./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje --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 314e5d58e7b703e5fb5e9b41bf5fcf59cb739c2277c37518a39fd1b7d54c96eb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:52:11,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:52:11,498 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:52:11,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:52:11,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:52:11,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:52:11,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:52:11,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:52:11,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:52:11,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:52:11,556 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:52:11,557 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:52:11,557 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:52:11,558 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:52:11,559 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:52:11,561 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:52:11,561 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:52:11,562 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:52:11,562 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:52:11,562 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:52:11,563 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:52:11,567 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:52:11,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:52:11,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:52:11,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:52:11,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:52:11,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:52:11,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:52:11,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:52:11,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:52:11,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:52:11,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:52:11,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:52:11,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:52:11,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:52:11,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:52:11,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:52:11,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:52:11,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:11,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:52:11,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:52:11,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:52:11,576 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:52:11,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:52:11,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:52:11,577 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:52:11,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:52:11,577 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_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314e5d58e7b703e5fb5e9b41bf5fcf59cb739c2277c37518a39fd1b7d54c96eb [2024-11-09 05:52:11,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:52:12,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:52:12,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:52:12,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:52:12,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:52:12,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i Unable to find full path for "g++" [2024-11-09 05:52:14,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:52:14,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:52:14,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i [2024-11-09 05:52:14,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/e2148cd40/b9eb746f35794522bda968d7cb3a1649/FLAG768f204a7 [2024-11-09 05:52:14,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/e2148cd40/b9eb746f35794522bda968d7cb3a1649 [2024-11-09 05:52:14,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:52:14,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:52:14,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:14,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:52:14,720 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:52:14,721 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:14" (1/1) ... [2024-11-09 05:52:14,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f4023c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:14, skipping insertion in model container [2024-11-09 05:52:14,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:14" (1/1) ... [2024-11-09 05:52:14,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:52:14,962 WARN L250 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_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i[914,927] [2024-11-09 05:52:15,003 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:15,014 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:52:15,028 WARN L250 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_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i[914,927] [2024-11-09 05:52:15,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:15,066 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:52:15,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15 WrapperNode [2024-11-09 05:52:15,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:15,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:15,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:52:15,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:52:15,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,127 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-11-09 05:52:15,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:15,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:52:15,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:52:15,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:52:15,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:52:15,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:52:15,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:52:15,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:52:15,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (1/1) ... [2024-11-09 05:52:15,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:15,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:15,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:52:15,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:52:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:52:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:52:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:52:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:52:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:52:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:52:15,329 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:52:15,341 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:52:15,606 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 05:52:15,606 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:52:15,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:52:15,715 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:52:15,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:15 BoogieIcfgContainer [2024-11-09 05:52:15,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:52:15,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:52:15,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:52:15,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:52:15,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:52:14" (1/3) ... [2024-11-09 05:52:15,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8d596d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:15, skipping insertion in model container [2024-11-09 05:52:15,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:15" (2/3) ... [2024-11-09 05:52:15,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8d596d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:15, skipping insertion in model container [2024-11-09 05:52:15,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:15" (3/3) ... [2024-11-09 05:52:15,736 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-3.i [2024-11-09 05:52:15,755 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:52:15,755 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:52:15,830 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:52:15,838 INFO L333 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, 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;@22508bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:52:15,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:52:15,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:52:15,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:52:15,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:15,852 INFO L215 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:15,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:52:15,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1206381892, now seen corresponding path program 1 times [2024-11-09 05:52:15,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:52:15,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829429699] [2024-11-09 05:52:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:15,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:52:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:52:16,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:52:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:52:16,347 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:52:16,349 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:52:16,351 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:52:16,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:52:16,359 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:52:16,430 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:52:16,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:52:16 BoogieIcfgContainer [2024-11-09 05:52:16,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:52:16,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:52:16,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:52:16,434 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:52:16,435 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:15" (3/4) ... [2024-11-09 05:52:16,438 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:52:16,443 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:52:16,446 INFO L158 Benchmark]: Toolchain (without parser) took 1733.02ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 68.2MB in the end (delta: 53.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,446 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:52:16,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.22ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 107.