)) (.cse4 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse1) .cse1) .cse1))) (let ((.cse6 (fp.sub c_currentRoundingMode .cse4 .cse1)) (.cse5 (fp.add c_currentRoundingMode .cse3 .cse1))) (let ((.cse0 (fp.add c_currentRoundingMode .cse5 .cse1)) (.cse2 (fp.sub c_currentRoundingMode .cse6 .cse1))) (or (fp.lt (fp.add c_currentRoundingMode .cse0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse0 .cse2)))))) (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse1 .cse1) .cse1) |c_ULTIMATE.start_main_~x~0#1|) (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse1) .cse1) |c_ULTIMATE.start_main_~y~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-20 07:27:56,456 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~y~0#1|) (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0)) (.cse2 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0))) (let ((.cse4 (fp.sub c_currentRoundingMode .cse2 .cse0)) (.cse3 (fp.add c_currentRoundingMode .cse1 .cse0))) (let ((.cse5 (fp.add c_currentRoundingMode .cse3 .cse0)) (.cse6 (fp.sub c_currentRoundingMode .cse4 .cse0))) (or (not (fp.lt .cse1 .cse2)) (not (fp.lt .cse3 .cse4)) (fp.lt (fp.add c_currentRoundingMode .cse5 .cse0) (fp.sub c_currentRoundingMode .cse6 .cse0)) (not (fp.lt .cse5 .cse6)))))))) is different from false [2021-11-20 07:27:58,499 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~y~0#1|) (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse1 (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0)) (.cse2 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0))) (let ((.cse4 (fp.sub c_currentRoundingMode .cse2 .cse0)) (.cse3 (fp.add c_currentRoundingMode .cse1 .cse0))) (let ((.cse5 (fp.add c_currentRoundingMode .cse3 .cse0)) (.cse6 (fp.sub c_currentRoundingMode .cse4 .cse0))) (or (not (fp.lt .cse1 .cse2)) (not (fp.lt .cse3 .cse4)) (fp.lt (fp.add c_currentRoundingMode .cse5 .cse0) (fp.sub c_currentRoundingMode .cse6 .cse0)) (not (fp.lt .cse5 .cse6)))))))) is different from true [2021-11-20 07:28:27,221 WARN L227 SmtUtils]: Spent 9.73s on a formula simplification. DAG size of input: 37 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:28:42,393 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse4)) (.cse5 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse4)) (.cse2 (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (not .cse2)) (.cse0 (fp.lt .cse3 .cse5))) (and (or .cse0 .cse1) .cse2 (or (fp.lt (fp.add c_currentRoundingMode .cse3 .cse4) (fp.sub c_currentRoundingMode .cse5 .cse4)) .cse1 (not .cse0)) (= c_currentRoundingMode roundNearestTiesToEven))))) is different from false [2021-11-20 07:28:54,460 WARN L227 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 12 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:28:56,487 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:28:58,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:33,697 WARN L227 SmtUtils]: Spent 28.16s on a formula simplification. DAG size of input: 17 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:29:35,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:29:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:35,506 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-20 07:29:35,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 07:29:35,532 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 14 [2021-11-20 07:29:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:35,533 INFO L225 Difference]: With dead ends: 23 [2021-11-20 07:29:35,533 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 07:29:35,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 164.5s TimeCoverageRelationStatistics Valid=128, Invalid=233, Unknown=25, NotChecked=484, Total=870 [2021-11-20 07:29:35,535 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:35,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 3 Unknown, 76 Unchecked, 23.2s Time] [2021-11-20 07:29:35,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 07:29:35,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 07:29:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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) [2021-11-20 07:29:35,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-20 