./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX --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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:21,102 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:21,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:12:21,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:21,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:21,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:21,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:21,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:21,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:21,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:21,269 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:21,270 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:21,270 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:21,271 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:12:21,271 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:21,272 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:21,273 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:12:21,273 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:12:21,274 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:21,275 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:12:21,275 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:12:21,276 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:12:21,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:21,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:21,278 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:21,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:12:21,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:21,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:21,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:21,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:21,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:21,282 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:21,282 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:21,282 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:21,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:21,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:21,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:21,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:21,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:21,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:21,284 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:12:21,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:12:21,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:21,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:21,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:21,286 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_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2023-11-12 00:12:21,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:21,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:21,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:21,663 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:21,664 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:21,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:24,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:24,991 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:24,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:25,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/4a5653bbd/597fa3fdfb7f43999dcebdfb3e86ffb2/FLAGf6138e8a7 [2023-11-12 00:12:25,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/4a5653bbd/597fa3fdfb7f43999dcebdfb3e86ffb2 [2023-11-12 00:12:25,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:25,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:25,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:25,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:25,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:25,078 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b2e8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25, skipping insertion in model container [2023-11-12 00:12:25,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:25,292 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_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 00:12:25,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:25,348 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:25,359 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_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 00:12:25,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:25,401 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:25,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25 WrapperNode [2023-11-12 00:12:25,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:25,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:25,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:25,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:25,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,462 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 134 [2023-11-12 00:12:25,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:25,464 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:25,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:25,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:25,475 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:25,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:25,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:25,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:25,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (1/1) ... [2023-11-12 00:12:25,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:25,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:25,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:25,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:25,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:12:25,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:25,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:25,665 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:25,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:26,057 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:26,388 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:26,388 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:12:26,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:26 BoogieIcfgContainer [2023-11-12 00:12:26,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:26,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:26,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:26,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:26,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:25" (1/3) ... [2023-11-12 00:12:26,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fdaf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:26, skipping insertion in model container [2023-11-12 00:12:26,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:25" (2/3) ... [2023-11-12 00:12:26,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fdaf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:26, skipping insertion in model container [2023-11-12 00:12:26,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:26" (3/3) ... [2023-11-12 00:12:26,405 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:26,426 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:26,426 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:26,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:26,495 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;@1f55e8b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:26,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:12:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:12:26,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:26,522 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:26,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:26,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash 370986968, now seen corresponding path program 1 times [2023-11-12 00:12:26,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:12:26,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818752794] [2023-11-12 00:12:26,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:12:26,751 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:12:26,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1098579370] [2023-11-12 00:12:26,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:26,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:12:26,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:26,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:12:26,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:12:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:12:27,523 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:12:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:12:27,649 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:12:27,653 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:12:27,655 