./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3d49bb1f74e012be1245469fa76b9503965ad20a85190ceb0369ab50675c511 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:44,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:44,603 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:16:44,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:44,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:44,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:44,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:44,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:44,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:44,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:44,653 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:44,654 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:44,654 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:44,656 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:44,656 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:44,657 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:44,657 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:44,658 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:44,658 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:44,659 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:44,659 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:44,660 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:44,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:44,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:44,662 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:44,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:44,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:44,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:44,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:44,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:44,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:44,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:44,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:44,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:44,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:44,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:44,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:44,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:44,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:44,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:44,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:44,670 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:44,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:44,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:44,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:44,672 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:44,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:44,673 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3d49bb1f74e012be1245469fa76b9503965ad20a85190ceb0369ab50675c511 [2023-11-23 21:16:45,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:45,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:45,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:45,046 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:45,046 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:45,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i [2023-11-23 21:16:48,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:48,343 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:48,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i [2023-11-23 21:16:48,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/79514ca19/62ac8f8984544b3d974d834af574ae6c/FLAG11c308cf2 [2023-11-23 21:16:48,368 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/79514ca19/62ac8f8984544b3d974d834af574ae6c [2023-11-23 21:16:48,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:48,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:48,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:48,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:48,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:48,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,382 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afcd9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48, skipping insertion in model container [2023-11-23 21:16:48,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,410 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:48,584 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i[913,926] [2023-11-23 21:16:48,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:48,684 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:48,701 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i[913,926] [2023-11-23 21:16:48,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:48,785 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:48,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48 WrapperNode [2023-11-23 21:16:48,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:48,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:48,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:48,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:48,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,862 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2023-11-23 21:16:48,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:48,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:48,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:48,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:48,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:48,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:48,909 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:48,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:48,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (1/1) ... [2023-11-23 21:16:48,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:48,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:48,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:49,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:49,100 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:49,103 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:49,560 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:49,864 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:49,864 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:49,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:49 BoogieIcfgContainer [2023-11-23 21:16:49,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:49,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:49,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:49,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:49,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:48" (1/3) ... [2023-11-23 21:16:49,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c115616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:49, skipping insertion in model container [2023-11-23 21:16:49,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:48" (2/3) ... [2023-11-23 21:16:49,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c115616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:49, skipping insertion in model container [2023-11-23 21:16:49,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:49" (3/3) ... [2023-11-23 21:16:49,881 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-30.i [2023-11-23 21:16:49,904 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:49,905 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:49,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:49,990 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;@b5d84fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:49,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:49,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:16:50,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:16:50,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:50,011 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:50,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:50,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:50,022 INFO L85 PathProgramCache]: Analyzing trace with hash 480952373, now seen corresponding path program 1 times [2023-11-23 21:16:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:50,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35306284] [2023-11-23 21:16:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:50,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:50,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:16:50,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345470463] [2023-11-23 21:16:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:50,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:16:50,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:50,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:16:50,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:16:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:50,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:16:50,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:16:50,619 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:16:50,621 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:16:50,623 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:16:50,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:16:50,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 21:16:50,850 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:16:50,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:16:50,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:16:50 BoogieIcfgContainer [2023-11-23 21:16:50,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:16:50,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:16:50,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:16:50,967 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:16:50,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:49" (3/4) ... [2023-11-23 21:16:50,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:16:50,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:16:50,973 INFO L158 Benchmark]: Toolchain (without parser) took 2600.28ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 78.4MB in the beginning and 103.2MB in the end (delta: -24.8MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,973 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 96.6MB in the end (delta: 218.