./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL --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-0f8a17c [2021-11-19 05:18:00,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:18:00,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:18:00,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:18:00,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:18:00,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:18:00,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:18:00,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:18:00,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:18:00,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:18:00,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:18:00,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:18:00,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:18:00,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:18:00,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:18:00,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:18:00,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:18:00,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:18:00,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:18:00,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:18:00,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:18:00,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:18:00,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:18:00,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:18:00,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:18:00,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:18:00,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:18:00,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:18:00,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:18:00,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:18:00,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:18:00,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:18:00,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:18:00,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:18:00,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:18:00,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:18:00,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:18:00,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:18:00,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:18:00,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:18:00,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:18:00,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:18:00,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:18:00,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:18:00,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:18:00,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:18:00,745 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:18:00,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:18:00,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:18:00,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:18:00,747 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:18:00,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:18:00,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:18:00,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:18:00,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:18:00,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:18:00,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:18:00,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:18:00,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:18:00,749 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:18:00,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:18:00,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:18:00,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:18:00,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:18:00,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:18:00,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:18:00,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:00,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:18:00,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:18:00,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:18:00,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:18:00,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:18:00,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:18:00,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:18:00,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:18:00,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:18:00,752 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b [2021-11-19 05:18:00,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:18:01,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:18:01,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:18:01,016 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:18:01,017 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:18:01,019 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/loop-1.c [2021-11-19 05:18:01,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/a7bcdaaf4/f2dd0c5dfc454efb8d04c6b0884dfcf8/FLAG45f443aa2 [2021-11-19 05:18:01,549 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:18:01,550 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c [2021-11-19 05:18:01,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/a7bcdaaf4/f2dd0c5dfc454efb8d04c6b0884dfcf8/FLAG45f443aa2 [2021-11-19 05:18:01,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/a7bcdaaf4/f2dd0c5dfc454efb8d04c6b0884dfcf8 [2021-11-19 05:18:01,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:18:01,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:18:01,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:01,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:18:01,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:18:01,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:01" (1/1) ... [2021-11-19 05:18:01,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ba8646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:01, skipping insertion in model container [2021-11-19 05:18:01,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:01" (1/1) ... [2021-11-19 05:18:01,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:18:01,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:18:02,095 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-19 05:18:02,137 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:02,151 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:18:02,172 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-19 05:18:02,177 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:02,192 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:18:02,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02 WrapperNode [2021-11-19 05:18:02,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:02,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:02,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:18:02,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:18:02,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,233 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2021-11-19 05:18:02,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:02,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:18:02,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:18:02,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:18:02,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:18:02,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:18:02,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:18:02,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:18:02,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (1/1) ... [2021-11-19 05:18:02,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:02,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:18:02,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:18:02,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:18:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:18:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:18:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:18:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:18:02,422 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:18:02,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:18:02,521 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:18:02,526 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:18:02,527 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:18:02,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:02 BoogieIcfgContainer [2021-11-19 05:18:02,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:18:02,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:18:02,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:18:02,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:18:02,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:01" (1/3) ... [2021-11-19 05:18:02,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776ceee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:02, skipping insertion in model container [2021-11-19 05:18:02,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:02" (2/3) ... [2021-11-19 