./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ --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 5c538b08a3d83aa65ce7ffeb36d6290ee4fcb7724fc63e5e0592ab91abf7ec2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:33,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:33,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:15:33,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:33,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:33,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:33,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:33,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:33,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:33,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:33,583 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:33,583 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:33,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:33,586 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:15:33,587 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:33,587 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:33,588 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:15:33,588 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:15:33,589 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:33,589 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:15:33,590 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:15:33,592 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:15:33,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:33,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:15:33,594 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:33,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:33,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:33,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:33,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:15:33,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:33,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:15:33,599 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:33,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:15:33,600 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:33,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:33,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:33,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:33,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:33,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:33,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:15:33,602 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:15:33,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:15:33,603 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:15:33,603 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:33,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:33,604 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_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c538b08a3d83aa65ce7ffeb36d6290ee4fcb7724fc63e5e0592ab91abf7ec2d [2023-11-19 05:15:34,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:34,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:34,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:34,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:34,091 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:34,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:37,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:37,780 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:37,780 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:37,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/df4dd6bd6/d6ff3a6f8a4942c28154b72da021f541/FLAG813f63172 [2023-11-19 05:15:37,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/df4dd6bd6/d6ff3a6f8a4942c28154b72da021f541 [2023-11-19 05:15:37,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:37,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:37,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:37,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:37,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:37,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:37" (1/1) ... [2023-11-19 05:15:37,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14599b9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:37, skipping insertion in model container [2023-11-19 05:15:37,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:37" (1/1) ... [2023-11-19 05:15:37,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:38,081 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_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i[913,926] [2023-11-19 05:15:38,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:38,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:38,163 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_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i[913,926] [2023-11-19 05:15:38,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:38,216 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:38,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38 WrapperNode [2023-11-19 05:15:38,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:38,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:38,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:38,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:38,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,280 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-19 05:15:38,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:38,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:38,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:38,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:38,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:38,323 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:38,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:38,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:38,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (1/1) ... [2023-11-19 05:15:38,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:38,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:38,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:38,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:38,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:38,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:15:38,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:38,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:38,591 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:38,600 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:39,125 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:39,398 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:39,399 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:15:39,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:39 BoogieIcfgContainer [2023-11-19 05:15:39,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:39,407 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:39,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:39,411 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:39,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:37" (1/3) ... [2023-11-19 05:15:39,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa316a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:39, skipping insertion in model container [2023-11-19 05:15:39,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:38" (2/3) ... [2023-11-19 05:15:39,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa316a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:39, skipping insertion in model container [2023-11-19 05:15:39,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:39" (3/3) ... [2023-11-19 05:15:39,418 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:39,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:39,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:39,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:39,502 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;@67c53453, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:39,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:39,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:15:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 05:15:39,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:39,524 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:39,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:39,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash 462676582, now seen corresponding path program 1 times [2023-11-19 05:15:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370966454] [2023-11-19 05:15:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:39,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:15:39,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:15:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:15:40,262 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:15:40,264 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:15:40,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:15:40,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:15:40,273 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:15:40,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:15:40,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:15:40 BoogieIcfgContainer [2023-11-19 05:15:40,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:15:40,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:15:40,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:15:40,438 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:15:40,438 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:39" (3/4) ... [2023-11-19 05:15:40,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:15:40,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:15:40,445 INFO L158 Benchmark]: Toolchain (without parser) took 2623.01ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 71.5MB in the beginning and 155.5MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:40,445 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 88.1MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:40,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.20ms. Allocated memory is still 115.3MB. Free memory was 71.5MB in the beginning and 59.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:15:40,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.08ms. Allocated memory is still 115.3MB. Free memory was 59.3MB in the beginning and 56.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:15:40,447 INFO L158 Benchmark]: Boogie Preprocessor took 40.50ms. Allocated memory is still 115.3MB. Free memory was 56.8MB in the beginning and 55.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:40,448 INFO L158 Benchmark]: RCFGBuilder took 1080.52ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 55.2MB in the beginning and 130.6MB in the end (delta: -75.4MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-19 05:15:40,449 INFO L158 Benchmark]: TraceAbstraction took 1030.30ms. Allocated memory is still 186.6MB. Free memory was 130.4MB in the beginning and 155.5MB in the end (delta: -25.