07:29:35,551 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2021-11-20 07:29:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:35,552 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-20 07:29:35,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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) [2021-11-20 07:29:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-20 07:29:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 07:29:35,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:35,553 INFO L514 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:35,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:29:35,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:29:35,777 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:35,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:35,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1499312107, now seen corresponding path program 4 times [2021-11-20 07:29:35,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:29:35,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761224801] [2021-11-20 07:29:35,778 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:29:35,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:29:35,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:29:35,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:29:35,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a985b5-0850-45b5-a628-e5a781d2f478/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 07:29:38,220 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:29:38,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:29:38,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-20 07:29:38,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:30:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:30:52,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:31:27,682 WARN L227 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-20 07:31:44,919 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse2)) (.cse3 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2))) (let ((.cse0 (fp.add c_currentRoundingMode .cse3 .cse2)) (.cse1 (fp.sub c_currentRoundingMode .cse4 .cse2))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse2) (fp.sub c_currentRoundingMode .cse1 .cse2)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse3 .cse4)))))) is different from false [2021-11-20 07:31:46,951 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse2)) (.cse3 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse2))) (let ((.cse0 (fp.add c_currentRoundingMode .cse3 .cse2)) (.cse1 (fp.sub c_currentRoundingMode .cse4 .cse2))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add c_currentRoundingMode .cse0 .cse2) (fp.sub c_currentRoundingMode .cse1 .cse2)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse3 .cse4)))))) is different from true [2021-11-20 07:32:09,604 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse5 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse4)) (.cse6 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse4))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse6 .cse4)) (.cse0 (fp.add c_currentRoundingMode .cse5 .cse4))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse4)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse4))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse4) (fp.sub c_currentRoundingMode .cse3 .cse4)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse5 .cse6))))))) is different from false [2021-11-20 07:32:11,645 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse5 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse4)) (.cse6 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse4))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse6 .cse4)) (.cse0 (fp.add c_currentRoundingMode .cse5 .cse4))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse4)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse4))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse4) (fp.sub c_currentRoundingMode .cse3 .cse4)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse5 .cse6))))))) is different from true [2021-11-20 07:32:38,567 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse8 