./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91 --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 f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:18:54,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:18:54,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:18:54,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:18:54,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:18:54,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:18:54,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:18:54,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:18:54,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:18:54,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:18:54,993 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:18:54,993 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:18:54,994 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:18:54,995 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:18:54,995 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:18:54,996 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:18:54,996 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:18:54,997 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:18:54,997 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:18:54,998 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:18:54,998 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:18:54,999 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:18:55,000 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:18:55,000 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:18:55,001 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:18:55,001 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:18:55,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:18:55,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:18:55,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:18:55,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:18:55,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:18:55,004 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:18:55,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:18:55,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:18:55,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:18:55,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:18:55,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:18:55,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:55,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:18:55,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:18:55,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:18:55,007 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:18:55,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:18:55,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:18:55,008 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:18:55,008 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:18:55,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:18:55,008 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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a [2023-11-24 23:18:55,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:18:55,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:18:55,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:18:55,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:18:55,317 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:18:55,319 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:18:58,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:18:58,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:18:58,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:18:58,719 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/fbf3e2f6d/02b517f3a8b14e8b84f0b28fabc233c5/FLAGa57c1690b [2023-11-24 23:18:58,740 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/fbf3e2f6d/02b517f3a8b14e8b84f0b28fabc233c5 [2023-11-24 23:18:58,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:18:58,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:18:58,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:58,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:18:58,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:18:58,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:58" (1/1) ... [2023-11-24 23:18:58,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@182bba28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:58, skipping insertion in model container [2023-11-24 23:18:58,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:58" (1/1) ... [2023-11-24 23:18:58,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:18:59,010 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-11-24 23:18:59,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:59,135 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:18:59,148 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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-11-24 23:18:59,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:59,234 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:18:59,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59 WrapperNode [2023-11-24 23:18:59,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:59,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:59,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:18:59,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:18:59,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,313 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272 [2023-11-24 23:18:59,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:59,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:18:59,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:18:59,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:18:59,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:18:59,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:18:59,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:18:59,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:18:59,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (1/1) ... [2023-11-24 23:18:59,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:59,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:18:59,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:18:59,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:18:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:18:59,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:18:59,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:18:59,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:18:59,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:18:59,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:18:59,572 