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.65ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,448 INFO L158 Benchmark]: Boogie Preprocessor took 28.27ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 103.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:52:16,448 INFO L158 Benchmark]: RCFGBuilder took 558.20ms. Allocated memory is still 151.0MB. Free memory was 103.9MB in the beginning and 102.2MB in the end (delta: 1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,449 INFO L158 Benchmark]: TraceAbstraction took 715.55ms. Allocated memory is still 151.0MB. Free memory was 101.8MB in the beginning and 68.7MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,450 INFO L158 Benchmark]: Witness Printer took 8.74ms. Allocated memory is still 151.0MB. Free memory was 68.7MB in the beginning and 68.2MB in the end (delta: 460.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:52:16,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 113.2MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.22ms. Allocated memory is still 151.0MB. Free memory was 121.2MB in the beginning and 107.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.65ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.27ms. Allocated memory is still 151.0MB. Free memory was 105.2MB in the beginning and 103.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 558.20ms. Allocated memory is still 151.0MB. Free memory was 103.9MB in the beginning and 102.2MB in the end (delta: 1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 715.55ms. Allocated memory is still 151.0MB. Free memory was 101.8MB in the beginning and 68.7MB in the end (delta: 33.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 8.74ms. Allocated memory is still 151.0MB. Free memory was 68.7MB in the beginning and 68.2MB in the end (delta: 460.3kB). 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 someBinaryDOUBLEComparisonOperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] signed long int var_1_6 = -64; [L26] signed long int var_1_7 = -5; [L27] signed long int var_1_8 = 500; [L28] signed long int var_1_9 = -5; [L29] signed long int var_1_10 = -100; [L30] unsigned char var_1_11 = 1; [L31] double var_1_12 = 127.5; [L32] double var_1_13 = 7.25; [L33] unsigned char var_1_14 = 1; [L34] unsigned char var_1_15 = 0; [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L64] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L67] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-5, var_1_8=500, var_1_9=-5] [L68] var_1_7 = __VERIFIER_nondet_long() [L69] CALL assume_abort_if_not(var_1_7 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=500, var_1_9=-5] [L70] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=500, var_1_9=-5] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=500, var_1_9=-5] [L71] var_1_8 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_8 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=-5] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_8 >= -1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=-5] [L73] CALL assume_abort_if_not(var_1_8 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=-5] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_8 <= 1073741823) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=-5] [L74] var_1_9 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_9 >= -536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_9 >= -536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L76] CALL assume_abort_if_not(var_1_9 <= 536870912) VAL [\old(cond)=1, isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 <= 536870912) VAL [isInitial=1, var_1_10=-100, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L77] var_1_10 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_10 >= -536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_10 >= -536870911) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L79] CALL assume_abort_if_not(var_1_10 <= 536870911) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 <= 536870911) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_13=29/4, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L80] var_1_13 = __VERIFIER_nondet_double() [L81] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=0, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L82] var_1_15 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_15 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_15 >= 1) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L84] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=255/2, var_1_14=1, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-64, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L97] RET updateVariables() [L98] CALL step() [L38] var_1_12 = var_1_13 [L39] var_1_14 = var_1_15 [L40] COND FALSE !(! var_1_14) [L43] var_1_6 = ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7) [L45] signed long int stepLocal_2 = var_1_7; [L46] signed long int stepLocal_1 = var_1_9; [L47] COND TRUE var_1_8 <= stepLocal_2 [L48] COND TRUE var_1_10 >= stepLocal_1 [L49] var_1_11 = (! var_1_5) [L54] unsigned char stepLocal_0 = var_1_14; [L55] COND FALSE !(! var_1_11) [L98] RET step() [L99] CALL, EXPR property() [L89-L90] return (((((! var_1_11) ? ((var_1_11 && var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 || var_1_5))) : 1) : 1) && ((! var_1_14) ? (var_1_6 == ((signed long int) (var_1_7 + var_1_8))) : (var_1_6 == ((signed long int) ((((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))) + var_1_10) + var_1_7))))) && ((var_1_8 <= var_1_7) ? ((var_1_10 >= var_1_9) ? (var_1_11 == ((unsigned char) (! var_1_5))) : (var_1_11 == ((unsigned char) (var_1_14 || (! var_1_5))))) : 1)) && (var_1_12 == ((double) var_1_13))) && (var_1_14 == ((unsigned char) var_1_15)) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=536870916, var_1_13=536870916, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-536870912, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] [L19] reach_error() VAL [isInitial=1, var_1_10=536870911, var_1_11=1, var_1_12=536870916, var_1_13=536870916, var_1_14=-255, var_1_15=-255, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=-536870912, var_1_7=-1073741823, var_1_8=-1073741823, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:52:16,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje --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 314e5d58e7b703e5fb5e9b41bf5fcf59cb739c2277c37518a39fd1b7d54c96eb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:52:18,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:52:19,028 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:52:19,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:52:19,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:52:19,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:52:19,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:52:19,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:52:19,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:52:19,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:52:19,082 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:52:19,083 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:52:19,083 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:52:19,084 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:52:19,085 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:52:19,085 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:52:19,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:52:19,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:52:19,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:52:19,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:52:19,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:52:19,088 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:52:19,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:52:19,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:52:19,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:52:19,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:52:19,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:52:19,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:52:19,091 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:52:19,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:52:19,091 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:52:19,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:52:19,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:52:19,092 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:52:19,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:52:19,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:19,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:52:19,093 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:52:19,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:52:19,094 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:52:19,094 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:52:19,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:52:19,096 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:52:19,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314e5d58e7b703e5fb5e9b41bf5fcf59cb739c2277c37518a39fd1b7d54c96eb [2024-11-09 05:52:19,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:52:19,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:52:19,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:52:19,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:52:19,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:52:19,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i Unable to find full path for "g++" [2024-11-09 05:52:21,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:52:22,021 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:52:22,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i [2024-11-09 05:52:22,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/f75ef9da4/4bc68745cf84414aa532ba605b012e0c/FLAGaf76d8c74 [2024-11-09 05:52:22,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/data/f75ef9da4/4bc68745cf84414aa532ba605b012e0c [2024-11-09 05:52:22,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:52:22,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:52:22,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:22,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:52:22,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:52:22,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ca396f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22, skipping insertion in model container [2024-11-09 05:52:22,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:52:22,296 WARN L250 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_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i[914,927] [2024-11-09 05:52:22,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:22,400 