./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 062a802759b4aa2a0cbcb5cdde30f3437c09c950e76bee485cf882952e2d339f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:20,261 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:20,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:30:20,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:20,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:20,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:20,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:20,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:20,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:20,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:20,499 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:20,500 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:20,500 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:20,501 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:30:20,501 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:20,502 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:20,502 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:30:20,503 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:30:20,503 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:20,504 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:30:20,514 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:30:20,515 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:30:20,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:20,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:20,517 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:20,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:30:20,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:20,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:20,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:20,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:20,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:20,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:20,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:20,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:20,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:20,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:20,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:20,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:20,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:20,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:20,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:20,530 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:30:20,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:30:20,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:20,531 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:20,532 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:20,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:20,532 INFO L153 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_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062a802759b4aa2a0cbcb5cdde30f3437c09c950e76bee485cf882952e2d339f [2023-11-23 21:30:20,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:21,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:21,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:21,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:21,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:21,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:24,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:24,713 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:24,714 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:24,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/a62090c88/6666edab33254f938d10b94887c35295/FLAG85418a11d [2023-11-23 21:30:24,744 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/a62090c88/6666edab33254f938d10b94887c35295 [2023-11-23 21:30:24,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:24,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:24,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:24,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:24,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:24,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:24" (1/1) ... [2023-11-23 21:30:24,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e13650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:24, skipping insertion in model container [2023-11-23 21:30:24,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:24" (1/1) ... [2023-11-23 21:30:24,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:24,979 WARN L240 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_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i[919,932] [2023-11-23 21:30:25,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:25,105 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:25,118 WARN L240 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_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i[919,932] [2023-11-23 21:30:25,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:25,185 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:25,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25 WrapperNode [2023-11-23 21:30:25,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:25,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:25,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:25,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:25,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,275 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 189 [2023-11-23 21:30:25,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:25,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:25,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:25,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:25,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:25,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:25,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:25,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:25,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (1/1) ... [2023-11-23 21:30:25,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:25,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:25,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:25,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:30:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:25,592 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:25,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:26,159 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:26,543 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:26,544 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:26,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:26 BoogieIcfgContainer [2023-11-23 21:30:26,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:26,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:26,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:26,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:26,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:24" (1/3) ... [2023-11-23 21:30:26,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68aaa886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:26, skipping insertion in model container [2023-11-23 21:30:26,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:25" (2/3) ... [2023-11-23 21:30:26,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68aaa886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:26, skipping insertion in model container [2023-11-23 21:30:26,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:26" (3/3) ... [2023-11-23 21:30:26,561 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:26,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:26,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:26,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:26,673 