./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh --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 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:17:25,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:17:25,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:17:25,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:17:25,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:17:25,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:17:25,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:17:25,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:17:25,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:17:25,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:17:25,503 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:17:25,503 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:17:25,504 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:17:25,504 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:17:25,504 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:17:25,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:17:25,505 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:17:25,506 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:17:25,506 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:17:25,507 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:17:25,507 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:17:25,508 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:17:25,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:17:25,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:17:25,509 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:17:25,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:17:25,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:17:25,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:17:25,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:17:25,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:17:25,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:17:25,512 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:17:25,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:17:25,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:17:25,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:17:25,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:17:25,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:17:25,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:17:25,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:17:25,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:17:25,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:17:25,514 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:17:25,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:17:25,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:17:25,514 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:17:25,515 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:17:25,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:17:25,515 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 [2023-12-02 17:17:25,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:17:25,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:17:25,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:17:25,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:17:25,747 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:17:25,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:28,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:17:28,658 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:17:28,658 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:28,665 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/58631e3fa/facff24ee4054edeb3bc55152273955a/FLAG266e6fea5 [2023-12-02 17:17:29,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/58631e3fa/facff24ee4054edeb3bc55152273955a [2023-12-02 17:17:29,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:17:29,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:17:29,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:29,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:17:29,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:17:29,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4f331b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29, skipping insertion in model container [2023-12-02 17:17:29,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:17:29,183 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-12-02 17:17:29,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:29,231 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:17:29,244 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-12-02 17:17:29,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:29,275 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:17:29,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29 WrapperNode [2023-12-02 17:17:29,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:29,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:29,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:17:29,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:17:29,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,319 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-12-02 17:17:29,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:29,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:17:29,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:17:29,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:17:29,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:17:29,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:17:29,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:17:29,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:17:29,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (1/1) ... [2023-12-02 17:17:29,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:17:29,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:17:29,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:17:29,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:17:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:17:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:17:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:17:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:17:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:17:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:17:29,482 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:17:29,484 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:17:29,692 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:17:29,798 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:17:29,798 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:17:29,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:29 BoogieIcfgContainer [2023-12-02 17:17:29,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:17:29,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:17:29,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:17:29,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:17:29,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:17:29" (1/3) ... [2023-12-02 17:17:29,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd774ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:29, skipping insertion in model container [2023-12-02 17:17:29,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:29" (2/3) ... [2023-12-02 17:17:29,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd774ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:29, skipping insertion in model container [2023-12-02 17:17:29,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:29" (3/3) ... [2023-12-02 17:17:29,807 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:29,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:17:29,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:17:29,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:17:29,880 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;@384df2e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:17:29,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:17:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 17:17:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 17:17:29,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:29,894 INFO L195 NwaCegarLoop]: trace histogram [14, 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] [2023-12-02 17:17:29,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:29,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash 110545832, now seen corresponding path program 1 times [2023-12-02 17:17:29,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209934371] [2023-12-02 17:17:29,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:29,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:17:30,149 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 17:17:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 17:17:30,262 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 17:17:30,264 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 17:17:30,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 17:17:30,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:17:30,271 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 17:17:30,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 17:17:30,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:17:30 BoogieIcfgContainer [2023-12-02 17:17:30,324 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 17:17:30,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 17:17:30,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 17:17:30,325 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 17:17:30,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:29" (3/4) ... [2023-12-02 17:17:30,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 17:17:30,329 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 17:17:30,330 INFO L158 Benchmark]: Toolchain (without parser) took 1295.32ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 95.3MB in the end (delta: 25.4MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,331 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:17:30,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.32ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 108.