./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_reinit.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_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_reinit.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:11,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:11,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:11,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:11,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:11,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:11,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:11,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:11,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:11,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:11,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:11,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:11,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:11,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:11,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:11,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:11,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:11,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:11,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:11,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:11,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:11,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:11,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:11,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:11,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:11,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:11,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:11,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:11,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:11,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:11,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:11,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:11,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:11,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:11,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:11,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:11,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:11,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:11,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:11,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:11,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:11,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:26:11,598 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:11,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:11,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:11,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:11,600 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:11,600 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:11,601 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:11,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:26:11,601 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:11,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:11,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:26:11,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:26:11,602 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:11,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:26:11,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:26:11,603 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:26:11,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:11,605 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:26:11,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:26:11,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:26:11,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:11,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:11,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:11,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:11,607 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:11,607 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:26:11,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:11,608 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:11,608 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:11,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:11,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:11,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:11,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:11,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:11,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:11,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:26:11,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:26:11,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:11,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:11,612 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:11,612 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 [2021-11-19 14:26:11,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:11,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:11,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:11,991 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:11,992 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:11,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-benchs/filter2_reinit.c [2021-11-19 14:26:12,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/42a7a1db2/6d3356f13eff443cba588b6347287189/FLAGdd39cf31c [2021-11-19 14:26:12,668 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:12,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c [2021-11-19 14:26:12,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/42a7a1db2/6d3356f13eff443cba588b6347287189/FLAGdd39cf31c [2021-11-19 14:26:13,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/42a7a1db2/6d3356f13eff443cba588b6347287189 [2021-11-19 14:26:13,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:13,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:13,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:13,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:13,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:13,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9ade3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13, skipping insertion in model container [2021-11-19 14:26:13,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:13,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:13,386 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_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c[700,713] [2021-11-19 14:26:13,419 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:13,429 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:26:13,441 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_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c[700,713] [2021-11-19 14:26:13,450 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:13,467 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:26:13,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13 WrapperNode [2021-11-19 14:26:13,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:13,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:13,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:26:13,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:26:13,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,515 INFO L137 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2021-11-19 14:26:13,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:13,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:26:13,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:26:13,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:26:13,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:26:13,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:26:13,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:26:13,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:26:13,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (1/1) ... [2021-11-19 14:26:13,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:13,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:13,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:26:13,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:26:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:26:13,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:26:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:26:13,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:26:13,779 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:26:13,781 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:26:13,914 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:26:13,961 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:26:13,962 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:26:13,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:13 BoogieIcfgContainer [2021-11-19 14:26:13,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:26:13,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:26:13,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:26:13,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:26:13,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:26:13" (1/3) ... [2021-11-19 14:26:13,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614eb27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:13, skipping insertion in model container [2021-11-19 14:26:13,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:13" (2/3) ... [2021-11-19 14:26:13,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614eb27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:13, skipping insertion in model container [2021-11-19 14:26:13,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:13" (3/3) ... [2021-11-19 14:26:13,978 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_reinit.c [2021-11-19 14:26:13,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:26:13,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:26:14,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:26:14,055 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:26:14,055 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:26:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:26:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 14:26:14,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:14,100 INFO L514 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:14,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash 501115960, now seen corresponding path program 1 times [2021-11-19 14:26:14,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:26:14,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025278718] [2021-11-19 14:26:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:14,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:26:14,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:26:14,307 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:26:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:26:14,435 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:26:14,437 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:26:14,440 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:26:14,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:26:14,449 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 14:26:14,453 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:26:14,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:26:14 BoogieIcfgContainer [2021-11-19 14:26:14,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:26:14,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:26:14,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:26:14,502 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:26:14,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:13" (3/4) ... [2021-11-19 14:26:14,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:26:14,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:26:14,511 INFO L158 Benchmark]: Toolchain (without parser) took 1477.70ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 73.9MB in the beginning and 100.1MB in the end (delta: -26.2MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-11-19 14:26:14,512 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:14,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.53ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 73.6MB in the beginning and 128.2MB in the end (delta: -54.