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:16:50,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.36ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 65.4MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.41ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 61.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,976 INFO L158 Benchmark]: Boogie Preprocessor took 45.20ms. Allocated memory is still 121.6MB. Free memory was 61.7MB in the beginning and 59.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,977 INFO L158 Benchmark]: RCFGBuilder took 957.15ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 59.8MB in the beginning and 136.8MB in the end (delta: -77.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,977 INFO L158 Benchmark]: TraceAbstraction took 1096.21ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 104.3MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,978 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 182.5MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:16:50,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory was 96.8MB in the beginning and 96.6MB in the end (delta: 218.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.36ms. Allocated memory is still 121.6MB. Free memory was 78.2MB in the beginning and 65.4MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.41ms. Allocated memory is still 121.6MB. Free memory was 65.4MB in the beginning and 61.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.20ms. Allocated memory is still 121.6MB. Free memory was 61.7MB in the beginning and 59.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 957.15ms. Allocated memory was 121.6MB in the beginning and 182.5MB in the end (delta: 60.8MB). Free memory was 59.8MB in the beginning and 136.8MB in the end (delta: -77.0MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1096.21ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 104.3MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 182.5MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 103, overapproximation of shiftLeft at line 61, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 64; [L23] unsigned char var_1_2 = 0; [L24] signed short int var_1_5 = 8; [L25] signed short int var_1_6 = -32; [L26] unsigned char var_1_7 = 128; [L27] unsigned char var_1_8 = 10; [L28] unsigned char var_1_9 = 2; [L29] signed long int var_1_10 = 0; [L30] float var_1_11 = 32.5; [L31] float var_1_13 = 127.8; [L32] float var_1_14 = 999.25; [L33] float var_1_15 = 1000000000.5; [L34] float var_1_16 = 256.6; [L35] signed long int last_1_var_1_10 = 0; [L107] isInitial = 1 [L108] FCALL initially() [L109] COND TRUE 1 [L110] CALL updateLastVariables() [L100] last_1_var_1_10 = var_1_10 [L110] RET updateLastVariables() [L111] CALL updateVariables() [L72] var_1_2 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=8, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L75] var_1_5 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_5 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_5 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L77] CALL assume_abort_if_not(var_1_5 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_5 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L78] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=-32, var_1_7=128, var_1_8=10, var_1_9=2] [L79] var_1_6 = __VERIFIER_nondet_short() [L80] CALL assume_abort_if_not(var_1_6 >= -32768) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_6 >= -32768) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L81] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L82] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=128, var_1_8=10, var_1_9=2] [L83] var_1_7 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_8=10, var_1_9=2] [L85] CALL assume_abort_if_not(var_1_7 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=10, var_1_9=2] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_7 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=10, var_1_9=2] [L86] var_1_8 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_9=2] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_9=2] [L88] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=2] [L89] var_1_9 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0] [L91] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_13=639/5, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L92] var_1_13 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_14=3997/4, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L94] var_1_14 = __VERIFIER_nondet_float() [L95] CALL assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not((var_1_14 >= -461168.6018427382800e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2000000001/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L96] var_1_15 = __VERIFIER_nondet_float() [L97] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_16=1283/5, var_1_1=64, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L111] RET updateVariables() [L112] CALL step() [L39] signed long int stepLocal_0 = (last_1_var_1_10 / var_1_5) % var_1_6; [L40] COND FALSE !(\read(var_1_2)) [L45] var_1_1 = var_1_9 [L47] unsigned char stepLocal_2 = var_1_1; [L48] signed long int stepLocal_1 = var_1_1 + var_1_1; [L49] COND TRUE stepLocal_1 < var_1_6 [L50] COND FALSE !(\read(var_1_2)) [L55] var_1_10 = var_1_8 [L60] unsigned char stepLocal_4 = var_1_1; [L61] EXPR (var_1_9 / var_1_5) << var_1_6 [L61] signed long int stepLocal_3 = (var_1_9 / var_1_5) << var_1_6; [L62] COND TRUE stepLocal_4 > var_1_10 [L63] COND FALSE !(var_1_1 <= stepLocal_3) [L69] var_1_16 = var_1_15 [L112] RET step() [L113] CALL, EXPR property() [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR (var_1_9 / var_1_5) << var_1_6 [L103] EXPR (var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))) [L103] EXPR ((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15)))) [L103-L104] return (((var_1_2 ? ((last_1_var_1_10 > ((last_1_var_1_10 / var_1_5) % var_1_6)) ? (var_1_1 == ((unsigned char) ((((((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) > (var_1_9)) ? (((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8)))) : (var_1_9))))) : 1) : (var_1_1 == ((unsigned char) var_1_9))) && (((var_1_1 + var_1_1) < var_1_6) ? (var_1_2 ? ((var_1_5 > var_1_1) ? (var_1_10 == ((signed long int) var_1_1)) : 1) : (var_1_10 == ((signed long int) var_1_8))) : (var_1_10 == ((signed long int) var_1_9)))) && ((var_1_1 > var_1_10) ? ((var_1_1 <= ((var_1_9 / var_1_5) << var_1_6)) ? (var_1_11 == ((float) (var_1_13 + var_1_14))) : 1) : (var_1_11 == ((float) (((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))) - var_1_15))))) && (var_1_16 == ((float) var_1_15)) ; [L113] RET, EXPR property() [L113] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2, var_1_16=2, var_1_1=1, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=0, var_1_10=0, var_1_11=65/2, var_1_15=2, var_1_16=2, var_1_1=1, var_1_2=0, var_1_5=-1, var_1_6=3, var_1_7=0, var_1_8=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:16:51,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3d49bb1f74e012be1245469fa76b9503965ad20a85190ceb0369ab50675c511 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:53,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:53,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:16:53,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:53,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:54,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:54,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:54,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:54,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:54,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:54,012 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:54,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:54,014 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:54,015 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:54,016 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:54,016 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:54,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:54,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:54,019 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:54,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:54,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:54,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:54,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:54,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:54,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:16:54,023 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:16:54,023 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:16:54,024 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:54,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:54,025 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:54,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:54,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:16:54,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:54,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:54,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:54,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:54,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:54,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:54,029 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:16:54,030 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:16:54,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:54,030 