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:18:59,574 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:00,230 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:00,645 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:00,645 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:00,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:00 BoogieIcfgContainer [2023-11-24 23:19:00,647 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:00,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:00,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:00,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:00,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:18:58" (1/3) ... [2023-11-24 23:19:00,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b43804c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:00, skipping insertion in model container [2023-11-24 23:19:00,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:59" (2/3) ... [2023-11-24 23:19:00,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b43804c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:00, skipping insertion in model container [2023-11-24 23:19:00,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:00" (3/3) ... [2023-11-24 23:19:00,662 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:19:00,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:00,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:00,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:00,751 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;@2b87c92b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:00,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-24 23:19:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-24 23:19:00,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:00,782 INFO L195 NwaCegarLoop]: trace histogram [36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:00,783 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:00,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1588832612, now seen corresponding path program 1 times [2023-11-24 23:19:00,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:00,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240818630] [2023-11-24 23:19:00,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:00,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:01,059 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-24 23:19:01,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423831660] [2023-11-24 23:19:01,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:01,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:19:01,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:01,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:19:01,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:19:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-24 23:19:01,396 WARN L124 FreeRefinementEngine]: Strategy SIFA_TAIPAN was unsuccessful and could not determine trace feasibility [2023-11-24 23:19:01,398 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-11-24 23:19:01,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 23:19:01,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:19:01,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 23:19:01,614 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:19:01,618 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:19:01,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:19:01 BoogieIcfgContainer [2023-11-24 23:19:01,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:19:01,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:19:01,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:19:01,692 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:19:01,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:00" (3/4) ... [2023-11-24 23:19:01,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:19:01,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:19:01,697 INFO L158 Benchmark]: Toolchain (without parser) took 2948.81ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 104.9MB in the beginning and 171.6MB in the end (delta: -66.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:01,698 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:01,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.37ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 88.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:19:01,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.41ms. Allocated memory is still 144.7MB. Free memory was 88.5MB in the beginning and 84.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:19:01,700 INFO L158 Benchmark]: Boogie Preprocessor took 52.54ms. Allocated memory is still 144.7MB. Free memory was 84.0MB in the beginning and 81.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:19:01,703 INFO L158 Benchmark]: RCFGBuilder took 1279.79ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 81.4MB in the beginning and 114.7MB in the end (delta: -33.3MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-11-24 23:19:01,704 INFO L158 Benchmark]: TraceAbstraction took 1039.28ms. Allocated memory is still 205.5MB. Free memory was 114.7MB in the beginning and 171.6MB in the end (delta: -56.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-24 23:19:01,704 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 205.5MB. Free memory is still 171.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:19:01,708 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.37ms. Allocated memory is still 144.7MB. Free memory was 104.9MB in the beginning and 88.5MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.41ms. Allocated memory is still 144.7MB. Free memory was 88.5MB in the beginning and 84.0MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.54ms. Allocated memory is still 144.7MB. Free memory was 84.0MB in the beginning and 81.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1279.79ms. Allocated memory was 144.7MB in the beginning and 205.5MB in the end (delta: 60.8MB). Free memory was 81.4MB in the beginning and 114.7MB in the end (delta: -33.3MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1039.28ms. Allocated memory is still 205.5MB. Free memory was 114.7MB in the beginning and 171.6MB in the end (delta: -56.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 205.5MB. Free memory is still 171.6MB. 