05:18:02,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776ceee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:02, skipping insertion in model container [2021-11-19 05:18:02,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:02" (3/3) ... [2021-11-19 05:18:02,552 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-1.c [2021-11-19 05:18:02,572 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:18:02,572 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:18:02,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:18:02,627 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 [2021-11-19 05:18:02,627 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:18:02,641 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) [2021-11-19 05:18:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 05:18:02,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:02,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 05:18:02,648 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:02,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:02,653 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-19 05:18:02,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:18:02,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607731672] [2021-11-19 05:18:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:02,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:18:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:18:02,769 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:18:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:18:02,800 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:18:02,802 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:18:02,804 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:18:02,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:18:02,810 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 05:18:02,813 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:18:02,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:18:02 BoogieIcfgContainer [2021-11-19 05:18:02,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:18:02,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:18:02,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:18:02,831 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:18:02,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:02" (3/4) ... [2021-11-19 05:18:02,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:18:02,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:18:02,836 INFO L158 Benchmark]: Toolchain (without parser) took 907.10ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 67.8MB in the end (delta: 19.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,837 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:18:02,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.20ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 92.7MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.08ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:18:02,839 INFO L158 Benchmark]: Boogie Preprocessor took 30.05ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 90.3MB in the end (delta: 871.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,840 INFO L158 Benchmark]: RCFGBuilder took 262.62ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 81.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,841 INFO L158 Benchmark]: TraceAbstraction took 299.06ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 68.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,842 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.8MB in the end (delta: 321.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:18:02,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.20ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 92.7MB in the end (delta: -5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.08ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.05ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 90.3MB in the end (delta: 871.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.62ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 81.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 299.06ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 68.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.8MB in the end (delta: 321.2kB). 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , 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 [2021-11-19 05:18:02,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/loop-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL --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-0f8a17c [2021-11-19 05:18:05,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:18:05,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:18:05,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:18:05,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:18:05,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:18:05,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:18:05,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:18:05,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:18:05,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:18:05,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:18:05,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:18:05,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:18:05,445 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:18:05,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:18:05,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:18:05,453 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:18:05,454 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:18:05,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:18:05,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:18:05,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:18:05,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:18:05,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:18:05,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:18:05,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:18:05,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:18:05,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:18:05,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:18:05,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:18:05,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:18:05,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:18:05,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:18:05,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:18:05,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:18:05,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:18:05,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:18:05,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:18:05,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:18:05,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:18:05,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:18:05,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:18:05,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 05:18:05,554 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:18:05,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:18:05,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:18:05,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:18:05,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:18:05,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:18:05,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:18:05,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:18:05,559 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:18:05,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:18:05,560 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:18:05,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:18:05,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:18:05,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:18:05,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:18:05,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:18:05,561 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:18:05,561 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:18:05,562 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:18:05,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:18:05,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:18:05,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:18:05,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:18:05,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:18:05,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:18:05,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:05,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:18:05,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:18:05,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:18:05,564 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:18:05,564 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:18:05,565 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:18:05,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:18:05,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:18:05,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:18:05,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:18:05,566 