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:54,031 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:54,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:54,031 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3d49bb1f74e012be1245469fa76b9503965ad20a85190ceb0369ab50675c511 [2023-11-23 21:16:54,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:54,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:54,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:54,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:54,468 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:54,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i [2023-11-23 21:16:57,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:57,747 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:57,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i [2023-11-23 21:16:57,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/5b8448c3e/37d5a225411e4f2b9cec41cf0f3bcd49/FLAGac1207078 [2023-11-23 21:16:57,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/data/5b8448c3e/37d5a225411e4f2b9cec41cf0f3bcd49 [2023-11-23 21:16:57,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:57,784 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:57,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:57,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:57,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:57,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49908a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:57, skipping insertion in model container [2023-11-23 21:16:57,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:57" (1/1) ... [2023-11-23 21:16:57,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:58,036 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i[913,926] [2023-11-23 21:16:58,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:58,101 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:58,116 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_7cb40063-f2eb-44f1-9263-f3feb4a6927b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-30.i[913,926] [2023-11-23 21:16:58,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:58,163 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:58,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58 WrapperNode [2023-11-23 21:16:58,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:58,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:58,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:58,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:58,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,185 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,215 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-23 21:16:58,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:58,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:58,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:58,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:58,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:58,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:58,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:58,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:58,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (1/1) ... [2023-11-23 21:16:58,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:58,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:58,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:58,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:16:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:58,425 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:58,434 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:59,960 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:17:00,021 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:17:00,024 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:17:00,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:00 BoogieIcfgContainer [2023-11-23 21:17:00,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:17:00,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:17:00,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:17:00,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:17:00,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:57" (1/3) ... [2023-11-23 21:17:00,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c5a7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:00, skipping insertion in model container [2023-11-23 21:17:00,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:58" (2/3) ... [2023-11-23 21:17:00,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c5a7b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:17:00, skipping insertion in model container [2023-11-23 21:17:00,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:17:00" (3/3) ... [2023-11-23 21:17:00,042 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-30.i [2023-11-23 21:17:00,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:17:00,063 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:17:00,134 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:17:00,144 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;@71254966, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:17:00,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:17:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:17:00,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:00,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:00,171 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:00,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:00,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash 76981722, now seen corresponding path program 1 times [2023-11-23 21:17:00,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:00,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153566199] [2023-11-23 21:17:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:00,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:00,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:00,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:00,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:17:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:00,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:17:00,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:17:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-23 21:17:00,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:17:00,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:17:00,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153566199] [2023-11-23 21:17:00,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1153566199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:00,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:00,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:17:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885585289] [2023-11-23 21:17:00,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:00,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:17:00,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:17:00,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:17:00,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:17:00,864 INFO L87 Difference]: Start difference. First operand has 48 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:17:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:01,299 INFO L93 Difference]: Finished difference Result 93 states and 163 transitions. [2023-11-23 21:17:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:17:01,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2023-11-23 21:17:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:01,332 INFO L225 Difference]: With dead ends: 93 [2023-11-23 21:17:01,332 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:17:01,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:17:01,341 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:01,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:17:01,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:17:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:17:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-23 21:17:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 69 transitions. [2023-11-23 21:17:01,412 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 69 transitions. Word has length 104 [2023-11-23 21:17:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:01,414 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 69 transitions. [2023-11-23 21:17:01,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:17:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 69 transitions. [2023-11-23 21:17:01,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 21:17:01,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:01,429 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:01,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:17:01,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:01,640 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:01,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:01,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2001550616, now seen corresponding path program 1 times [2023-11-23 21:17:01,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:17:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281348113] [2023-11-23 21:17:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:01,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:17:01,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:17:01,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:17:01,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb40063-f2eb-44f1-9263-f3feb4a6927b/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:17:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:02,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 21:17:02,054 INFO L285 TraceCheckSpWp]: Computing forward predicates...