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:12:27,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:27,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:12:27,869 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:12:27,877 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:12:27,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:12:27 BoogieIcfgContainer [2023-11-12 00:12:27,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:12:27,990 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:12:27,990 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:12:27,990 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:12:27,991 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:26" (3/4) ... [2023-11-12 00:12:27,996 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:12:27,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:12:27,999 INFO L158 Benchmark]: Toolchain (without parser) took 2929.30ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 44.6MB in the end (delta: 94.5MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,000 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:28,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.91ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 126.4MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.53ms. Allocated memory is still 167.8MB. Free memory was 126.4MB in the beginning and 123.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,009 INFO L158 Benchmark]: Boogie Preprocessor took 36.84ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 121.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,010 INFO L158 Benchmark]: RCFGBuilder took 890.08ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 78.2MB in the end (delta: 43.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,012 INFO L158 Benchmark]: TraceAbstraction took 1593.51ms. Allocated memory is still 167.8MB. Free memory was 77.2MB in the beginning and 44.8MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-12 00:12:28,012 INFO L158 Benchmark]: Witness Printer took 7.92ms. Allocated memory is still 167.8MB. Free memory was 44.8MB in the beginning and 44.6MB in the end (delta: 201.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:12:28,021 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.91ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 126.4MB in the end (delta: 12.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.53ms. Allocated memory is still 167.8MB. Free memory was 126.4MB in the beginning and 123.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.84ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 121.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 890.08ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 78.2MB in the end (delta: 43.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1593.51ms. Allocated memory is still 167.8MB. Free memory was 77.2MB in the beginning and 44.8MB in the end (delta: 32.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 7.92ms. Allocated memory is still 167.8MB. Free memory was 44.8MB in the beginning and 44.6MB in the end (delta: 201.4kB). 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 54, overapproximation of bitwiseOr at line 48. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 8; [L23] unsigned short int var_1_2 = 59049; [L24] unsigned short int var_1_3 = 100; [L25] unsigned char var_1_6 = 16; [L26] signed char var_1_7 = -25; [L27] signed char var_1_8 = 16; [L28] signed char var_1_9 = 25; [L29] signed char var_1_10 = -10; [L30] signed char var_1_11 = 0; [L31] float var_1_12 = 25.1; [L32] unsigned long int var_1_13 = 2531521428; [L33] signed long int var_1_14 = -128; [L34] signed long int var_1_15 = 256; [L35] signed short int var_1_16 = -16; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_2 >= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_2 >= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L65] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=100, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L66] var_1_3 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L68] CALL assume_abort_if_not(var_1_3 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_3 <= 32767) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=16, var_1_7=-25, var_1_8=16, var_1_9=25] [L69] var_1_6 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L71] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=16, var_1_9=25] [L72] var_1_8 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L74] CALL assume_abort_if_not(var_1_8 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 <= 63) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=25] [L75] var_1_9 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 31) VAL [\old(cond)=1, isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 31) VAL [isInitial=1, var_1_10=-10, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L78] var_1_10 = __VERIFIER_nondet_char() [L79] CALL assume_abort_if_not(var_1_10 >= -63) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 >= -63) VAL [isInitial=1, var_1_10=4, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_10 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 <= 63) VAL [isInitial=1, var_1_10=4, var_1_11=0, var_1_12=251/10, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2531521428, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L83] var_1_13 = __VERIFIER_nondet_ulong() [L84] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L85] CALL assume_abort_if_not(var_1_13 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_13 <= 4294967295) VAL [isInitial=1, var_1_10=4, var_1_11=0, var_1_12=2, var_1_13=2147483647, var_1_14=-128, var_1_15=256, var_1_16=-16, var_1_1=8, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=-25, var_1_8=6, var_1_9=0] [L98] RET updateVariables() [L99] CALL step() [L39] var_1_14 = var_1_8 [L40] var_1_16 = var_1_14 [L41] signed long int stepLocal_0 = (((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)); [L42] COND FALSE !(var_1_2 <= stepLocal_0) [L45] var_1_7 = var_1_10 [L47] var_1_15 = var_1_16 [L48] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) [L48] COND FALSE !(((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) [L51] var_1_1 = var_1_6 [L53] unsigned char stepLocal_1 = var_1_1; [L54] COND TRUE 2.75f > var_1_12 [L55] var_1_11 = (var_1_10 + var_1_8) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR (var_1_2 - var_1_3) ^ (var_1_15 * var_1_16) [L90-L91] return ((((((((var_1_2 - var_1_3) ^ (var_1_15 * var_1_16)) <= -64) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_2 <= ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) ? (var_1_7 == ((signed char) ((var_1_8 - (1 + var_1_9)) + var_1_10))) : (var_1_7 == ((signed char) var_1_10)))) && ((2.75f > var_1_12) ? (var_1_11 == ((signed char) (var_1_10 + var_1_8))) : (((var_1_13 - ((((var_1_14) > (var_1_8)) ? (var_1_14) : (var_1_8)))) > var_1_1) ? (var_1_11 == ((signed char) ((((((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) < (var_1_10)) ? (((((var_1_8) < ((1 + 5))) ? (var_1_8) : ((1 + 5))))) : (var_1_10))))) : 1))) && (var_1_14 == ((signed long int) var_1_8))) && (var_1_15 == ((signed long int) var_1_16))) && (var_1_16 == ((signed short int) var_1_14)) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=4, var_1_11=10, var_1_12=2, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=4, var_1_8=6, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=4, var_1_11=10, var_1_12=2, var_1_13=2147483647, var_1_14=6, var_1_15=6, var_1_16=6, var_1_1=0, var_1_2=32767, var_1_3=32767, var_1_6=0, var_1_7=4, var_1_8=6, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 15, 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 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 [2023-11-12 00:12:28,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX --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 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:12:30,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:12:30,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:12:30,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:12:30,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:12:30,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:12:30,953 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:12:30,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:12:30,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:12:30,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:12:30,961 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:12:30,961 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:12:30,962 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:12:30,963 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:12:30,964 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:12:30,965 