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0545f8921a3072195050599e45eb6fe3a423f5bd887720e0418c3666aaad9b [2021-11-19 05:18:05,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:18:05,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:18:05,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:18:05,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:18:05,975 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:18:05,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/loop-1.c [2021-11-19 05:18:06,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/cff164afa/04c427414b9e4fd0a0168a9b5e78ba0b/FLAG3ea5d367d [2021-11-19 05:18:06,592 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:18:06,593 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c [2021-11-19 05:18:06,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/cff164afa/04c427414b9e4fd0a0168a9b5e78ba0b/FLAG3ea5d367d [2021-11-19 05:18:06,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/data/cff164afa/04c427414b9e4fd0a0168a9b5e78ba0b [2021-11-19 05:18:06,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:18:06,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:18:06,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:06,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:18:06,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:18:06,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:06" (1/1) ... [2021-11-19 05:18:06,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fa960 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:06, skipping insertion in model container [2021-11-19 05:18:06,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:06" (1/1) ... [2021-11-19 05:18:06,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:18:07,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:18:07,188 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-19 05:18:07,206 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:07,221 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:18:07,238 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_60a58def-ec12-4e13-9096-d69fe0d3b6d6/sv-benchmarks/c/float-benchs/loop-1.c[311,324] [2021-11-19 05:18:07,243 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:07,277 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:18:07,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07 WrapperNode [2021-11-19 05:18:07,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:07,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:07,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:18:07,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:18:07,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,336 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2021-11-19 05:18:07,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:07,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:18:07,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:18:07,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:18:07,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:18:07,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:18:07,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:18:07,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:18:07,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (1/1) ... [2021-11-19 05:18:07,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:07,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:18:07,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:18:07,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:18:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:18:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:18:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:18:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:18:07,547 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:18:07,549 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:18:08,120 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:18:08,125 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:18:08,125 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 05:18:08,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:08 BoogieIcfgContainer [2021-11-19 05:18:08,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:18:08,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:18:08,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:18:08,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:18:08,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:06" (1/3) ... [2021-11-19 05:18:08,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55dd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:08, skipping insertion in model container [2021-11-19 05:18:08,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:07" (2/3) ... [2021-11-19 05:18:08,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c55dd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:08, skipping insertion in model container [2021-11-19 05:18:08,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:08" (3/3) ... [2021-11-19 05:18:08,135 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-1.c [2021-11-19 05:18:08,141 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:18:08,141 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:18:08,188 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:18:08,196 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 [2021-11-19 05:18:08,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:18:08,231 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) [2021-11-19 05:18:08,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 05:18:08,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:08,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-19 05:18:08,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:08,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:08,243 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-11-19 05:18:08,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:18:08,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056113646] [2021-11-19 05:18:08,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:08,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:18:08,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:18:08,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:18:08,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:18:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:18:08,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 05:18:08,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:18:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:08,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:18:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:08,570 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:18:08,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2056113646] [2021-11-19 05:18:08,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2056113646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:18:08,571 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:18:08,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 05:18:08,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475570111] [2021-11-19 05:18:08,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:18:08,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 05:18:08,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:18:08,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 05:18:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 05:18:08,620 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) [2021-11-19 05:18:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:18:08,646 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-11-19 05:18:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 05:18:08,650 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 [2021-11-19 05:18:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:18:08,658 INFO L225 Difference]: With dead ends: 20 [2021-11-19 05:18:08,659 INFO L226 Difference]: Without dead ends: 8 [2021-11-19 05:18:08,662 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 [2021-11-19 05:18:08,667 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 [2021-11-19 05:18:08,669 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] [2021-11-19 05:18:08,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-11-19 05:18:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-11-19 05:18:08,692 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) [2021-11-19 05:18:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-11-19 05:18:08,694 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-11-19 05:18:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:18:08,695 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-11-19 05:18:08,695 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) [2021-11-19 05:18:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-11-19 05:18:08,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 05:18:08,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:08,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:08,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:18:08,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:18:08,913 