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: unable to decide satisfiability of path constraint, overapproximation of someBinaryFLOATComparisonOperation at line 106, overapproximation of bitwiseOr at line 112, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of bitwiseAnd at line 80, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 256; [L23] unsigned short int var_1_2 = 51640; [L24] unsigned short int var_1_3 = 5; [L25] float var_1_7 = 128.8; [L26] unsigned char var_1_8 = 2; [L27] float var_1_9 = 256.5; [L28] float var_1_10 = 7.25; [L29] signed char var_1_11 = 64; [L30] signed char var_1_12 = -16; [L31] double var_1_13 = 0.9; [L32] unsigned char var_1_14 = 1; [L33] double var_1_15 = 0.0; [L34] double var_1_16 = 1.275; [L35] unsigned short int var_1_17 = 8; [L36] unsigned short int var_1_18 = 35331; [L37] signed char var_1_19 = -128; [L38] double var_1_20 = 0.0; [L39] double var_1_21 = 0.0; [L40] signed char var_1_22 = -8; [L41] signed char var_1_23 = 50; [L42] unsigned short int var_1_24 = 0; [L43] signed long int var_1_25 = -1; [L44] signed char var_1_26 = 5; [L45] signed long int var_1_27 = 32; [L46] unsigned char var_1_28 = 64; [L47] signed char var_1_29 = 100; [L48] signed char var_1_30 = -1; [L49] signed char var_1_31 = 10; [L50] signed char var_1_32 = 5; [L51] signed char var_1_33 = 1; [L52] unsigned short int var_1_34 = 32; [L53] unsigned char var_1_35 = 1; [L54] signed long int var_1_36 = -8; [L55] unsigned char var_1_37 = 1; [L56] float last_1_var_1_10 = 7.25; [L57] double last_1_var_1_13 = 0.9; [L58] unsigned short int last_1_var_1_17 = 8; [L59] signed char last_1_var_1_19 = -128; [L206] isInitial = 1 [L207] FCALL initially() [L208] COND TRUE 1 [L209] CALL updateLastVariables() [L196] last_1_var_1_10 = var_1_10 [L197] last_1_var_1_13 = var_1_13 [L198] last_1_var_1_17 = var_1_17 [L199] last_1_var_1_19 = var_1_19 [L209] RET updateLastVariables() [L210] CALL updateVariables() [L138] var_1_2 = __VERIFIER_nondet_ushort() [L139] CALL assume_abort_if_not(var_1_2 >= 32767) [L20] COND FALSE !(!cond) [L139] RET assume_abort_if_not(var_1_2 >= 32767) [L140] CALL assume_abort_if_not(var_1_2 <= 65535) [L20] COND FALSE !(!cond) [L140] RET assume_abort_if_not(var_1_2 <= 65535) [L141] var_1_3 = __VERIFIER_nondet_ushort() [L142] CALL assume_abort_if_not(var_1_3 >= 0) [L20] COND FALSE !(!cond) [L142] RET assume_abort_if_not(var_1_3 >= 0) [L143] CALL assume_abort_if_not(var_1_3 <= 32767) [L20] COND FALSE !(!cond) [L143] RET assume_abort_if_not(var_1_3 <= 32767) [L144] var_1_8 = __VERIFIER_nondet_uchar() [L145] CALL assume_abort_if_not(var_1_8 >= 0) [L20] COND FALSE !(!cond) [L145] RET assume_abort_if_not(var_1_8 >= 0) [L146] CALL assume_abort_if_not(var_1_8 <= 255) [L20] COND FALSE !(!cond) [L146] RET assume_abort_if_not(var_1_8 <= 255) [L147] CALL assume_abort_if_not(var_1_8 != 0) [L20] COND FALSE !(!cond) [L147] RET assume_abort_if_not(var_1_8 != 0) [L148] var_1_9 = __VERIFIER_nondet_float() [L149] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L149] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) [L150] var_1_12 = __VERIFIER_nondet_char() [L151] CALL assume_abort_if_not(var_1_12 >= -127) [L20] COND FALSE !(!cond) [L151] RET assume_abort_if_not(var_1_12 >= -127) [L152] CALL assume_abort_if_not(var_1_12 <= 126) [L20] COND FALSE !(!cond) [L152] RET assume_abort_if_not(var_1_12 <= 126) [L153] var_1_14 = __VERIFIER_nondet_uchar() [L154] CALL assume_abort_if_not(var_1_14 >= 0) [L20] COND FALSE !(!cond) [L154] RET assume_abort_if_not(var_1_14 >= 0) [L155] CALL assume_abort_if_not(var_1_14 <= 1) [L20] COND FALSE !(!cond) [L155] RET assume_abort_if_not(var_1_14 <= 1) [L156] var_1_15 = __VERIFIER_nondet_double() [L157] CALL assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L157] RET assume_abort_if_not((var_1_15 >= 2305843.009213691390e+12F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) [L158] var_1_16 = __VERIFIER_nondet_double() [L159] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L159] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) [L160] var_1_18 = __VERIFIER_nondet_ushort() [L161] CALL assume_abort_if_not(var_1_18 >= 32767) [L20] COND FALSE !(!cond) [L161] RET assume_abort_if_not(var_1_18 >= 32767) [L162] CALL assume_abort_if_not(var_1_18 <= 65534) [L20] COND FALSE !(!cond) [L162] RET assume_abort_if_not(var_1_18 <= 65534) [L163] var_1_20 = __VERIFIER_nondet_double() [L164] CALL assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L164] RET assume_abort_if_not((var_1_20 >= 4611686.018427387900e+12F && var_1_20 <= -1.0e-20F) || (var_1_20 <= 9223372.036854776000e+12F && var_1_20 >= 1.0e-20F )) [L165] var_1_21 = __VERIFIER_nondet_double() [L166] CALL assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) [L20] COND FALSE !(!cond) [L166] RET assume_abort_if_not((var_1_21 >= 4611686.018427387900e+12F && var_1_21 <= -1.0e-20F) || (var_1_21 <= 9223372.036854776000e+12F && var_1_21 >= 1.0e-20F )) [L167] var_1_22 = __VERIFIER_nondet_char() [L168] CALL assume_abort_if_not(var_1_22 >= -127) [L20] COND FALSE !(!cond) [L168] RET assume_abort_if_not(var_1_22 >= -127) [L169] CALL assume_abort_if_not(var_1_22 <= 126) [L20] COND FALSE !(!cond) [L169] RET assume_abort_if_not(var_1_22 <= 126) [L170] var_1_24 = __VERIFIER_nondet_ushort() [L171] CALL assume_abort_if_not(var_1_24 >= 0) [L20] COND FALSE !(!cond) [L171] RET assume_abort_if_not(var_1_24 >= 0) [L172] CALL assume_abort_if_not(var_1_24 <= 65535) [L20] COND FALSE !(!cond) [L172] RET assume_abort_if_not(var_1_24 <= 65535) [L173] var_1_25 = __VERIFIER_nondet_long() [L174] CALL assume_abort_if_not(var_1_25 >= -2147483648) [L20] COND FALSE !(!cond) [L174] RET assume_abort_if_not(var_1_25 >= -2147483648) [L175] CALL assume_abort_if_not(var_1_25 <= 2147483647) [L20] COND FALSE !(!cond) [L175] RET assume_abort_if_not(var_1_25 <= 2147483647) [L176] var_1_26 = __VERIFIER_nondet_char() [L177] CALL assume_abort_if_not(var_1_26 >= -127) [L20] COND FALSE !(!cond) [L177] RET assume_abort_if_not(var_1_26 >= -127) [L178] CALL assume_abort_if_not(var_1_26 <= 126) [L20] COND FALSE !(!cond) [L178] RET assume_abort_if_not(var_1_26 <= 126) [L179] var_1_30 = __VERIFIER_nondet_char() [L180] CALL assume_abort_if_not(var_1_30 >= -126) [L20] COND FALSE !(!cond) [L180] RET assume_abort_if_not(var_1_30 >= -126) [L181] CALL assume_abort_if_not(var_1_30 <= 126) [L20] COND FALSE !(!cond) [L181] RET assume_abort_if_not(var_1_30 <= 126) [L182] var_1_31 = __VERIFIER_nondet_char() [L183] CALL assume_abort_if_not(var_1_31 >= 0) [L20] COND FALSE !(!cond) [L183] RET assume_abort_if_not(var_1_31 >= 0) [L184] CALL assume_abort_if_not(var_1_31 <= 126) [L20] COND FALSE !(!cond) [L184] RET assume_abort_if_not(var_1_31 <= 126) [L185] var_1_33 = __VERIFIER_nondet_char() [L186] CALL assume_abort_if_not(var_1_33 >= 0) [L20] COND FALSE !