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:12:30,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:12:30,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:12:30,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:12:30,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:12:30,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:12:30,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:12:30,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:12:30,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:12:30,970 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:12:30,970 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:12:30,971 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:12:30,971 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:12:30,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:12:30,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:12:30,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:12:30,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:12:30,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:12:30,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:30,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:12:30,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:12:30,976 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:12:30,976 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:12:30,976 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:12:30,977 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:12:30,977 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:12:30,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:12:30,978 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_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 705f1434cf57fe07ebfc06c0b1211b5e86887658700ddfe642f1846035ec4c01 [2023-11-12 00:12:31,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:12:31,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:12:31,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:12:31,448 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:12:31,449 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:12:31,450 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:34,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:12:34,873 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:12:34,874 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:34,885 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/179304025/676a7d792f534f438369a2329722c2a3/FLAG6787b05d4 [2023-11-12 00:12:34,899 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/data/179304025/676a7d792f534f438369a2329722c2a3 [2023-11-12 00:12:34,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:12:34,904 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:12:34,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:34,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:12:34,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:12:34,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:34" (1/1) ... [2023-11-12 00:12:34,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f66db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:34, skipping insertion in model container [2023-11-12 00:12:34,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:12:34" (1/1) ... [2023-11-12 00:12:34,954 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:12:35,109 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_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 00:12:35,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:35,186 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:12:35,206 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_aade2a6d-f772-4079-a1df-780f7c71bb26/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-37.i[913,926] [2023-11-12 00:12:35,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:12:35,289 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:12:35,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35 WrapperNode [2023-11-12 00:12:35,290 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:12:35,291 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:35,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:12:35,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:12:35,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,359 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-12 00:12:35,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:12:35,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:12:35,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:12:35,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:12:35,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:12:35,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:12:35,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:12:35,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:12:35,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (1/1) ... [2023-11-12 00:12:35,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:12:35,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:35,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:12:35,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:12:35,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:12:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:12:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:12:35,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:12:35,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:12:35,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:12:35,692 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:12:35,694 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:12:36,076 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:12:36,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:12:36,085 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:12:36,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:36 BoogieIcfgContainer [2023-11-12 00:12:36,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:12:36,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:12:36,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:12:36,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:12:36,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:12:34" (1/3) ... [2023-11-12 00:12:36,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1978e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:36, skipping insertion in model container [2023-11-12 00:12:36,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:12:35" (2/3) ... [2023-11-12 00:12:36,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1978e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:12:36, skipping insertion in model container [2023-11-12 00:12:36,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:12:36" (3/3) ... [2023-11-12 00:12:36,105 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-37.i [2023-11-12 00:12:36,128 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:12:36,129 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:12:36,205 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:12:36,213 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;@266e1db2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:12:36,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:12:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:12:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 00:12:36,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:36,237 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:36,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:36,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:36,249 INFO L85 PathProgramCache]: Analyzing trace with hash 893252525, now seen corresponding path program 1 times [2023-11-12 00:12:36,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:36,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [187573098] [2023-11-12 00:12:36,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:36,268 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 [2023-11-12 00:12:36,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:36,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:12:36,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:12:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:36,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:12:36,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2023-11-12 00:12:36,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:12:36,647 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [187573098] [2023-11-12 00:12:36,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [187573098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:12:36,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:12:36,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:12:36,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818261949] [2023-11-12 00:12:36,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:12:36,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:12:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:36,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:12:36,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:12:36,733 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 00:12:36,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:36,776 