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@55f7ad6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:26,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:30:26,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-23 21:30:26,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:26,695 INFO L195 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:26,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:26,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:26,702 INFO L85 PathProgramCache]: Analyzing trace with hash 41512028, now seen corresponding path program 1 times [2023-11-23 21:30:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:26,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495090327] [2023-11-23 21:30:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:26,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:26,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:30:26,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609433089] [2023-11-23 21:30:26,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:26,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:26,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:26,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:30:27,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:30:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:27,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:30:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:30:27,907 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:30:27,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:30:27,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:30:27,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:28,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:30:28,129 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:30:28,133 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:30:28,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:30:28 BoogieIcfgContainer [2023-11-23 21:30:28,286 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:30:28,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:30:28,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:30:28,287 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:30:28,288 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:26" (3/4) ... [2023-11-23 21:30:28,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:30:28,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:30:28,296 INFO L158 Benchmark]: Toolchain (without parser) took 3547.83ms. Allocated memory is still 165.7MB. Free memory was 135.3MB in the beginning and 125.1MB in the end (delta: 10.1MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,297 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 125.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:28,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.10ms. Allocated memory is still 165.7MB. Free memory was 134.8MB in the beginning and 119.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.00ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 115.0MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,306 INFO L158 Benchmark]: Boogie Preprocessor took 55.93ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 112.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,307 INFO L158 Benchmark]: RCFGBuilder took 1212.06ms. Allocated memory is still 165.7MB. Free memory was 112.4MB in the beginning and 107.0MB in the end (delta: 5.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,309 INFO L158 Benchmark]: TraceAbstraction took 1731.18ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 126.2MB in the end (delta: -19.7MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2023-11-23 21:30:28,309 INFO L158 Benchmark]: Witness Printer took 9.18ms. Allocated memory is still 165.7MB. Free memory was 126.2MB in the beginning and 125.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:30:28,318 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 125.8MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.10ms. Allocated memory is still 165.7MB. Free memory was 134.8MB in the beginning and 119.8MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.00ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 115.0MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.93ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 112.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1212.06ms. Allocated memory is still 165.7MB. Free memory was 112.4MB in the beginning and 107.0MB in the end (delta: 5.5MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1731.18ms. Allocated memory is still 165.7MB. Free memory was 106.5MB in the beginning and 126.2MB in the end (delta: -19.7MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 9.18ms. Allocated memory is still 165.7MB. Free memory was 126.2MB in the beginning and 125.1MB in the end (delta: 1.0MB). 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: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 80, overapproximation of shiftRight at line 87, overapproximation of someUnaryDOUBLEoperation at line 81, overapproximation of someBinaryArithmeticDOUBLEoperation at line 101, overapproximation of someBinaryDOUBLEComparisonOperation at line 55. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] signed char var_1_4 = 16; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_8 = 1; [L27] unsigned char var_1_9 = 0; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 64; [L30] signed char var_1_12 = -10; [L31] signed char var_1_13 = -10; [L32] signed char var_1_14 = -25; [L33] double var_1_15 = 64.875; [L34] double var_1_17 = 1.625; [L35] double var_1_18 = 32.2; [L36] double var_1_19 = 8.6; [L37] double var_1_20 = 10.5; [L38] signed short int var_1_21 = -64; [L39] unsigned char var_1_22 = 25; [L40] unsigned char var_1_23 = 0; [L41] unsigned long int var_1_24 = 5; [L42] double var_1_25 = 0.75; [L43] unsigned char var_1_27 = 4; [L44] signed short int var_1_35 = -64; [L45] signed char var_1_36 = -10; [L46] signed long int var_1_39 = 256; [L47] double var_1_40 = 31.6; [L48] signed short int var_1_42 = 5; [L49] signed short int last_1_var_1_21 = -64; [L50] unsigned char last_1_var_1_22 = 25; [L169] isInitial = 1 [L170] FCALL initially() [L171] COND TRUE 1 [L172] CALL updateLastVariables() [L161] last_1_var_1_21 = var_1_21 [L162] last_1_var_1_22 = var_1_22 [L172] RET updateLastVariables() [L173] CALL updateVariables() [L127] var_1_4 = __VERIFIER_nondet_char() [L128] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L128] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L129] CALL assume_abort_if_not(var_1_4 <= 32) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L129] RET assume_abort_if_not(var_1_4 <= 32) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=1, var_1_6=1, var_1_8=1, var_1_9=0] [L130] var_1_5 = __VERIFIER_nondet_uchar() [L131] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L131] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_6=1, var_1_8=1, var_1_9=0] [L132] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L132] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=1, var_1_8=1, var_1_9=0] [L133] var_1_6 = __VERIFIER_nondet_uchar() [L134] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L134] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_8=1, var_1_9=0] [L135] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L135] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L136] var_1_9 = __VERIFIER_nondet_uchar() [L137] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1] [L20] COND FALSE !