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 157.3MB. Free memory was 108.2MB in the beginning and 106.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,332 INFO L158 Benchmark]: Boogie Preprocessor took 25.61ms. Allocated memory is still 157.3MB. Free memory was 106.1MB in the beginning and 104.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,333 INFO L158 Benchmark]: RCFGBuilder took 453.10ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 124.7MB in the end (delta: -20.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,333 INFO L158 Benchmark]: TraceAbstraction took 522.83ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 95.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-02 17:17:30,334 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 157.3MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:17:30,337 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.32ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 108.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 157.3MB. Free memory was 108.2MB in the beginning and 106.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.61ms. Allocated memory is still 157.3MB. Free memory was 106.1MB in the beginning and 104.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.10ms. Allocated memory is still 157.3MB. Free memory was 104.4MB in the beginning and 124.7MB in the end (delta: -20.3MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 522.83ms. Allocated memory is still 157.3MB. Free memory was 124.7MB in the beginning and 95.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 157.3MB. Free memory is still 95.3MB. 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 someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] float var_1_12 = 2.4; [L29] float var_1_13 = 127.75; [L30] float var_1_14 = 0.0; [L31] float var_1_15 = 31.4; [L32] float var_1_16 = 256.75; [L33] float var_1_17 = 256.6; [L34] signed long int var_1_18 = 0; [L35] unsigned char var_1_19 = 32; [L36] unsigned char var_1_20 = 100; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L67] var_1_4 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L76] var_1_7 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L79] var_1_13 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L81] var_1_14 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L83] var_1_15 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] var_1_16 = __VERIFIER_nondet_float() [L86] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L87] var_1_20 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] CALL assume_abort_if_not(var_1_20 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_20 <= 254) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L102] RET updateVariables() [L103] CALL step() [L40] var_1_17 = var_1_14 [L41] var_1_19 = var_1_20 [L42] var_1_18 = var_1_19 [L43] unsigned char stepLocal_1 = var_1_19; [L44] signed long int stepLocal_0 = (var_1_18 * var_1_18) * (var_1_19 - var_1_19); [L45] COND FALSE !(stepLocal_0 >= 1u) [L52] var_1_8 = var_1_19 [L54] signed long int stepLocal_2 = var_1_8; [L55] COND FALSE !(var_1_19 > stepLocal_2) [L58] var_1_12 = (var_1_16 - (var_1_14 + var_1_15)) [L60] COND TRUE var_1_18 >= (8u * var_1_8) [L61] var_1_1 = (! (var_1_4 || (var_1_5 || var_1_6))) [L103] RET step() [L104] CALL, EXPR property() [L94-L95] return ((((((var_1_18 >= (8u * var_1_8)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && ((((var_1_18 * var_1_18) * (var_1_19 - var_1_19)) >= 1u) ? ((var_1_18 <= var_1_19) ? (var_1_8 == ((signed long int) var_1_19)) : (var_1_8 == ((signed long int) var_1_19))) : (var_1_8 == ((signed long int) var_1_19)))) && ((var_1_19 > var_1_8) ? (var_1_12 == ((float) (var_1_13 + ((var_1_14 - var_1_15) - var_1_16)))) : (var_1_12 == ((float) (var_1_16 - (var_1_14 + var_1_15)))))) && (var_1_17 == ((float) var_1_14))) && (var_1_18 == ((signed long int) var_1_19))) && (var_1_19 == ((unsigned char) var_1_20)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_14=261, var_1_17=261, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_14=261, var_1_17=261, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 14, 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=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 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 [2023-12-02 17:17:30,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh --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 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:17:32,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:17:32,393 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 17:17:32,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:17:32,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:17:32,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:17:32,426 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:17:32,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:17:32,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:17:32,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:17:32,429 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:17:32,429 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:17:32,430 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:17:32,430 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:17:32,431 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:17:32,431 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:17:32,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:17:32,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:17:32,433 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:17:32,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:17:32,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:17:32,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:17:32,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:17:32,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:17:32,437 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:17:32,437 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:17:32,437 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:17:32,438 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:17:32,438 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:17:32,439 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:17:32,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:17:32,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:17:32,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:17:32,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:17:32,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:17:32,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:17:32,441 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:17:32,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:17:32,442 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:17:32,442 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:17:32,442 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:17:32,442 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:17:32,443 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:17:32,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:17:32,443 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 [2023-12-02 17:17:32,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:17:32,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:17:32,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:17:32,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:17:32,749 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:17:32,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:35,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:17:35,742 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:17:35,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:35,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/45a7a5152/a6bf78f4d3e4435c976db0bc6433f79f/FLAG68797c18a [2023-12-02 17:17:35,766 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/data/45a7a5152/a6bf78f4d3e4435c976db0bc6433f79f [2023-12-02 17:17:35,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:17:35,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:17:35,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:35,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:17:35,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:17:35,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:35" (1/1) ... [2023-12-02 17:17:35,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2bbec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:35, skipping insertion in model container [2023-12-02 17:17:35,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:35" (1/1) ... [2023-12-02 17:17:35,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:17:35,945 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-12-02 17:17:35,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:36,000 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:17:36,010 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_5f81a051-ba70-4b6b-a487-b9798f2c3b59/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-12-02 17:17:36,030 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:36,048 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:17:36,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36 WrapperNode [2023-12-02 17:17:36,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:36,049 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:36,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:17:36,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:17:36,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,091 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-12-02 17:17:36,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:36,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:17:36,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:17:36,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:17:36,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,105 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,123 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:17:36,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:17:36,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:17:36,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:17:36,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (1/1) ... [2023-12-02 17:17:36,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:17:36,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:17:36,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:17:36,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:17:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:17:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:17:36,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:17:36,194 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:17:36,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:17:36,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:17:36,268 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:17:36,270 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:17:36,837 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:17:36,887 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:17:36,888 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:17:36,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:36 BoogieIcfgContainer [2023-12-02 17:17:36,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:17:36,890 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:17:36,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:17:36,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:17:36,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:17:35" (1/3) ... [2023-12-02 17:17:36,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e438800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:36, skipping insertion in model container [2023-12-02 17:17:36,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:36" (2/3) ... [2023-12-02 17:17:36,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e438800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:36, skipping insertion in model container [2023-12-02 17:17:36,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:36" (3/3) ... [2023-12-02 17:17:36,895 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-8.i [2023-12-02 17:17:36,911 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:17:36,911 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:17:36,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:17:36,957 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;@1780d5b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:17:36,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:17:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 17:17:36,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 17:17:36,971 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:36,971 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2023-12-02 17:17:36,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:36,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:36,977 INFO L85 PathProgramCache]: Analyzing trace with hash -899899240, now seen corresponding path program 1 times [2023-12-02 17:17:36,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:17:36,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520492350] [2023-12-02 17:17:36,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:36,988 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 [2023-12-02 17:17:36,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:17:36,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 17:17:36,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:37,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 17:17:37,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:17:37,375 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-02 17:17:37,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:17:37,376 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:17:37,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520492350] [2023-12-02 17:17:37,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1520492350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:37,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:37,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:17:37,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559280947] [2023-12-02 17:17:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:37,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:17:37,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:17:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:17:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:17:37,412 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:17:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:38,239 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-12-02 17:17:38,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:17:38,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-12-02 17:17:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:38,259 INFO L225 Difference]: With dead ends: 79 [2023-12-02 17:17:38,259 INFO L226 Difference]: Without dead ends: 39 [2023-12-02 17:17:38,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:17:38,264 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:38,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-02 17:17:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-02 17:17:38,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-02 17:17:38,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 17:17:38,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2023-12-02 17:17:38,295 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 56 transitions. Word has length 88 [2023-12-02 17:17:38,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:38,295 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 56 transitions. [2023-12-02 17:17:38,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 17:17:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2023-12-02 17:17:38,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 17:17:38,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:38,299 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2023-12-02 17:17:38,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:38,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:38,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:38,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:38,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1587462192, now seen corresponding path program 1 times [2023-12-02 17:17:38,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:17:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820500323] [2023-12-02 17:17:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:38,502 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 [2023-12-02 