./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.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_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/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_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/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_01908a7e-400b-48ae-b8a1-5994db107e9b/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 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:43:47,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:43:47,718 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:43:47,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:43:47,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:43:47,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:43:47,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:43:47,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:43:47,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:43:47,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:43:47,761 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:43:47,762 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:43:47,763 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:43:47,763 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:43:47,764 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:43:47,764 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:43:47,765 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:43:47,765 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:43:47,766 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:43:47,766 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:43:47,767 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:43:47,767 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:43:47,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:43:47,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:43:47,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:43:47,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:43:47,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:43:47,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:43:47,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:43:47,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:43:47,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:43:47,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:43:47,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:43:47,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:43:47,774 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:43:47,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:43:47,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:43:47,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:43:47,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:43:47,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:43:47,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:43:47,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:43:47,778 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:43:47,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:43:47,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:43:47,779 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:43:47,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:43:47,780 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_01908a7e-400b-48ae-b8a1-5994db107e9b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97e6e3d13746c4e22bbbdf0b6c24dfd54006258f6e92602d0c646bb6642564ab [2024-11-09 06:43:48,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:43:48,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:43:48,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:43:48,188 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:43:48,189 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:43:48,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i Unable to find full path for "g++" [2024-11-09 06:43:50,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:43:50,732 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:43:50,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i [2024-11-09 06:43:50,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/data/9356afaad/ebf67c6a8d434b9ba517126289eefb48/FLAG3be945ecf [2024-11-09 06:43:50,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/data/9356afaad/ebf67c6a8d434b9ba517126289eefb48 [2024-11-09 06:43:50,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:43:50,769 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:43:50,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:43:50,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:43:50,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:43:50,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:43:50" (1/1) ... [2024-11-09 06:43:50,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f49cd80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:50, skipping insertion in model container [2024-11-09 06:43:50,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:43:50" (1/1) ... [2024-11-09 06:43:50,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:43:51,071 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_01908a7e-400b-48ae-b8a1-5994db107e9b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2024-11-09 06:43:51,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:43:51,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:43:51,182 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_01908a7e-400b-48ae-b8a1-5994db107e9b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-89.i[916,929] [2024-11-09 06:43:51,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:43:51,271 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:43:51,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51 WrapperNode [2024-11-09 06:43:51,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:43:51,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:43:51,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:43:51,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:43:51,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,382 INFO L138 Inliner]: procedures = 26, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 435 [2024-11-09 06:43:51,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:43:51,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:43:51,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:43:51,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:43:51,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:43:51,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:43:51,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:43:51,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:43:51,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (1/1) ... [2024-11-09 06:43:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:43:51,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:43:51,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:43:51,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:43:51,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:43:51,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:43:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:43:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:43:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:43:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:43:51,774 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:43:51,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:43:52,644 INFO L? ?]: Removed 96 outVars from TransFormulas that were not future-live. [2024-11-09 06:43:52,644 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:43:53,486 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:43:53,489 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:43:53,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:43:53 BoogieIcfgContainer [2024-11-09 06:43:53,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:43:53,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:43:53,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:43:53,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:43:53,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:43:50" (1/3) ... [2024-11-09 06:43:53,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f28f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:43:53, skipping insertion in model container [2024-11-09 06:43:53,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:43:51" (2/3) ... [2024-11-09 06:43:53,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f28f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:43:53, skipping insertion in model container [2024-11-09 06:43:53,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:43:53" (3/3) ... [2024-11-09 06:43:53,505 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-89.i [2024-11-09 06:43:53,532 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:43:53,533 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:43:53,607 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:43:53,615 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;@47f03bb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:43:53,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:43:53,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:43:53,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 06:43:53,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:43:53,630 INFO L215 NwaCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:43:53,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:43:53,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:43:53,638 INFO L85 PathProgramCache]: Analyzing trace with hash 435583951, now seen corresponding path program 1 times [2024-11-09 06:43:53,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:43:53,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861318213] [2024-11-09 06:43:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:43:53,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:43:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:44:23,880 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-09 06:44:23,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:44:23,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861318213] [2024-11-09 06:44:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861318213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:44:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169187676] [2024-11-09 06:44:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:44:23,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:44:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:44:23,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:44:23,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01908a7e-400b-48ae-b8a1-5994db107e9b/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:44:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:44:24,696 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 84 conjuncts are in the unsatisfiable core [2024-11-09 06:44:24,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:44:24,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:25,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2024-11-09 06:44:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:25,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2024-11-09 06:44:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:26,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2024-11-09 06:44:27,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:27,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2024-11-09 06:44:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:27,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2024-11-09 06:44:28,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:28,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 06:44:28,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2024-11-09 06:44:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 19 proven. 93 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:44:54,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:46,337 WARN L286 SmtUtils]: Spent 11.48s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:54:56,366 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:55:03,976 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:55:21,001 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:55:31,099 WARN L286 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:55:40,129 WARN L286 SmtUtils]: Spent 6.47s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:55:48,036 WARN L286 SmtUtils]: Spent 7.90s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:56:25,341 WARN L286 SmtUtils]: Spent 6.30s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:56:41,581 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:06,537 WARN L286 SmtUtils]: Spent 8.36s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:18,685 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 27 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:25,038 WARN L286 SmtUtils]: Spent 6.35s on a formula simplification that was a NOOP. DAG size: 26 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:33,339 WARN L286 SmtUtils]: Spent 8.30s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:42,557 WARN L286 SmtUtils]: Spent 9.22s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:57:50,903 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:58:00,771 WARN L286 SmtUtils]: Spent 9.87s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:58:08,597 WARN L286 SmtUtils]: Spent 7.82s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:58:16,141 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:58:27,376 WARN L286 SmtUtils]: Spent 11.23s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 06:58:38,861 WARN L286 SmtUtils]: Spent 11.48s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)