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:08,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:08,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-11-19 05:18:08,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:18:08,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1316724508] [2021-11-19 05:18:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:08,915 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:18:08,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:18:08,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:18:08,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:18:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:18:09,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 05:18:09,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:18:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:09,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:18:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:12,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:18:12,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1316724508] [2021-11-19 05:18:12,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1316724508] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:18:12,727 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:18:12,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-11-19 05:18:12,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170183577] [2021-11-19 05:18:12,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:18:12,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 05:18:12,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:18:12,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 05:18:12,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=25, Unknown=1, NotChecked=0, Total=42 [2021-11-19 05:18:12,730 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) [2021-11-19 05:18:19,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:18:20,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:18:21,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:18:21,535 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-11-19 05:18:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 05:18:21,540 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 [2021-11-19 05:18:21,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:18:21,541 INFO L225 Difference]: With dead ends: 15 [2021-11-19 05:18:21,541 INFO L226 Difference]: Without dead ends: 11 [2021-11-19 05:18:21,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=36, Invalid=53, Unknown=1, NotChecked=0, Total=90 [2021-11-19 05:18:21,543 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:18:21,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-19 05:18:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-19 05:18:21,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-19 05:18:21,548 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) [2021-11-19 05:18:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-11-19 05:18:21,548 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2021-11-19 05:18:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:18:21,549 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-11-19 05:18:21,549 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) [2021-11-19 05:18:21,549 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-11-19 05:18:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 05:18:21,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:21,551 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:21,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 05:18:21,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:18:21,752 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:21,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:21,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times [2021-11-19 05:18:21,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:18:21,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588279415] [2021-11-19 05:18:21,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 05:18:21,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:18:21,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:18:21,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:18:21,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 05:18:22,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 05:18:22,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:18:22,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 05:18:22,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:18:23,306 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:23,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:18:50,253 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 [2021-11-19 05:18:56,340 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 [2021-11-19 05:18:58,366 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 [2021-11-19 05:18:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2021-11-19 05:18:58,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:18:58,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588279415] [2021-11-19 05:18:58,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588279415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:18:58,383 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:18:58,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-11-19 05:18:58,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728854765] [2021-11-19 05:18:58,384 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:18:58,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 05:18:58,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:18:58,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 05:18:58,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=70, Unknown=6, NotChecked=38, Total=156 [2021-11-19 05:18:58,385 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) [2021-11-19 05:19:02,863 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) |c_ULTIMATE.start_main_~y~0#1|) (fp.lt (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0) .cse0) .cse0) .cse0) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0) .cse0) .cse0) .cse0)) (= .cse0 |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-19 05:19:24,919 WARN L227 SmtUtils]: Spent 9.35s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 05:19:26,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:34,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:36,297 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:39,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:40,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:42,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:44,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:19:44,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:19:44,450 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2021-11-19 05:19:44,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-19 05:19:44,456 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 [2021-11-19 05:19:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:19:44,456 INFO L225 Difference]: With dead ends: 19 [2021-11-19 05:19:44,456 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 05:19:44,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=84, Invalid=131, Unknown=7, NotChecked=84, Total=306 [2021-11-19 05:19:44,461 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-19 05:19:44,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 40 Invalid, 4 Unknown, 22 Unchecked, 18.1s Time] [2021-11-19 05:19:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 05:19:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 05:19:44,466 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) [2021-11-19 05:19:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-19 05:19:44,467 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2021-11-19 05:19:44,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:19:44,468 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-19 05:19:44,468 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) [2021-11-19 05:19:44,468 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-19 05:19:44,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 05:19:44,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:19:44,469 INFO L514 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1] [2021-11-19 05:19:44,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 05:19:44,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:19:44,670 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:19:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:19:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1620705621, now seen corresponding path program 3 times [2021-11-19 05:19:44,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:19:44,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156187798] [2021-11-19 05:19:44,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 05:19:44,672 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:19:44,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:19:44,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:19:44,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 05:19:45,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-11-19 05:19:45,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:19:45,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 05:19:45,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:20:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:20:03,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:20:33,821 WARN L227 SmtUtils]: Spent 10.19s 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) [2021-11-19 05:20:53,472 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 [2021-11-19 05:21:11,243 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 [2021-11-19 05:21:13,279 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 [2021-11-19 05:21:31,807 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 [2021-11-19 05:21:33,844 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 [2021-11-19 05:21:52,464 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 [2021-11-19 05:21:54,511 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 [2021-11-19 05:22:13,233 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 [2021-11-19 05:22:15,286 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 [2021-11-19 05:22:35,419 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 [2021-11-19 05:22:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 1 times theorem prover too weak. 0 trivial. 