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse5)) (.cse7 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse5))) (let ((.cse0 (fp.add c_currentRoundingMode .cse7 .cse5)) (.cse1 (fp.sub c_currentRoundingMode .cse8 .cse5))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse5)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse5))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse5)) (.cse6 (fp.sub c_currentRoundingMode .cse3 .cse5))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse5) (fp.sub c_currentRoundingMode .cse6 .cse5)) (not (fp.lt .cse4 .cse6)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse7 .cse8)))))))) is different from false [2021-11-20 07:32:40,623 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse8 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse5)) (.cse7 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse5))) (let ((.cse0 (fp.add c_currentRoundingMode .cse7 .cse5)) (.cse1 (fp.sub c_currentRoundingMode .cse8 .cse5))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse5)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse5))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse5)) (.cse6 (fp.sub c_currentRoundingMode .cse3 .cse5))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse5) (fp.sub c_currentRoundingMode .cse6 .cse5)) (not (fp.lt .cse4 .cse6)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse7 .cse8)))))))) is different from true [2021-11-20 07:33:11,906 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse9 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse3)) (.cse10 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse3))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse10 .cse3)) (.cse0 (fp.add c_currentRoundingMode .cse9 .cse3))) (let ((.cse5 (fp.add c_currentRoundingMode .cse0 .cse3)) (.cse6 (fp.sub c_currentRoundingMode .cse1 .cse3))) (let ((.cse8 (fp.sub c_currentRoundingMode .cse6 .cse3)) (.cse7 (fp.add c_currentRoundingMode .cse5 .cse3))) (let ((.cse2 (fp.add c_currentRoundingMode .cse7 .cse3)) (.cse4 (fp.sub c_currentRoundingMode .cse8 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse3) (fp.sub c_currentRoundingMode .cse4 .cse3)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse7 .cse8)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse2 .cse4)) (not (fp.lt .cse9 .cse10))))))))) is different from false [2021-11-20 07:33:13,969 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse9 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse3)) (.cse10 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse3))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse10 .cse3)) (.cse0 (fp.add c_currentRoundingMode .cse9 .cse3))) (let ((.cse5 (fp.add c_currentRoundingMode .cse0 .cse3)) (.cse6 (fp.sub c_currentRoundingMode .cse1 .cse3))) (let ((.cse8 (fp.sub c_currentRoundingMode .cse6 .cse3)) (.cse7 (fp.add c_currentRoundingMode .cse5 .cse3))) (let ((.cse2 (fp.add c_currentRoundingMode .cse7 .cse3)) (.cse4 (fp.sub c_currentRoundingMode .cse8 .cse3))) (or (not (fp.lt .cse0 .cse1)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse3) (fp.sub c_currentRoundingMode .cse4 .cse3)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse7 .cse8)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse2 .cse4)) (not (fp.lt .cse9 .cse10))))))))) is different from true [2021-11-20 07:33:49,515 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse12 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse11 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse12)) (.cse10 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse12))) (let ((.cse0 (fp.add c_currentRoundingMode .cse10 .cse12)) (.cse1 (fp.sub c_currentRoundingMode .cse11 .cse12))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse12)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse12))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse12)) (.cse5 (fp.sub c_currentRoundingMode .cse3 .cse12))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse5 .cse12)) (.cse8 (fp.add c_currentRoundingMode .cse4 .cse12))) (let ((.cse6 (fp.add c_currentRoundingMode .cse8 .cse12)) (.cse7 (fp.sub c_currentRoundingMode .cse9 .cse12))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse8 .cse9)) (not (fp.lt .cse10 .cse11)) (fp.lt (fp.add c_currentRoundingMode .cse6 .cse12) (fp.sub c_currentRoundingMode .cse7 .cse12)))))))))) is different from false [2021-11-20 07:33:51,582 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse12 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse11 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse12)) (.cse10 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse12))) (let ((.cse0 (fp.add c_currentRoundingMode .cse10 .cse12)) (.cse1 (fp.sub c_currentRoundingMode .cse11 .cse12))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse12)) (.cse2 (fp.add c_currentRoundingMode .cse0 .cse12))) (let ((.cse4 (fp.add c_currentRoundingMode .cse2 .cse12)) (.cse5 (fp.sub c_currentRoundingMode .cse3 .cse12))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse5 .cse12)) (.cse8 (fp.add c_currentRoundingMode .cse4 .cse12))) (let ((.cse6 (fp.add c_currentRoundingMode .cse8 .cse12)) (.cse7 (fp.sub c_currentRoundingMode .cse9 .cse12))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse8 .cse9)) (not (fp.lt .cse10 .cse11)) (fp.lt (fp.add c_currentRoundingMode .cse6 .cse12) (fp.sub c_currentRoundingMode .cse7 .cse12)))))))))) is different from true [2021-11-20 07:34:31,763 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse14 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse12 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse14)) (.cse13 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse14))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse13 .cse14)) (.cse0 (fp.add c_currentRoundingMode .cse12 .cse14))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse14)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse14))) (let ((.cse7 (fp.sub c_currentRoundingMode .cse3 .cse14)) (.cse6 (fp.add c_currentRoundingMode .cse2 .cse14))) (let ((.cse10 (fp.add c_currentRoundingMode .cse6 .cse14)) (.cse11 (fp.sub c_currentRoundingMode .cse7 .cse14))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse11 .cse14)) (.cse8 (fp.add c_currentRoundingMode .cse10 .cse14))) (let ((.cse4 (fp.add c_currentRoundingMode .cse8 .cse14)) (.cse5 (fp.sub c_currentRoundingMode .cse9 .cse14))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse10 .cse11)) (not (fp.lt .cse12 .cse13)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse14) (fp.sub c_currentRoundingMode .cse5 .cse14))))))))))) is different from false [2021-11-20 07:34:33,846 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse14 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse12 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse14)) (.cse13 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse14))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse13 .cse14)) (.cse0 (fp.add c_currentRoundingMode .cse12 .cse14))) (let ((.cse2 (fp.add c_currentRoundingMode .cse0 .cse14)) (.cse3 (fp.sub c_currentRoundingMode .cse1 .cse14))) (let ((.cse7 (fp.sub c_currentRoundingMode .cse3 .cse14)) (.cse6 (fp.add c_currentRoundingMode .cse2 .cse14))) (let ((.cse10 (fp.add c_currentRoundingMode .cse6 .cse14)) (.cse11 (fp.sub c_currentRoundingMode .cse7 .cse14))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse11 .cse14)) (.cse8 (fp.add c_currentRoundingMode .cse10 .cse14))) (let ((.cse4 (fp.add c_currentRoundingMode .cse8 .cse14)) (.cse5 (fp.sub c_currentRoundingMode .cse9 .cse14))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse10 .cse11)) (not (fp.lt .cse12 .cse13)) (fp.lt (fp.add c_currentRoundingMode .cse4 .cse14) (fp.sub c_currentRoundingMode .cse5 .cse14))))))))))) is different from true [2021-11-20 07:35:18,598 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse16 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse10)) (.cse15 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse10))) (let ((.cse0 (fp.add c_currentRoundingMode .cse15 .cse10)) (.cse1 (fp.sub c_currentRoundingMode .cse16 .cse10))) (let ((.cse5 (fp.sub c_currentRoundingMode .cse1 .cse10)) (.cse4 (fp.add c_currentRoundingMode .cse0 .cse10))) (let ((.cse8 (fp.add c_currentRoundingMode .cse4 .cse10)) (.cse9 (fp.sub c_currentRoundingMode .cse5 .cse10))) (let ((.cse14 (fp.sub