(!cond) [L137] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1] [L138] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L138] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=128, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L139] var_1_10 = __VERIFIER_nondet_uchar() [L140] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L141] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L141] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=64, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L142] var_1_11 = __VERIFIER_nondet_uchar() [L143] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L144] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L144] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=-10, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L145] var_1_13 = __VERIFIER_nondet_char() [L146] CALL assume_abort_if_not(var_1_13 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_13 >= -31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L147] CALL assume_abort_if_not(var_1_13 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_13 <= 31) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=-25, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L148] var_1_14 = __VERIFIER_nondet_char() [L149] CALL assume_abort_if_not(var_1_14 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not(var_1_14 >= -63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L150] CALL assume_abort_if_not(var_1_14 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L150] RET assume_abort_if_not(var_1_14 <= 63) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_17=13/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L151] var_1_17 = __VERIFIER_nondet_double() [L152] CALL assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not((var_1_17 >= 0.0F && var_1_17 <= -1.0e-20F) || (var_1_17 <= 4611686.018427382800e+12F && var_1_17 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_18=161/5, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L153] var_1_18 = __VERIFIER_nondet_double() [L154] CALL assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not((var_1_18 >= 0.0F && var_1_18 <= -1.0e-20F) || (var_1_18 <= 4611686.018427382800e+12F && var_1_18 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_19=43/5, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L155] var_1_19 = __VERIFIER_nondet_double() [L156] CALL assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L156] RET assume_abort_if_not((var_1_19 >= -230584.3009213691390e+13F && var_1_19 <= -1.0e-20F) || (var_1_19 <= 2305843.009213691390e+12F && var_1_19 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_1=32, var_1_20=21/2, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L157] var_1_20 = __VERIFIER_nondet_double() [L158] CALL assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) [L158] RET assume_abort_if_not((var_1_20 >= -230584.3009213691390e+13F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 2305843.009213691390e+12F && var_1_20 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=-10, var_1_13=31, var_1_14=3, var_1_15=519/8, var_1_1=32, var_1_21=-64, var_1_22=25, var_1_23=0, var_1_24=5, var_1_25=3/4, var_1_27=4, var_1_35=-64, var_1_36=-10, var_1_39=256, var_1_40=158/5, var_1_42=5, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L173] RET updateVariables() [L174] CALL step() [L54] var_1_25 = var_1_19 [L55] COND TRUE (var_1_20 >= var_1_18) && (var_1_11 >= var_1_22) [L56] COND FALSE !(\read(var_1_9)) [L59] var_1_27 = (((((128) < 0 ) ? -(128) : (128))) - var_1_11) [L62] COND TRUE var_1_20 > var_1_18 [L63] COND TRUE var_1_4 >= var_1_4 [L64] var_1_35 = ((((((((var_1_10 + var_1_4)) < (var_1_4)) ? ((var_1_10 + var_1_4)) : (var_1_4))) < 0 ) ? -(((((var_1_10 + var_1_4)) < (var_1_4)) ? ((var_1_10 + var_1_4)) : (var_1_4))) : (((((var_1_10 + var_1_4)) < (var_1_4)) ? ((var_1_10 + var_1_4)) : (var_1_4))))) [L67] COND TRUE var_1_11 >= (var_1_11 % ((((var_1_10) < 0 ) ? -(var_1_10) : (var_1_10)))) [L68] COND FALSE !(var_1_11 < var_1_4) [L74] COND TRUE var_1_1 > var_1_4 [L75] var_1_39 = ((((var_1_1) < (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))) ? (var_1_1) : (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) [L77] COND FALSE !(var_1_21 < ((((var_1_4) < (-64)) ? (var_1_4) : (-64)))) [L80] EXPR var_1_11 | var_1_4 [L80] COND TRUE (var_1_11 | var_1_4) < (8 + var_1_11) [L81] var_1_40 = (((((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))) < 0 ) ? -((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))) : ((((((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) > (var_1_19)) ? (((((var_1_18) < 0 ) ? -(var_1_18) : (var_1_18)))) : (var_1_19))))) [L84] var_1_42 = var_1_22 [L85] signed long int stepLocal_1 = ~ last_1_var_1_21; [L86] unsigned char stepLocal_0 = var_1_5; [L87] EXPR last_1_var_1_22 >> var_1_4 [L87] COND TRUE stepLocal_1 != (last_1_var_1_22 >> var_1_4) [L88] COND FALSE !(stepLocal_0 || var_1_6) [L91] var_1_1 = last_1_var_1_22 [L96] COND FALSE !(\read(var_1_9)) [L99] unsigned short int stepLocal_3 = var_1_1; [L100] COND FALSE !(var_1_4 > stepLocal_3) [L103] var_1_15 = var_1_17 [L105] COND TRUE ((- var_1_11) < 8) || var_1_9 [L106] var_1_22 = (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) [L108] var_1_23 = (var_1_11 + var_1_4) [L109] COND TRUE var_1_18 <= var_1_20 [L110] var_1_24 = ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))) [L116] COND FALSE !(var_1_6 || var_1_9) [L121] signed short int stepLocal_2 = var_1_21; [L122] COND TRUE var_1_10 > stepLocal_2 [L123] var_1_12 = ((var_1_4 + var_1_13) + var_1_14) [L174] RET step() [L175] CALL, EXPR property() [L165] EXPR last_1_var_1_22 >> var_1_4 [L165-L166] return (((((((((~ last_1_var_1_21) != (last_1_var_1_22 >> var_1_4)) ? ((var_1_5 || var_1_6) ? (var_1_1 == ((unsigned short int) var_1_4)) : (var_1_1 == ((unsigned short int) last_1_var_1_22))) : (var_1_1 == ((unsigned short int) 100))) && (var_1_9 ? (var_1_8 == ((unsigned char) (var_1_10 - (var_1_11 - var_1_4)))) : 1)) && ((var_1_10 > var_1_21) ? (var_1_12 == ((signed char) ((var_1_4 + var_1_13) + var_1_14))) : 1)) && ((var_1_4 > var_1_1) ? (var_1_15 == ((double) ((var_1_17 - var_1_18) + (((((var_1_19) > (499.25)) ? (var_1_19) : (499.25))) + var_1_20)))) : (var_1_15 == ((double) var_1_17)))) && ((var_1_6 || var_1_9) ? (((var_1_24 % var_1_10) > var_1_22) ? (var_1_21 == ((signed short int) (((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))) + var_1_14))) : 1) : 1)) && ((((- var_1_11) < 8) || var_1_9) ? (var_1_22 == ((unsigned char) (var_1_4 + ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))) : 1)) && (var_1_23 == ((unsigned char) (var_1_11 + var_1_4)))) && ((var_1_18 <= var_1_20) ? (var_1_24 == ((unsigned long int) ((((var_1_8) < ((var_1_8 + var_1_11))) ? (var_1_8) : ((var_1_8 + var_1_11)))))) : ((9.99999999999998E13 < var_1_20) ? (var_1_24 == ((unsigned long int) var_1_1)) : 1)) ; [L175] RET, EXPR property() [L175] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=34, var_1_13=31, var_1_14=3, var_1_15=3, var_1_17=3, var_1_18=0, var_1_19=4, var_1_1=25, var_1_21=-64, var_1_22=123, var_1_23=123, var_1_24=1, var_1_25=4, var_1_27=5, var_1_35=0, var_1_36=-10, var_1_39=32, var_1_40=2, var_1_42=25, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_21=-64, last_1_var_1_22=25, var_1_10=127, var_1_11=123, var_1_12=34, var_1_13=31, var_1_14=3, var_1_15=3, var_1_17=3, var_1_18=0, var_1_19=4, var_1_1=25, var_1_21=-64, var_1_22=123, var_1_23=123, var_1_24=1, var_1_25=4, var_1_27=5, var_1_35=0, var_1_36=-10, var_1_39=32, var_1_40=2, var_1_42=25, var_1_4=0, var_1_5=0, var_1_6=0, var_1_8=1, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 1, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 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 [2023-11-23 21:30:28,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 