17:17:38,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:17:38,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 17:17:38,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:38,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 17:17:38,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:17:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-02 17:17:38,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:17:38,981 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:17:38,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820500323] [2023-12-02 17:17:38,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820500323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:38,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:38,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:17:38,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817341192] [2023-12-02 17:17:38,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:38,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:17:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:17:38,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:17:38,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:17:38,985 INFO L87 Difference]: Start difference. First operand 39 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 17:17:40,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:17:41,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 17:17:41,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:41,679 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2023-12-02 17:17:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:17:41,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-12-02 17:17:41,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:41,682 INFO L225 Difference]: With dead ends: 105 [2023-12-02 17:17:41,683 INFO L226 Difference]: Without dead ends: 67 [2023-12-02 17:17:41,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:17:41,685 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 52 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:41,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 179 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-02 17:17:41,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-02 17:17:41,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 39. [2023-12-02 17:17:41,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 17:17:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2023-12-02 17:17:41,697 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 88 [2023-12-02 17:17:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:41,699 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2023-12-02 17:17:41,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 17:17:41,700 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-12-02 17:17:41,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 17:17:41,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:41,702 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2023-12-02 17:17:41,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 17:17:41,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:41,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:41,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:41,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1585615150, now seen corresponding path program 1 times [2023-12-02 17:17:41,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:17:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979521323] [2023-12-02 17:17:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:41,907 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 [2023-12-02 17:17:41,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:17:41,908 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 17:17:41,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 17:17:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:42,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 17:17:42,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:18:08,289 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:19:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 270 proven. 72 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 17:19:50,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:21:19,404 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse21 ((_ zero_extend 24) c_~var_1_19~0)) (.cse20 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse4 (forall ((~var_1_7~0 (_ BitVec 8))) (not (= ((_ zero_extend 24) ~var_1_7~0) .cse20)))) (.cse3 (forall ((~var_1_7~0 (_ BitVec 8))) (= ((_ zero_extend 24) ~var_1_7~0) .cse20))) (.cse22 (bvsgt .cse21 c_~var_1_8~0))) (and (or (let ((.cse5 (= .cse20 (_ bv1 32))) (.cse18 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0) c_~var_1_16~0)) (.cse19 (and (= .cse21 ((_ zero_extend 24) c_~var_1_20~0)) (fp.eq c_~var_1_12~0 (fp.sub c_currentRoundingMode c_~var_1_16~0 (fp.add c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0))) (fp.eq c_~var_1_17~0 c_~var_1_14~0) (= .cse21 c_~var_1_18~0) (= c_~var_1_8~0 .cse21))) (.cse10 (= c_~var_1_4~0 (_ bv0 8))) (.cse11 (= c_~var_1_5~0 (_ bv0 8))) (.cse12 (= c_~var_1_6~0 (_ bv0 8)))) (let ((.cse13 (not .cse12)) (.cse14 (not .cse11)) (.cse15 (not .cse10)) (.cse6 (= .cse20 (_ bv0 32))) (.cse16 (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_12~0 (fp.add c_currentRoundingMode ~var_1_13~0 .cse18))) .cse19)) (.cse17 (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_12~0 (fp.add c_currentRoundingMode ~var_1_13~0 .cse18)))) .cse19)) (.cse8 (not .cse5))) (let ((.cse0 (bvuge c_~var_1_18~0 (bvmul (_ bv8 32) c_~var_1_8~0))) (.cse1 (or (and .cse10 .cse11 .cse12 .cse16 .cse17) .cse8)) (.cse2 (or .cse5 (and (or .cse13 .cse14 .cse15) .cse16 .cse17 .cse6)))) (and (or (and .cse0 .cse1 .cse2) .cse3) (or .cse4 (and (or .cse0 (let ((.cse7 (let ((.cse9 (and .cse16 .cse17))) (and (or .cse9 (and .cse10 .cse11 .cse12)) (or .cse13 .cse14 .cse15 .cse9))))) (and (or .cse5 (and (or (not .cse6) .cse7) (or .cse7 .cse6))) (or .cse8 .cse7)))) (or (not .cse0) (and .cse1 .cse2)))))))) .cse22) (or (and .cse4 .cse3) (not .cse22))))) is different from true [2023-12-02 17:23:48,750 WARN L293 SmtUtils]: Spent 1.08m on a formula simplification that was a NOOP. DAG size: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:26:45,974 WARN L293 SmtUtils]: Spent 1.75m on a formula simplification. DAG size of input: 51 DAG size of output: 52 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:29:12,041 WARN L293 SmtUtils]: Spent 57.26s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:30:10,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:30:10,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979521323] [2023-12-02 17:30:10,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979521323] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:30:10,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1073461980] [2023-12-02 17:30:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:30:10,809 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 17:30:10,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 17:30:10,811 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 17:30:10,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f81a051-ba70-4b6b-a487-b9798f2c3b59/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 17:30:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:30:11,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 17:30:11,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:32:36,976 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 2305843009213691390.0)) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 100000000000000000000.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven 4611686018427382800.0))) (or (and (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_15~0 .cse0) (fp.geq ~var_1_15~0 .cse1) (fp.geq ~var_1_14~0 .cse1) (fp.leq ~var_1_16~0 .cse2) (fp.geq ~var_1_16~0 .cse1) (not (fp.eq (fp.sub roundNearestTiesToEven ~var_1_16~0 (fp.add roundNearestTiesToEven ~var_1_14~0 ~var_1_15~0)) (fp.add roundNearestTiesToEven ~var_1_13~0 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_14~0 ~var_1_15~0) ~var_1_16~0)))) (fp.leq ~var_1_14~0 .cse2))) .cse3) (and .cse3 (exists ((~var_1_15~0 (_ FloatingPoint 8 24)) (~var_1_16~0 (_ FloatingPoint 8 24)) (~var_1_13~0 (_ FloatingPoint 8 24)) (~var_1_14~0 (_ FloatingPoint 8 24))) (and (fp.leq ~var_1_15~0 .cse0) (fp.geq ~var_1_15~0 .cse1) (fp.geq ~var_1_14~0 .cse1) (fp.leq ~var_1_16~0 .cse2) (fp.geq ~var_1_16~0 .cse1) (fp.leq ~var_1_14~0 .cse2) (fp.eq (fp.sub roundNearestTiesToEven ~var_1_16~0 (fp.add roundNearestTiesToEven ~var_1_14~0 ~var_1_15~0)) (fp.add roundNearestTiesToEven ~var_1_13~0 (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven ~var_1_14~0 ~var_1_15~0) ~var_1_16~0)))))))) is different from false [2023-12-02 17:32:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 270 proven. 72 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 17:32:36,986 INFO L327 TraceCheckSpWp]: Computing backward predicates...