(!cond) [L186] RET assume_abort_if_not(var_1_33 >= 0) [L187] CALL assume_abort_if_not(var_1_33 <= 126) [L20] COND FALSE !(!cond) [L187] RET assume_abort_if_not(var_1_33 <= 126) [L188] var_1_35 = __VERIFIER_nondet_uchar() [L189] CALL assume_abort_if_not(var_1_35 >= 0) [L20] COND FALSE !(!cond) [L189] RET assume_abort_if_not(var_1_35 >= 0) [L190] CALL assume_abort_if_not(var_1_35 <= 1) [L20] COND FALSE !(!cond) [L190] RET assume_abort_if_not(var_1_35 <= 1) [L191] var_1_37 = __VERIFIER_nondet_uchar() [L192] CALL assume_abort_if_not(var_1_37 >= 0) [L20] COND FALSE !(!cond) [L192] RET assume_abort_if_not(var_1_37 >= 0) [L193] CALL assume_abort_if_not(var_1_37 <= 1) [L20] COND FALSE !(!cond) [L193] RET assume_abort_if_not(var_1_37 <= 1) [L210] RET updateVariables() [L211] CALL step() [L63] signed long int stepLocal_2 = var_1_3 + last_1_var_1_19; [L64] COND FALSE !(\read(var_1_14)) [L75] COND TRUE (~ (- var_1_24)) < var_1_25 [L76] COND TRUE var_1_25 < -64 [L77] var_1_23 = var_1_26 [L80] EXPR var_1_28 & (~ var_1_29) [L80] COND FALSE !((var_1_28 & (~ var_1_29)) <= var_1_34) [L85] COND TRUE \read(var_1_37) [L86] var_1_36 = -128 [L89] COND FALSE !(var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) [L92] var_1_19 = var_1_12 [L94] var_1_17 = (var_1_18 - var_1_3) [L95] COND FALSE !(var_1_24 > var_1_25) [L98] COND FALSE !(var_1_26 <= 16) [L101] COND FALSE !(var_1_23 >= var_1_27) [L104] var_1_32 = var_1_26 [L106] COND FALSE !((var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10)) [L109] COND FALSE !(var_1_24 <= (((((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))) < 0 ) ? -((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25))) : ((((var_1_25) < 0 ) ? -(var_1_25) : (var_1_25)))))) [L112] EXPR var_1_28 & var_1_32 [L112] EXPR (var_1_28 & var_1_32) ^ var_1_23 [L112] EXPR var_1_29 & var_1_33 [L112] COND FALSE !(((var_1_28 & var_1_32) ^ var_1_23) < (var_1_29 & var_1_33)) [L117] COND TRUE var_1_10 >= var_1_10 [L118] COND FALSE !(var_1_9 < var_1_10) [L122] COND FALSE !((var_1_2 - var_1_3) > var_1_17) [L125] var_1_1 = 0 [L127] signed long int stepLocal_1 = var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))); [L128] unsigned short int stepLocal_0 = var_1_3; [L129] COND FALSE !((var_1_19 / var_1_8) < stepLocal_1) [L211] RET step() [L212] CALL, EXPR property() [L202-L203] return ((((((((var_1_2 - var_1_3) > var_1_17) ? (var_1_1 == ((signed long int) (((((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) < (var_1_17)) ? ((((((var_1_11 + var_1_3)) < (var_1_2)) ? ((var_1_11 + var_1_3)) : (var_1_2)))) : (var_1_17))))) : (var_1_1 == ((signed long int) 0))) && (((var_1_19 / var_1_8) < (var_1_1 / ((((2) < (var_1_2)) ? (2) : (var_1_2))))) ? ((var_1_1 >= var_1_3) ? (var_1_7 == ((float) 0.75f)) : (var_1_7 == ((float) var_1_9))) : 1)) && (((var_1_17 >= var_1_17) || (var_1_9 > last_1_var_1_10)) ? (var_1_10 == ((float) var_1_9)) : 1)) && ((var_1_10 >= var_1_10) ? ((var_1_9 < var_1_10) ? (var_1_11 == ((signed char) var_1_12)) : 1) : 1)) && (var_1_14 ? ((last_1_var_1_13 <= var_1_9) ? (var_1_13 == ((double) var_1_9)) : ((((((last_1_var_1_17) < ((var_1_2 * last_1_var_1_17))) ? (last_1_var_1_17) : ((var_1_2 * last_1_var_1_17)))) == (var_1_3 + last_1_var_1_19)) ? (var_1_13 == ((double) 8.75)) : (var_1_13 == ((double) (16.5 + ((var_1_15 - 49.35) - var_1_16)))))) : 1)) && (var_1_17 == ((unsigned short int) (var_1_18 - var_1_3)))) && ((var_1_13 > ((var_1_20 - var_1_15) - (var_1_21 - var_1_16))) ? (var_1_19 == ((signed char) ((((var_1_12) > (var_1_22)) ? (var_1_12) : (var_1_22))))) : (var_1_19 == ((signed char) var_1_12))) ; [L212] RET, EXPR property() [L212] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 65 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 36, 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=65occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 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 [2023-11-24 23:19:01,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91 --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 f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:19:04,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:19:04,543 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-24 23:19:04,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:19:04,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:19:04,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:19:04,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:19:04,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:19:04,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:19:04,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:19:04,605 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:19:04,606 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:19:04,606 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:19:04,608 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:19:04,608 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:19:04,609 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:19:04,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:19:04,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:19:04,611 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:19:04,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:19:04,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:19:04,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:19:04,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:19:04,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:19:04,614 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:19:04,615 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:19:04,615 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:19:04,616 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:19:04,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:19:04,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:19:04,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:19:04,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:19:04,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:19:04,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:19:04,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:04,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:19:04,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:19:04,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:19:04,621 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:19:04,622 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:19:04,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:19:04,623 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:19:04,623 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:19:04,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:19:04,624 