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:52:22,417 WARN L250 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_cad54b01-5f1a-496d-85db-4d0c850152fa/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-3.i[914,927] [2024-11-09 05:52:22,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:52:22,487 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:52:22,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22 WrapperNode [2024-11-09 05:52:22,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:52:22,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:22,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:52:22,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:52:22,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,556 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-09 05:52:22,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:52:22,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:52:22,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:52:22,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:52:22,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:52:22,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:52:22,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:52:22,614 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:52:22,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (1/1) ... [2024-11-09 05:52:22,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:52:22,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:52:22,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:52:22,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:52:22,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:52:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:52:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:52:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:52:22,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:52:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:52:22,812 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:52:22,815 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:52:23,115 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 05:52:23,115 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:52:23,134 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:52:23,135 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:52:23,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:23 BoogieIcfgContainer [2024-11-09 05:52:23,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:52:23,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:52:23,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:52:23,143 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:52:23,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:52:22" (1/3) ... [2024-11-09 05:52:23,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b95b9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:23, skipping insertion in model container [2024-11-09 05:52:23,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:52:22" (2/3) ... [2024-11-09 05:52:23,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b95b9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:52:23, skipping insertion in model container [2024-11-09 05:52:23,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:52:23" (3/3) ... [2024-11-09 05:52:23,147 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-3.i [2024-11-09 05:52:23,166 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:52:23,166 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:52:23,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:52:23,247 INFO L333 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, 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;@42204267, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:52:23,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:52:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:52:23,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 05:52:23,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:23,277 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:23,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:52:23,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1159470636, now seen corresponding path program 1 times [2024-11-09 05:52:23,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:52:23,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [637768219] [2024-11-09 05:52:23,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:23,297 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 [2024-11-09 05:52:23,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:52:23,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:52:23,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:52:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:23,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:52:23,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:52:23,771 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-09 05:52:23,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:52:23,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:52:23,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [637768219] [2024-11-09 05:52:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [637768219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:52:23,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:52:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 05:52:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297016450] [2024-11-09 05:52:23,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:52:23,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:52:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:52:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:52:23,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:52:23,817 INFO L87 Difference]: Start difference. First operand has 49 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:52:24,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:52:24,696 INFO L93 Difference]: Finished difference Result 125 states and 215 transitions. [2024-11-09 05:52:24,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:52:24,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 97 [2024-11-09 05:52:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:52:24,712 INFO L225 Difference]: With dead ends: 125 [2024-11-09 05:52:24,713 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 05:52:24,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:52:24,724 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 80 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:52:24,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 188 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:52:24,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 05:52:24,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 74. [2024-11-09 05:52:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-09 05:52:24,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2024-11-09 05:52:24,816 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 97 [2024-11-09 05:52:24,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:52:24,818 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2024-11-09 05:52:24,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 05:52:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2024-11-09 05:52:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 05:52:24,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:52:24,826 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:52:24,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:52:25,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:52:25,027 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:52:25,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:52:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -479412266, now seen corresponding path program 1 times [2024-11-09 05:52:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:52:25,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605423297] [2024-11-09 05:52:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:52:25,029 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 [2024-11-09 05:52:25,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:52:25,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:52:25,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:52:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:52:25,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:52:25,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:54:16,254 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 157 proven. 128 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-09 05:54:16,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:58:11,950 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:58:11,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605423297] [2024-11-09 05:58:11,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605423297] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:58:11,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133364175] [2024-11-09 05:58:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:58:11,952 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 05:58:11,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 05:58:11,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 05:58:11,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 05:58:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:58:12,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 05:58:12,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:59:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 245 proven. 36 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-09 05:59:08,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:02:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 42 proven. 39 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-09 06:02:50,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1133364175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:02:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595639041] [2024-11-09 06:02:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:02:50,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:02:50,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:02:50,170 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:02:50,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cad54b01-5f1a-496d-85db-4d0c850152fa/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:02:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:02:50,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:02:50,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:03:46,651 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 212 proven. 72 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-09 06:03:46,652 INFO L311 TraceCheckSpWp]: Computing backward predicates...