c_currentRoundingMode .cse9 .cse10)) (.cse13 (fp.add c_currentRoundingMode .cse8 .cse10))) (let ((.cse11 (fp.add c_currentRoundingMode .cse13 .cse10)) (.cse12 (fp.sub c_currentRoundingMode .cse14 .cse10))) (let ((.cse7 (fp.sub c_currentRoundingMode .cse12 .cse10)) (.cse6 (fp.add c_currentRoundingMode .cse11 .cse10))) (let ((.cse2 (fp.add c_currentRoundingMode .cse6 .cse10)) (.cse3 (fp.sub c_currentRoundingMode .cse7 .cse10))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse10) (fp.sub c_currentRoundingMode .cse3 .cse10)) (not (fp.lt .cse11 .cse12)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse13 .cse14)) (not (fp.lt .cse15 .cse16)))))))))))) is different from false [2021-11-20 07:35:20,678 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse16 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse10)) (.cse15 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse10))) (let ((.cse0 (fp.add c_currentRoundingMode .cse15 .cse10)) (.cse1 (fp.sub c_currentRoundingMode .cse16 .cse10))) (let ((.cse5 (fp.sub c_currentRoundingMode .cse1 .cse10)) (.cse4 (fp.add c_currentRoundingMode .cse0 .cse10))) (let ((.cse8 (fp.add c_currentRoundingMode .cse4 .cse10)) (.cse9 (fp.sub c_currentRoundingMode .cse5 .cse10))) (let ((.cse14 (fp.sub c_currentRoundingMode .cse9 .cse10)) (.cse13 (fp.add c_currentRoundingMode .cse8 .cse10))) (let ((.cse11 (fp.add c_currentRoundingMode .cse13 .cse10)) (.cse12 (fp.sub c_currentRoundingMode .cse14 .cse10))) (let ((.cse7 (fp.sub c_currentRoundingMode .cse12 .cse10)) (.cse6 (fp.add c_currentRoundingMode .cse11 .cse10))) (let ((.cse2 (fp.add c_currentRoundingMode .cse6 .cse10)) (.cse3 (fp.sub c_currentRoundingMode .cse7 .cse10))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (fp.lt (fp.add c_currentRoundingMode .cse2 .cse10) (fp.sub c_currentRoundingMode .cse3 .cse10)) (not (fp.lt .cse11 .cse12)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse13 .cse14)) (not (fp.lt .cse15 .cse16)))))))))))) is different from true [2021-11-20 07:36:09,974 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse14 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse17 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse14)) (.cse18 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse14))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse18 .cse14)) (.cse0 (fp.add c_currentRoundingMode .cse17 .cse14))) (let ((.cse4 (fp.add c_currentRoundingMode .cse0 .cse14)) (.cse5 (fp.sub c_currentRoundingMode .cse1 .cse14))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse5 .cse14)) (.cse8 (fp.add c_currentRoundingMode .cse4 .cse14))) (let ((.cse15 (fp.add c_currentRoundingMode .cse8 .cse14)) (.cse16 (fp.sub c_currentRoundingMode .cse9 .cse14))) (let ((.cse13 (fp.sub c_currentRoundingMode .cse16 .cse14)) (.cse12 (fp.add c_currentRoundingMode .cse15 .cse14))) (let ((.cse6 (fp.add c_currentRoundingMode .cse12 .cse14)) (.cse7 (fp.sub c_currentRoundingMode .cse13 .cse14))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse7 .cse14)) (.cse2 (fp.add c_currentRoundingMode .cse6 .cse14))) (let ((.cse10 (fp.add c_currentRoundingMode .cse2 .cse14)) (.cse11 (fp.sub c_currentRoundingMode .cse3 .cse14))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (not (fp.lt .cse10 .cse11)) (not (fp.lt .cse12 .cse13)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (fp.lt (fp.add c_currentRoundingMode .cse10 .cse14) (fp.sub c_currentRoundingMode .cse11 .cse14)) (not (fp.lt .cse15 .cse16)) (not (fp.lt .cse17 .cse18))))))))))))) is different from false [2021-11-20 07:36:12,069 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse14 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse17 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse14)) (.cse18 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse14))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse18 .cse14)) (.cse0 (fp.add c_currentRoundingMode .cse17 .cse14))) (let ((.cse4 (fp.add c_currentRoundingMode .cse0 .cse14)) (.cse5 (fp.sub c_currentRoundingMode .cse1 .cse14))) (let ((.cse9 (fp.sub c_currentRoundingMode .cse5 .cse14)) (.cse8 (fp.add c_currentRoundingMode .cse4 .cse14))) (let ((.cse15 (fp.add c_currentRoundingMode .cse8 .cse14)) (.cse16 (fp.sub c_currentRoundingMode .cse9 .cse14))) (let ((.cse13 (fp.sub c_currentRoundingMode .cse16 .cse14)) (.cse12 (fp.add c_currentRoundingMode .cse15 .cse14))) (let ((.cse6 (fp.add c_currentRoundingMode .cse12 .cse14)) (.cse7 (fp.sub c_currentRoundingMode .cse13 .cse14))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse7 .cse14)) (.cse2 (fp.add c_currentRoundingMode .cse6 .cse14))) (let ((.cse10 (fp.add c_currentRoundingMode .cse2 .cse14)) (.cse11 (fp.sub c_currentRoundingMode .cse3 .cse14))) (or (not (fp.lt .cse0 .cse1)) (not (fp.lt .cse2 .cse3)) (not (fp.lt .cse4 .cse5)) (not (fp.lt .cse6 .cse7)) (not (fp.lt .cse8 .cse9)) (not (fp.lt .cse10 .cse11)) (not (fp.lt .cse12 .cse13)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (fp.lt (fp.add c_currentRoundingMode .cse10 .cse14) (fp.sub c_currentRoundingMode .cse11 .cse14)) (not (fp.lt .cse15 .cse16)) (not (fp.lt .cse17 .cse18))))))))))))) is different from true [2021-11-20 07:37:05,851 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse20 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse1)) (.cse19 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1))) (let ((.cse3 (fp.add c_currentRoundingMode .cse19 .cse1)) (.cse4 (fp.sub c_currentRoundingMode .cse20 .cse1))) (let ((.cse8 (fp.sub c_currentRoundingMode .cse4 .cse1)) (.cse7 (fp.add c_currentRoundingMode .cse3 .cse1))) (let ((.cse11 (fp.add c_currentRoundingMode .cse7 .cse1)) (.cse12 (fp.sub c_currentRoundingMode .cse8 .cse1))) (let ((.cse18 (fp.sub c_currentRoundingMode .cse12 .cse1)) (.cse17 (fp.add c_currentRoundingMode .cse11 .cse1))) (let ((.cse15 (fp.add c_currentRoundingMode .cse17 .cse1)) (.cse16 (fp.sub c_currentRoundingMode .cse18 .cse1))) (let ((.cse10 (fp.sub c_currentRoundingMode .cse16 .cse1)) (.cse9 (fp.add c_currentRoundingMode .cse15 .cse1))) (let ((.cse5 (fp.add c_currentRoundingMode .cse9 .cse1)) (.cse6 (fp.sub c_currentRoundingMode .cse10 .cse1))) (let ((.cse14 (fp.sub c_currentRoundingMode .cse6 .cse1)) (.cse13 (fp.add c_currentRoundingMode .cse5 .cse1))) (let ((.cse0 (fp.add c_currentRoundingMode .cse13 .cse1)) (.cse2 (fp.sub c_currentRoundingMode .cse14 .cse1))) (or (fp.lt (fp.add c_currentRoundingMode .cse0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse7 .cse8)) (not (fp.lt .cse9 .cse10)) (not (fp.lt .cse11 .cse12)) (not (fp.lt .cse13 .cse14)) (not (fp.lt .cse15 .cse16)) (not (fp.lt .cse0 .cse2)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse17 .cse18)) (not (fp.lt .cse19 .cse20)))))))))))))) is different from false [2021-11-20 07:37:07,962 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse20 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse1)) (.cse19 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse1))) (let ((.cse3 (fp.add c_currentRoundingMode .cse19 .cse1)) (.cse4 (fp.sub c_currentRoundingMode .cse20 .cse1))) (let ((.cse8 (fp.sub c_currentRoundingMode .cse4 .cse1)) (.cse7 (fp.add c_currentRoundingMode .cse3 .cse1))) (let ((.cse11 (fp.add c_currentRoundingMode .cse7 .cse1)) (.cse12 (fp.sub c_currentRoundingMode .cse8 .cse1))) (let ((.cse18 (fp.sub c_currentRoundingMode .cse12 .cse1)) (.cse17 (fp.add c_currentRoundingMode .cse11 .cse1))) (let ((.cse15 (fp.add c_currentRoundingMode .cse17 .cse1)) (.cse16 (fp.sub c_currentRoundingMode .cse18 .cse1))) (let ((.cse10 (fp.sub c_currentRoundingMode .cse16 .cse1)) (.cse9 (fp.add c_currentRoundingMode .cse15 .cse1))) (let ((.cse5 (fp.add c_currentRoundingMode .cse9 .cse1)) (.cse6 (fp.sub c_currentRoundingMode .cse10 .cse1))) (let ((.cse14 (fp.sub c_currentRoundingMode .cse6 .cse1)) (.cse13 (fp.add c_currentRoundingMode .cse5 .cse1))) (let ((.cse0 (fp.add c_currentRoundingMode .cse13 .cse1)) (.cse2 (fp.sub c_currentRoundingMode .cse14 .cse1))) (or (fp.lt (fp.add c_currentRoundingMode .cse0 .cse1) (fp.sub c_currentRoundingMode .cse2 .cse1)) (not (fp.lt .cse3 .cse4)) (not (fp.lt .cse5 .cse6)) (not (fp.lt .cse7 .cse8)) (not (fp.lt .cse9 .cse10)) (not (fp.lt .cse11 .cse12)) (not (fp.lt .cse13 .cse14)) (not (fp.lt .cse15 .cse16)) (not (fp.lt .cse0 .cse2)) (not (fp.lt |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (not (fp.lt .cse17 .cse18)) (not (fp.lt .cse19 .cse20)))))))))))))) is different from true