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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1b3f8a58a85334f20dfe0d17f7409b90f2c515498edf0e401b907ad654c9f6a [2023-11-24 23:19:05,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:19:05,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:19:05,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:19:05,073 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:19:05,073 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:19:05,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:19:08,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:19:08,871 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:19:08,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:19:08,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/70b811f5f/1ec8a50065c941f4a66dea70df15fd7e/FLAGc465f4e20 [2023-11-24 23:19:08,903 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/data/70b811f5f/1ec8a50065c941f4a66dea70df15fd7e [2023-11-24 23:19:08,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:19:08,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:19:08,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:08,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:19:08,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:19:08,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:08" (1/1) ... [2023-11-24 23:19:08,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cccc568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:08, skipping insertion in model container [2023-11-24 23:19:08,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:19:08" (1/1) ... [2023-11-24 23:19:08,976 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:19:09,147 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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-11-24 23:19:09,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:09,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:19:09,258 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_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i[919,932] [2023-11-24 23:19:09,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:19:09,349 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:19:09,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09 WrapperNode [2023-11-24 23:19:09,349 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:19:09,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:09,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:19:09,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:19:09,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,375 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,412 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 217 [2023-11-24 23:19:09,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:19:09,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:19:09,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:19:09,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:19:09,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:19:09,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:19:09,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:19:09,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:19:09,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (1/1) ... [2023-11-24 23:19:09,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:19:09,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:09,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:19:09,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:19:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:19:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:19:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:19:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:19:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:19:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:19:09,764 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:19:09,768 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:19:18,071 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:18,145 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:18,145 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:19:18,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:18 BoogieIcfgContainer [2023-11-24 23:19:18,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:18,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:18,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:18,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:18,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:19:08" (1/3) ... [2023-11-24 23:19:18,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310a62a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:18, skipping insertion in model container [2023-11-24 23:19:18,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:19:09" (2/3) ... [2023-11-24 23:19:18,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310a62a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:18, skipping insertion in model container [2023-11-24 23:19:18,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:18" (3/3) ... [2023-11-24 23:19:18,154 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-37.i [2023-11-24 23:19:18,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:18,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:19:18,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:18,228 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;@2bb75b0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:18,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:19:18,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 53 states have (on average 1.490566037735849) internal successors, (79), 54 states have internal predecessors, (79), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-24 23:19:18,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-24 23:19:18,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:18,252 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:18,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:18,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:18,258 INFO L85 PathProgramCache]: Analyzing trace with hash -753784520, now seen corresponding path program 1 times [2023-11-24 23:19:18,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:18,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [109435087] [2023-11-24 23:19:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:18,274 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 [2023-11-24 