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:26:14,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.41ms. Allocated memory is still 155.2MB. Free memory was 128.2MB in the beginning and 126.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:14,523 INFO L158 Benchmark]: Boogie Preprocessor took 29.94ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.1MB in the end (delta: 810.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:26:14,524 INFO L158 Benchmark]: RCFGBuilder took 417.42ms. Allocated memory is still 155.2MB. Free memory was 126.1MB in the beginning and 114.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:26:14,526 INFO L158 Benchmark]: TraceAbstraction took 529.59ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 100.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:26:14,527 INFO L158 Benchmark]: Witness Printer took 7.81ms. Allocated memory is still 155.2MB. Free memory is still 100.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:14,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 107.0MB. Free memory was 59.2MB in the beginning and 59.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.53ms. Allocated memory was 107.0MB in the beginning and 155.2MB in the end (delta: 48.2MB). Free memory was 73.6MB in the beginning and 128.2MB in the end (delta: -54.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.41ms. Allocated memory is still 155.2MB. Free memory was 128.2MB in the beginning and 126.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.94ms. Allocated memory is still 155.2MB. Free memory was 126.9MB in the beginning and 126.1MB in the end (delta: 810.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.42ms. Allocated memory is still 155.2MB. Free memory was 126.1MB in the beginning and 114.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 529.59ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 100.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 7.81ms. Allocated memory is still 155.2MB. Free memory is still 100.1MB. There was no memory consumed. 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: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L23] double E, E0, E1, S0, S1, S; [L24] int i; [L26] E = __VERIFIER_nondet_double() [L27] E0 = __VERIFIER_nondet_double() [L28] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L16] COND FALSE !(!cond) [L28] RET assume_abort_if_not(E >= 0. && E <= 1.) [L29] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L16] COND FALSE !(!cond) [L29] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) [L31] S0 = 0 [L32] S = 0 [L34] i = 0 VAL [i=0] [L34] COND TRUE i <= 1000000 [L36] E1 = E0 [L37] E0 = E [L39] E = __VERIFIER_nondet_double() [L40] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L16] COND FALSE !(!cond) [L40] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=49, E=49, E=49, i=0] [L42] COND TRUE __VERIFIER_nondet_int() [L43] E1 = E [L44] E0 = E [L45] S0 = E [L46] S = E [L49] S1 = S0 [L50] S0 = S [L51] S = 0.7*E - E0*1.3 + E1*1.1 + S0*1.4 - S1*0.7 [L53] CALL __VERIFIER_assert(S >= -4. && S <= 4.) [L18] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 3, 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=14occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 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 14:26:14,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/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_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_reinit.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:17,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:17,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:17,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:17,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:17,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:17,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:17,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:17,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:17,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:17,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:17,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:17,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:17,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:17,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:17,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:17,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:17,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:17,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:17,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:17,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:17,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:17,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:17,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:17,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:17,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:17,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:17,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:17,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:17,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:17,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:17,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:17,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:17,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:17,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:17,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:17,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:17,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:17,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:17,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:17,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:17,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:26:17,879 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:17,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:17,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:17,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:17,881 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:17,882 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:17,882 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:17,882 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:17,882 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:17,883 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:17,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:17,884 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:26:17,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:26:17,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:17,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:17,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:17,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:17,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:17,886 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:26:17,886 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:26:17,886 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:26:17,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:17,887 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:17,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:17,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:17,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:26:17,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:17,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:17,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:17,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:17,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:17,889 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:26:17,889 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:17,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:17,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:17,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:17,890 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_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 [2021-11-19 14:26:18,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:18,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:18,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:18,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:18,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:18,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-benchs/filter2_reinit.c [2021-11-19 14:26:18,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/883e5e14f/c52749b579f84b2aae34fd7ae1d1ebf9/FLAGf2f3bc8e4 [2021-11-19 14:26:19,098 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:19,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c [2021-11-19 14:26:19,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/883e5e14f/c52749b579f84b2aae34fd7ae1d1ebf9/FLAGf2f3bc8e4 [2021-11-19 14:26:19,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/data/883e5e14f/c52749b579f84b2aae34fd7ae1d1ebf9 [2021-11-19 14:26:19,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:19,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:19,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:19,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:19,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:19,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:19,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8f1fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19, skipping insertion in model container [2021-11-19 14:26:19,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:19,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:19,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:19,782 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_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c[700,713] [2021-11-19 14:26:19,815 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:19,837 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:26:19,871 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_699200e9-287e-492b-8396-798d5ea2ec99/sv-benchmarks/c/float-benchs/filter2_reinit.c[700,713] [2021-11-19 14:26:19,911 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:19,936 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:26:19,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19 WrapperNode [2021-11-19 14:26:19,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:19,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:19,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:26:19,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:26:19,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:19,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,003 INFO L137 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2021-11-19 14:26:20,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:20,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:26:20,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:26:20,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:26:20,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:26:20,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:26:20,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:26:20,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:26:20,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (1/1) ... [2021-11-19 14:26:20,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:20,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:20,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:26:20,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:26:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:26:20,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:26:20,185 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:26:20,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:26:20,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:26:20,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:26:20,292 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:26:20,295 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:26:22,735 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:26:22,741 