062a802759b4aa2a0cbcb5cdde30f3437c09c950e76bee485cf882952e2d339f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:30:31,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:30:31,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:30:31,434 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:30:31,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:30:31,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:30:31,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:30:31,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:30:31,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:30:31,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:30:31,495 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:30:31,495 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:30:31,496 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:30:31,498 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:30:31,498 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:30:31,499 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:30:31,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:30:31,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:30:31,501 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:30:31,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:30:31,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:30:31,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:30:31,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:30:31,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:30:31,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:30:31,505 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:30:31,505 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:30:31,506 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:30:31,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:30:31,507 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:30:31,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:30:31,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:30:31,509 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:30:31,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:30:31,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:31,510 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:30:31,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:30:31,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:30:31,511 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:30:31,512 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:30:31,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:30:31,513 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:30:31,513 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:30:31,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:30:31,514 INFO L153 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_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062a802759b4aa2a0cbcb5cdde30f3437c09c950e76bee485cf882952e2d339f [2023-11-23 21:30:31,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:30:32,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:30:32,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:30:32,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:30:32,008 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:30:32,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:35,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:30:35,798 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:30:35,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:35,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/f55422f3a/bbcee5b30ce74f1c91327ab69796db55/FLAG129ea9774 [2023-11-23 21:30:35,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/data/f55422f3a/bbcee5b30ce74f1c91327ab69796db55 [2023-11-23 21:30:35,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:30:35,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:30:35,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:35,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:30:35,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:30:35,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:35" (1/1) ... [2023-11-23 21:30:35,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f93f52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:35, skipping insertion in model container [2023-11-23 21:30:35,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:30:35" (1/1) ... [2023-11-23 21:30:35,884 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:30:36,093 WARN L240 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_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i[919,932] [2023-11-23 21:30:36,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:36,213 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:30:36,235 WARN L240 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_2332603e-db5c-47fe-a919-2283c8af70be/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i[919,932] [2023-11-23 21:30:36,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:30:36,342 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:30:36,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36 WrapperNode [2023-11-23 21:30:36,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:30:36,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:36,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:30:36,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:30:36,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,431 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2023-11-23 21:30:36,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:30:36,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:30:36,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:30:36,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:30:36,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,459 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,459 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:30:36,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:30:36,515 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:30:36,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:30:36,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (1/1) ... [2023-11-23 21:30:36,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:30:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:30:36,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:30:36,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:30:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:30:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:30:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:30:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:30:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:30:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:30:36,717 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:30:36,720 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:30:41,603 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:30:41,693 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:30:41,693 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:30:41,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:41 BoogieIcfgContainer [2023-11-23 21:30:41,694 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:30:41,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:30:41,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:30:41,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:30:41,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:30:35" (1/3) ... [2023-11-23 21:30:41,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d43422d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:41, skipping insertion in model container [2023-11-23 21:30:41,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:30:36" (2/3) ... [2023-11-23 21:30:41,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d43422d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:30:41, skipping