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-19 05:15:40,449 INFO L158 Benchmark]: Witness Printer took 6.16ms. Allocated memory is still 186.6MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:40,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory was 88.3MB in the beginning and 88.1MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.20ms. Allocated memory is still 115.3MB. Free memory was 71.5MB in the beginning and 59.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.08ms. Allocated memory is still 115.3MB. Free memory was 59.3MB in the beginning and 56.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.50ms. Allocated memory is still 115.3MB. Free memory was 56.8MB in the beginning and 55.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1080.52ms. Allocated memory was 115.3MB in the beginning and 186.6MB in the end (delta: 71.3MB). Free memory was 55.2MB in the beginning and 130.6MB in the end (delta: -75.4MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1030.30ms. Allocated memory is still 186.6MB. Free memory was 130.4MB in the beginning and 155.5MB in the end (delta: -25.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 6.16ms. Allocated memory is still 186.6MB. Free memory is still 155.5MB. 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 43, overapproximation of bitwiseOr at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 16; [L23] signed short int var_1_7 = 32; [L24] signed short int var_1_8 = 20113; [L25] signed short int var_1_9 = 100; [L26] signed char var_1_10 = 100; [L27] signed char var_1_11 = -1; [L28] signed char var_1_12 = 16; [L29] unsigned char var_1_13 = 1; [L30] unsigned char var_1_15 = 0; [L31] unsigned char var_1_16 = 1; [L32] unsigned short int var_1_18 = 10; [L33] unsigned short int var_1_19 = 256; [L34] float var_1_20 = 32.5; [L35] float var_1_21 = 127.4; [L36] signed short int var_1_22 = 128; [L104] isInitial = 1 [L105] FCALL initially() [L106] COND TRUE 1 [L107] FCALL updateLastVariables() [L108] CALL updateVariables() [L70] var_1_7 = __VERIFIER_nondet_short() [L71] CALL assume_abort_if_not(var_1_7 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 >= -1) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=20113, var_1_9=100] [L72] CALL assume_abort_if_not(var_1_7 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=20113, var_1_9=100] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_7 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=20113, var_1_9=100] [L73] var_1_8 = __VERIFIER_nondet_short() [L74] CALL assume_abort_if_not(var_1_8 >= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=100] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 >= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=100] [L75] CALL assume_abort_if_not(var_1_8 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=100] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 <= 32766) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=100] [L76] var_1_9 = __VERIFIER_nondet_short() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L78] CALL assume_abort_if_not(var_1_9 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 16383) VAL [isInitial=1, var_1_10=100, var_1_11=-1, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L79] var_1_11 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_11 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 >= -63) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L81] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=16, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L82] var_1_12 = __VERIFIER_nondet_char() [L83] CALL assume_abort_if_not(var_1_12 >= -31) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_12 >= -31) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L84] CALL assume_abort_if_not(var_1_12 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_12 <= 32) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=0, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L87] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L88] var_1_16 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_16 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_16 >= 1) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L90] CALL assume_abort_if_not(var_1_16 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_16 <= 1) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=256, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L91] var_1_19 = __VERIFIER_nondet_ushort() [L92] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L93] CALL assume_abort_if_not(var_1_19 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_19 <= 65534) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=637/5, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L94] var_1_21 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=98307, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_21 >= -922337.2036854765600e+13F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854765600e+12F && var_1_21 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=100, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=10, var_1_19=32766, var_1_1=16, var_1_20=65/2, var_1_21=98307, var_1_22=128, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L108] RET updateVariables() [L109] CALL step() [L40] var_1_18 = var_1_19 [L41] var_1_20 = var_1_21 [L42] var_1_22 = var_1_12 [L43] COND FALSE !(127.5f > var_1_20) [L46] var_1_13 = ((var_1_20 >= var_1_20) || var_1_15) [L48] COND TRUE var_1_18 == var_1_7 [L49] var_1_10 = (var_1_11 + (var_1_12 + -25)) [L57] COND TRUE \read(var_1_13) [L58] COND TRUE var_1_10 > var_1_22 [L59] COND TRUE \read(var_1_13) [L60] var_1_1 = (var_1_7 - (var_1_8 - var_1_9)) [L109] RET step() [L110] CALL, EXPR property() [L100] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) [L100] EXPR (var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1) [L100] EXPR (var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1)) [L100-L101] return (((((var_1_13 ? ((var_1_10 > var_1_22) ? (var_1_13 ? (var_1_1 == ((signed short int) (var_1_7 - (var_1_8 - var_1_9)))) : (var_1_1 == ((signed short int) var_1_18))) : (var_1_1 == ((signed short int) 8))) : 1) && ((var_1_18 == var_1_7) ? (var_1_10 == ((signed char) (var_1_11 + (var_1_12 + -25)))) : ((((32 * -25) | var_1_22) >= var_1_11) ? (var_1_13 ? (var_1_10 == ((signed char) var_1_12)) : 1) : 1))) && ((127.5f > var_1_20) ? (var_1_13 == ((unsigned char) (var_1_15 && var_1_16))) : (var_1_13 == ((unsigned char) ((var_1_20 >= var_1_20) || var_1_15))))) && (var_1_18 == ((unsigned short int) var_1_19))) && (var_1_20 == ((float) var_1_21))) && (var_1_22 == ((signed short int) var_1_12)) ; [L110] RET, EXPR property() [L110] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=38, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=32766, var_1_19=32766, var_1_1=32766, var_1_20=98307, var_1_21=98307, var_1_22=0, var_1_7=32766, var_1_8=16383, var_1_9=16383] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=38, var_1_11=63, var_1_12=0, var_1_13=1, var_1_15=1, var_1_16=1, var_1_18=32766, var_1_19=32766, var_1_1=32766, var_1_20=98307, var_1_21=98307, var_1_22=0, var_1_7=32766, var_1_8=16383, var_1_9=16383] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 17, 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=35occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 05:15:40,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ --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 5c538b08a3d83aa65ce7ffeb36d6290ee4fcb7724fc63e5e0592ab91abf7ec2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:43,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:43,516 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:15:43,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:43,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:43,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:43,587 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:43,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:43,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:43,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:43,596 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:43,597 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:43,597 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:43,600 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:43,600 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:43,601 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:43,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:43,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:15:43,603 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:15:43,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:15:43,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:43,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:15:43,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:43,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:15:43,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:43,607 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:15:43,607 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:15:43,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:15:43,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:15:43,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:43,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:43,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:15:43,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:43,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:43,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:43,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:43,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:15:43,613 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:15:43,613 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:43,615 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:15:43,615 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:43,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:43,626 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_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c538b08a3d83aa65ce7ffeb36d6290ee4fcb7724fc63e5e0592ab91abf7ec2d [2023-11-19 05:15:44,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:44,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:44,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:44,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:44,175 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:44,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:47,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:47,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:47,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:47,847 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/26aea08b8/a8eb6643a68a48cdb0c9155799c93d9a/FLAG3cae4fe60 [2023-11-19 05:15:47,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/data/26aea08b8/a8eb6643a68a48cdb0c9155799c93d9a [2023-11-19 05:15:47,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:47,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:47,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:47,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:47,888 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:47,889 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:47" (1/1) ... [2023-11-19 05:15:47,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e6347a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:47, skipping insertion in model container [2023-11-19 05:15:47,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:47" (1/1) ... [2023-11-19 05:15:47,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:48,157 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_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i[913,926] [2023-11-19 05:15:48,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:48,272 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:48,292 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_51eaa313-739f-4ab7-973a-3c90374b9827/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-97.i[913,926] [2023-11-19 05:15:48,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:48,349 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:48,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48 WrapperNode [2023-11-19 05:15:48,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:48,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:48,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:48,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:48,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,440 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 110 [2023-11-19 05:15:48,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:48,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:48,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:48,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:48,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:48,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:48,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:48,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:48,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (1/1) ... [2023-11-19 05:15:48,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:48,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:48,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:15:48,616 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:48,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:48,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:48,714 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:48,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:49,162 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:15:49,180 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:15:49,180 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:15:49,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:49 BoogieIcfgContainer [2023-11-19 05:15:49,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:15:49,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:15:49,191 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:15:49,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:15:49,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:47" (1/3) ... [2023-11-19 05:15:49,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bfb50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:49, skipping insertion in model container [2023-11-19 05:15:49,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:48" (2/3) ... [2023-11-19 05:15:49,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bfb50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:15:49, skipping insertion in model container [2023-11-19 05:15:49,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:15:49" (3/3) ... [2023-11-19 05:15:49,201 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-97.i [2023-11-19 05:15:49,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:15:49,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:15:49,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:15:49,311 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;@7310b60f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:15:49,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:15:49,317 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:15:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 05:15:49,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:49,340 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:49,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:49,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1977812467, now seen corresponding path program 1 times [2023-11-19 05:15:49,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:49,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051467277] [2023-11-19 05:15:49,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:49,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:49,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:49,378 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:49,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:15:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:49,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:15:49,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-19 05:15:49,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:49,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:49,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051467277] [2023-11-19 05:15:49,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051467277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:49,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:15:49,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:15:49,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211150077] [2023-11-19 05:15:49,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:49,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:15:49,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:15:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:15:49,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:15:49,841 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:15:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:49,877 INFO L93 Difference]: Finished difference Result 97 states and 167 transitions. [2023-11-19 05:15:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:15:49,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 106 [2023-11-19 05:15:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:49,888 INFO L225 Difference]: With dead ends: 97 [2023-11-19 05:15:49,889 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 05:15:49,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:15:49,897 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:49,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:15:49,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 05:15:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 05:15:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 05:15:49,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 71 transitions. [2023-11-19 05:15:49,948 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 71 transitions. Word has length 106 [2023-11-19 05:15:49,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:49,949 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 71 transitions. [2023-11-19 05:15:49,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:15:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2023-11-19 05:15:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 05:15:49,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:49,953 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:49,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:50,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:50,158 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:15:50,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:50,159 INFO L85 PathProgramCache]: Analyzing trace with hash -846381169, now seen corresponding path program 1 times [2023-11-19 05:15:50,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:15:50,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108584397] [2023-11-19 05:15:50,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:50,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:15:50,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:15:50,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:15:50,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:15:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:50,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 05:15:50,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 302 proven. 27 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-19 05:15:50,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-19 05:15:51,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:15:51,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108584397] [2023-11-19 05:15:51,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108584397] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:51,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [592717919] [2023-11-19 05:15:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:51,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:51,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:15:51,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:15:51,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 05:15:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:51,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 05:15:51,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:52,172 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 294 proven. 36 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-19 05:15:52,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:15:52,493 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 63 proven. 30 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2023-11-19 05:15:52,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [592717919] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:15:52,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585601500] [2023-11-19 05:15:52,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:52,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:52,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:52,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:52,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eaa313-739f-4ab7-973a-3c90374b9827/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:15:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:52,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-19 05:15:52,626 INFO L285 TraceCheckSpWp]: Computing forward predicates...