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:26:22,741 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:26:22,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:22 BoogieIcfgContainer [2021-11-19 14:26:22,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:26:22,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:26:22,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:26:22,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:26:22,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:26:19" (1/3) ... [2021-11-19 14:26:22,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d919a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:22, skipping insertion in model container [2021-11-19 14:26:22,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:19" (2/3) ... [2021-11-19 14:26:22,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d919a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:26:22, skipping insertion in model container [2021-11-19 14:26:22,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:26:22" (3/3) ... [2021-11-19 14:26:22,774 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_reinit.c [2021-11-19 14:26:22,782 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:26:22,783 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:26:22,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:26:22,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:26:22,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:26:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:26:22,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 14:26:22,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:22,916 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:22,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:22,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:22,924 INFO L85 PathProgramCache]: Analyzing trace with hash 526466326, now seen corresponding path program 1 times [2021-11-19 14:26:22,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:22,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62600553] [2021-11-19 14:26:22,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:22,943 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:22,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:22,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:22,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:26:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:25,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:26:25,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:26:25,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 14:26:25,565 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:25,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62600553] [2021-11-19 14:26:25,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62600553] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:26:25,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:26:25,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:26:25,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126808791] [2021-11-19 14:26:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:25,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:26:25,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:25,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:26:25,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:26:25,645 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:26:25,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:25,696 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2021-11-19 14:26:25,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:26:25,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2021-11-19 14:26:25,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:25,713 INFO L225 Difference]: With dead ends: 41 [2021-11-19 14:26:25,713 INFO L226 Difference]: Without dead ends: 18 [2021-11-19 14:26:25,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:26:25,722 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:25,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:26:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-19 14:26:25,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-19 14:26:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 14:26:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-19 14:26:25,767 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 23 [2021-11-19 14:26:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:25,767 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-19 14:26:25,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-19 14:26:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-19 14:26:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 14:26:25,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:25,771 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:25,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:25,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:25,984 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:26:25,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:25,985 INFO L85 PathProgramCache]: Analyzing trace with hash -398587304, now seen corresponding path program 1 times [2021-11-19 14:26:25,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:25,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758845950] [2021-11-19 14:26:25,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:25,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:25,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:26,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_699200e9-287e-492b-8396-798d5ea2ec99/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:26:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:39,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 14:26:39,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:03,342 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~S0~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.geq |ULTIMATE.start_main_~S0~0#1| (_ +zero 11 53)) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~S0~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| .cse4)))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (let ((.cse0 (fp.leq .cse2 .cse3)) (.cse1 (fp.geq .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse0) (not .cse1))) (and .cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1)))))) is different from false [2021-11-19 14:28:05,393 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~S0~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.geq |ULTIMATE.start_main_~S0~0#1| (_ +zero 11 53)) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~S0~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| .cse4)))) (.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (let ((.cse0 (fp.leq .cse2 .cse3)) (.cse1 (fp.geq .cse2 (fp.neg .cse3)))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse0) (not .cse1))) (and .cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1)))))) is different from true [2021-11-19 14:28:54,801 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~S0~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~S0~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (or (not (fp.leq .cse0 .cse1)) (not (fp.geq .cse0 (fp.neg .cse1))))) (fp.leq |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.geq |ULTIMATE.start_main_~S0~0#1| (_ +zero 11 53)))) is different from false [2021-11-19 14:28:56,858 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~S0~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0)))) (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main_~S0~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~S0~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (or (not (fp.leq .cse0 .cse1)) (not (fp.geq .cse0 (fp.neg .cse1))))) (fp.leq |ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (fp.geq |ULTIMATE.start_main_~S0~0#1| (_ +zero 11 53)))) is different from true [2021-11-19 14:28:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 14:28:56,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:08,493 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-11-19 14:29:10,678 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-11-19 14:29:21,685 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-11-19 14:29:23,817 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-11-19 14:30:07,856 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) (not (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))))) is different from false [2021-11-19 14:30:09,979 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse2)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) (not (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53))) (not (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))))) is different from true [2021-11-19 14:33:34,130 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (fp.leq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (.cse1 (fp.geq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ +zero 11 53)))) (and (or (not .cse0) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse1)) (or (and .cse0 .cse1) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| .cse4)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse2 .cse3) (fp.geq .cse2 (fp.neg .cse3)))))) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse5 (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse7)))) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (or (not (fp.geq .cse5 (fp.neg .cse6))) (not (fp.leq .cse5 .cse6)))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))))) is different from false [2021-11-19 14:33:36,262 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (fp.leq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (.cse1 (fp.geq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ +zero 11 53)))) (and (or (not .cse0) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse1)) (or (and .cse0 .cse1) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| .cse4)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse2 .cse3) (fp.geq .cse2 (fp.neg .cse3)))))) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse5 (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse7)))) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (or (not (fp.geq .cse5 (fp.neg .cse6))) (not (fp.leq .cse5 .cse6)))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))))) is different from true [2021-11-19 14:40:17,881 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (fp.leq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (.cse1 (fp.geq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ +zero 11 53)))) (and (or (not .cse0) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse1)) (or (and .cse0 .cse1) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| .cse4)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse2 .cse3) (fp.geq .cse2 (fp.neg .cse3)))))) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse5 (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse7)))) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (or (not (fp.geq .cse5 (fp.neg .cse6))) (not (fp.leq .cse5 .cse6)))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from false [2021-11-19 14:40:20,000 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ FloatingPoint 11 53))) (or (let ((.cse0 (fp.leq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (.cse1 (fp.geq |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| (_ +zero 11 53)))) (and (or (not .cse0) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32))) (not .cse1)) (or (and .cse0 .cse1) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))))) (let ((.cse2 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E~0#1_BEFORE_CALL_1| .cse4)))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (fp.leq .cse2 .cse3) (fp.geq .cse2 (fp.neg .cse3)))))) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (let ((.cse5 (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 |ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E~0#1| .cse7)))) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (or (not (fp.geq .cse5 (fp.neg .cse6))) (not (fp.leq .cse5 .cse6)))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)))) (= c_assume_abort_if_not_~cond (_ bv0 32))) is different from true