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2023-11-12 00:12:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:12:36,778 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2023-11-12 00:12:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:36,789 INFO L225 Difference]: With dead ends: 89 [2023-11-12 00:12:36,789 INFO L226 Difference]: Without dead ends: 44 [2023-11-12 00:12:36,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:12:36,798 INFO L413 NwaCegarLoop]: 62 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, 62 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 [2023-11-12 00:12:36,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:12:36,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-12 00:12:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-12 00:12:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:12:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2023-11-12 00:12:36,858 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97 [2023-11-12 00:12:36,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:36,859 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2023-11-12 00:12:36,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 00:12:36,860 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2023-11-12 00:12:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 00:12:36,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:36,867 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:36,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:12:37,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:12:37,082 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:37,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:37,083 INFO L85 PathProgramCache]: Analyzing trace with hash -664290645, now seen corresponding path program 1 times [2023-11-12 00:12:37,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:37,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533594554] [2023-11-12 00:12:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:37,085 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 [2023-11-12 00:12:37,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:37,086 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:12:37,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:12:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:37,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:12:37,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:38,001 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-12 00:12:38,002 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:38,354 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:38,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533594554] [2023-11-12 00:12:38,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533594554] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:38,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915290830] [2023-11-12 00:12:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:38,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:12:38,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:12:38,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:12:38,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:12:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:38,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 00:12:38,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-12 00:12:39,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:39,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915290830] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:39,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330323200] [2023-11-12 00:12:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:39,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:12:39,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:12:39,387 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:12:39,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:12:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:39,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-12 00:12:39,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 200 proven. 63 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-12 00:12:39,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:40,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330323200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:40,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 00:12:40,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 9 [2023-11-12 00:12:40,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527932832] [2023-11-12 00:12:40,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 00:12:40,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 00:12:40,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:12:40,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 00:12:40,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-12 00:12:40,114 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:12:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:12:40,764 INFO L93 Difference]: Finished difference Result 97 states and 131 transitions. [2023-11-12 00:12:40,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 00:12:40,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 97 [2023-11-12 00:12:40,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:12:40,768 INFO L225 Difference]: With dead ends: 97 [2023-11-12 00:12:40,768 INFO L226 Difference]: Without dead ends: 56 [2023-11-12 00:12:40,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 442 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:12:40,771 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:12:40,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 141 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-12 00:12:40,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-12 00:12:40,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2023-11-12 00:12:40,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:12:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2023-11-12 00:12:40,789 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 97 [2023-11-12 00:12:40,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:12:40,792 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2023-11-12 00:12:40,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:12:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2023-11-12 00:12:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-12 00:12:40,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:12:40,795 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:12:40,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:41,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:41,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:12:41,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt [2023-11-12 00:12:41,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:12:41,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:12:41,411 INFO L85 PathProgramCache]: Analyzing trace with hash 15767725, now seen corresponding path program 1 times [2023-11-12 00:12:41,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:12:41,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947453201] [2023-11-12 00:12:41,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:41,412 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 [2023-11-12 00:12:41,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:12:41,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:12:41,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/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 (6)] Waiting until timeout for monitored process [2023-11-12 00:12:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:41,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 00:12:41,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:12:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 222 proven. 102 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-12 00:12:42,607 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:12:47,976 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:12:47,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947453201] [2023-11-12 00:12:47,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947453201] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:12:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1983606839] [2023-11-12 00:12:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:12:47,979 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:12:47,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:12:47,987 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:12:47,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aade2a6d-f772-4079-a1df-780f7c71bb26/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-12 00:12:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:12:48,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-12 00:12:48,338 INFO L285 TraceCheckSpWp]: Computing forward predicates...