insertion in model container [2023-11-23 21:30:41,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:30:41" (3/3) ... [2023-11-23 21:30:41,703 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-13.i [2023-11-23 21:30:41,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:30:41,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:30:41,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:30:41,826 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@75caa988, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:30:41,827 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:30:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:30:41,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 21:30:41,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:41,860 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:41,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:41,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash 665288238, now seen corresponding path program 1 times [2023-11-23 21:30:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:41,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311296391] [2023-11-23 21:30:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:41,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:41,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:41,904 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:30:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:42,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:30:42,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:42,648 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2023-11-23 21:30:42,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:30:42,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311296391] [2023-11-23 21:30:42,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1311296391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:42,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:42,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:30:42,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96090973] [2023-11-23 21:30:42,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:42,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:30:42,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:42,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:30:42,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:42,708 INFO L87 Difference]: Start difference. First operand has 69 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 47 states have internal predecessors, (71), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:30:44,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:44,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:44,868 INFO L93 Difference]: Finished difference Result 135 states and 240 transitions. [2023-11-23 21:30:44,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:30:44,899 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 133 [2023-11-23 21:30:44,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:44,907 INFO L225 Difference]: With dead ends: 135 [2023-11-23 21:30:44,908 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 21:30:44,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:30:44,915 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:44,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 21:30:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 21:30:44,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-11-23 21:30:44,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 45 states have (on average 1.4) internal successors, (63), 45 states have internal predecessors, (63), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-23 21:30:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 103 transitions. [2023-11-23 21:30:44,984 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 103 transitions. Word has length 133 [2023-11-23 21:30:44,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:44,985 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 103 transitions. [2023-11-23 21:30:44,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:30:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 103 transitions. [2023-11-23 21:30:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 21:30:44,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:44,990 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:30:45,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:30:45,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:45,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:30:45,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:45,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1097244396, now seen corresponding path program 1 times [2023-11-23 21:30:45,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:30:45,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070331780] [2023-11-23 21:30:45,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:30:45,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:30:45,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:30:45,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:30:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:45,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:30:45,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:30:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 19 proven. 57 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-23 21:30:47,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:30:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:30:49,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:30:49,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070331780] [2023-11-23 21:30:49,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070331780] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-23 21:30:49,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:30:49,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-23 21:30:49,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613678060] [2023-11-23 21:30:49,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:49,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:30:49,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:30:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:30:49,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:30:49,293 INFO L87 Difference]: Start difference. First operand 67 states and 103 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:30:51,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:53,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:55,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:56,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:59,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:01,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:03,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:03,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:03,599 INFO L93 Difference]: Finished difference Result 219 states and 336 transitions. [2023-11-23 21:31:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:31:03,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 134 [2023-11-23 21:31:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:03,613 INFO L225 Difference]: With dead ends: 219 [2023-11-23 21:31:03,614 INFO L226 Difference]: Without dead ends: 153 [2023-11-23 21:31:03,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:31:03,616 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 170 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:03,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 190 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 6 Unknown, 0 Unchecked, 14.3s Time] [2023-11-23 21:31:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-23 