23:19:18,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:18,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:19:18,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:19:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:19,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:19:19,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-11-24 23:19:23,958 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:19:23,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:23,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [109435087] [2023-11-24 23:19:23,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [109435087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:23,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:23,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:19:23,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186178062] [2023-11-24 23:19:23,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:23,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:19:24,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:24,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:24,021 INFO L87 Difference]: Start difference. First operand has 92 states, 53 states have (on average 1.490566037735849) internal successors, (79), 54 states have internal predecessors, (79), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-24 23:19:26,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:28,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:30,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:30,616 INFO L93 Difference]: Finished difference Result 269 states and 519 transitions. [2023-11-24 23:19:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:30,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 221 [2023-11-24 23:19:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:30,637 INFO L225 Difference]: With dead ends: 269 [2023-11-24 23:19:30,637 INFO L226 Difference]: Without dead ends: 178 [2023-11-24 23:19:30,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:30,647 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 40 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:30,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 293 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 6.5s Time] [2023-11-24 23:19:30,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-24 23:19:30,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176. [2023-11-24 23:19:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 101 states have (on average 1.396039603960396) internal successors, (141), 101 states have internal predecessors, (141), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-24 23:19:30,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 285 transitions. [2023-11-24 23:19:30,757 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 285 transitions. Word has length 221 [2023-11-24 23:19:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:30,762 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 285 transitions. [2023-11-24 23:19:30,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-11-24 23:19:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 285 transitions. [2023-11-24 23:19:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-24 23:19:30,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:30,783 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:19:30,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:19:30,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:19:30,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:19:31,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:31,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1093945912, now seen corresponding path program 1 times [2023-11-24 23:19:31,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:19:31,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892404954] [2023-11-24 23:19:31,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:31,002 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 [2023-11-24 23:19:31,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:19:31,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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) [2023-11-24 23:19:31,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:19:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:31,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:19:31,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 896 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2023-11-24 23:19:38,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:19:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 84 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2023-11-24 23:19:39,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:19:39,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892404954] [2023-11-24 23:19:39,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892404954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:19:39,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225030271] [2023-11-24 23:19:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:39,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:19:39,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/cvc4 [2023-11-24 23:19:39,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:19:39,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 23:19:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:40,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:19:40,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:19:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 833 proven. 84 refuted. 0 times theorem prover too weak. 1603 trivial. 0 not checked. [2023-11-24 23:19:46,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 23:19:47,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 21 proven. 84 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2023-11-24 23:19:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [225030271] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 23:19:47,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248480881] [2023-11-24 23:19:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:47,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:19:47,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:19:47,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:19:47,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae4709a8-b7cd-4851-bf7a-0808fa9839c6/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 23:19:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:48,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:19:48,005 INFO L285 TraceCheckSpWp]: Computing forward predicates...