33 not checked. [2021-11-19 05:22:35,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:22:35,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156187798] [2021-11-19 05:22:35,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156187798] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 05:22:35,446 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-19 05:22:35,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2021-11-19 05:22:35,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575889209] [2021-11-19 05:22:35,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-19 05:22:35,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-19 05:22:35,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:22:35,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-19 05:22:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=149, Unknown=11, NotChecked=186, Total=420 [2021-11-19 05:22:35,449 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) [2021-11-19 05:22:38,662 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 [] [2021-11-19 05:22:41,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:22:43,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:22:45,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:22:47,737 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 [2021-11-19 05:22:49,793 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 [2021-11-19 05:22:51,847 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 [2021-11-19 05:22:53,900 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 [2021-11-19 05:22:57,727 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 [2021-11-19 05:23:01,237 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (= (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~x~0#1|) (= (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 10000000.0)) .cse0) .cse0) .cse0) .cse0) |c_ULTIMATE.start_main_~y~0#1|) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse5 (fp.add c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| .cse0)) (.cse6 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~y~0#1| .cse0))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse6 .cse0)) (.cse1 (fp.add c_currentRoundingMode .cse5 .cse0))) (let ((.cse3 (fp.add c_currentRoundingMode .cse1 .cse0)) (.cse4 (fp.sub c_currentRoundingMode .cse2 .cse0))) (or (not (fp.lt .cse1 .cse2)) (not (fp.lt .cse3 .cse4)) (fp.lt (fp.add c_currentRoundingMode .cse3 .cse0) (fp.sub c_currentRoundingMode .cse4 .cse0)) (not (fp.lt .cse5 .cse6)))))))) is different from true [2021-11-19 05:23:12,101 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:23:47,451 WARN L227 SmtUtils]: Spent 22.85s on a formula simplification. DAG size of input: 19 DAG size of output: 15 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 05:23:49,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:00,427 WARN L227 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 14 DAG size of output: 12 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 05:24:02,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:04,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:08,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:47,912 WARN L227 SmtUtils]: Spent 29.50s on a formula simplification. DAG size of input: 19 DAG size of output: 18 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 05:24:49,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:51,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 05:24:51,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:24:51,709 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-11-19 05:24:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 05:24:51,738 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 [2021-11-19 05:24:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:24:51,739 INFO L225 Difference]: With dead ends: 23 [2021-11-19 05:24:51,739 INFO L226 Difference]: Without dead ends: 19 [2021-11-19 05:24:51,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 175.3s TimeCoverageRelationStatistics Valid=151, Invalid=256, Unknown=17, NotChecked=506, Total=930 [2021-11-19 05:24:51,741 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 76 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2021-11-19 05:24:51,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 59 Invalid, 6 Unknown, 76 Unchecked, 25.8s Time] [2021-11-19 05:24:51,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-19 05:24:51,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-19 05:24:51,750 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) [2021-11-19 05:24:51,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-19 05:24:51,751 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2021-11-19 05:24:51,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:24:51,751 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-19 05:24:51,752 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) [2021-11-19 05:24:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-19 05:24:51,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 05:24:51,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:24:51,753 INFO L514 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1] [2021-11-19 05:24:51,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 05:24:51,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:24:51,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:24:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:24:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1499312107, now seen corresponding path program 4 times [2021-11-19 05:24:51,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:24:51,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114697926] [2021-11-19 05:24:51,960 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 05:24:51,960 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:24:51,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:24:51,961 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:24:51,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60a58def-ec12-4e13-9096-d69fe0d3b6d6/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 05:24:54,474 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 05:24:54,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 05:24:54,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-19 05:24:54,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:26:06,289 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:26:06,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:26:45,062 WARN L227 SmtUtils]: Spent 10.35s 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) [2021-11-19 05:27:02,592 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 [2021-11-19 05:27:04,625 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 [2021-11-19 05:27:27,283 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 [2021-11-19 05:27:29,322 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 [2021-11-19 05:27:56,302 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 [2021-11-19 05:27:58,354 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 [2021-11-19 05:28:29,646 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 [2021-11-19 05:28:31,715 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 [2021-11-19 05:29:07,349 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 [2021-11-19 05:29:09,420 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 [2021-11-19 05:29:49,463 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 [2021-11-19 05:29:51,529 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 [2021-11-19 05:30:35,902 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 [2021-11-19 05:30:37,993 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 [2021-11-19 05:31:26,966 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 [2021-11-19 05:31:29,052 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 [2021-11-19 05:32:22,528 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 [2021-11-19 05:32:24,626 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