21:31:03,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 137. [2023-11-23 21:31:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-23 21:31:03,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 213 transitions. [2023-11-23 21:31:03,654 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 213 transitions. Word has length 134 [2023-11-23 21:31:03,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:03,655 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 213 transitions. [2023-11-23 21:31:03,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-23 21:31:03,658 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 213 transitions. [2023-11-23 21:31:03,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-23 21:31:03,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:03,662 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:03,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:03,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:03,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:03,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:03,877 INFO L85 PathProgramCache]: Analyzing trace with hash -941582356, now seen corresponding path program 1 times [2023-11-23 21:31:03,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:03,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906807929] [2023-11-23 21:31:03,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:03,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:03,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:03,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:03,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:31:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:04,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:31:04,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:31:06,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:06,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:06,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906807929] [2023-11-23 21:31:06,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906807929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:06,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:31:06,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:31:06,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967556393] [2023-11-23 21:31:06,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:06,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:31:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:31:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:31:06,380 INFO L87 Difference]: Start difference. First operand 137 states and 213 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:31:09,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:11,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:31:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:31:11,453 INFO L93 Difference]: Finished difference Result 346 states and 535 transitions. [2023-11-23 21:31:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:31:11,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 135 [2023-11-23 21:31:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:31:11,457 INFO L225 Difference]: With dead ends: 346 [2023-11-23 21:31:11,458 INFO L226 Difference]: Without dead ends: 210 [2023-11-23 21:31:11,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:31:11,461 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 100 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:31:11,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 333 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 75 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2023-11-23 21:31:11,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-23 21:31:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 186. [2023-11-23 21:31:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 122 states have (on average 1.3770491803278688) internal successors, (168), 122 states have internal predecessors, (168), 60 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-23 21:31:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 288 transitions. [2023-11-23 21:31:11,547 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 288 transitions. Word has length 135 [2023-11-23 21:31:11,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:31:11,548 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 288 transitions. [2023-11-23 21:31:11,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:31:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 288 transitions. [2023-11-23 21:31:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 21:31:11,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:31:11,552 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:31:11,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:31:11,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:11,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:31:11,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:31:11,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1309022070, now seen corresponding path program 1 times [2023-11-23 21:31:11,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:31:11,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954290374] [2023-11-23 21:31:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:11,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:31:11,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:31:11,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:31:11,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:31:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:12,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:31:12,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 410 proven. 48 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2023-11-23 21:31:14,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:31:15,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:31:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954290374] [2023-11-23 21:31:15,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954290374] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:31:15,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1762392157] [2023-11-23 21:31:15,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:31:15,326 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:31:15,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:31:15,333 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:31:15,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2332603e-db5c-47fe-a919-2283c8af70be/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-23 21:31:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:31:15,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:31:15,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:31:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-11-23 21:31:16,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:31:16,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1762392157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:31:16,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:31:16,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-11-23 21:31:16,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128125907] [2023-11-23 21:31:16,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:31:16,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:31:16,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:31:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:31:16,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:31:16,037 INFO L87 Difference]: Start difference. First operand 186 states and 288 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-23 21:31:18,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []